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YARN-7841. Cleanup AllocationFileLoaderService's reloadAllocations method (snemeth via rkanter)

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This commit is contained in:
Robert Kanter 2018-02-06 14:36:49 -08:00
parent 4304fcd5bd
commit 814d701d46
13 changed files with 1803 additions and 552 deletions
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99
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AllocationConfiguration.java
View File

@ -31,6 +31,8 @@
import org.apache.hadoop.yarn.security.AccessType;
import org.apache.hadoop.yarn.server.resourcemanager.reservation.ReservationSchedulerConfiguration;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation.AllocationFileParser;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation.QueueProperties;
import org.apache.hadoop.yarn.util.resource.Resources;
import com.google.common.annotations.VisibleForTesting;
@ -47,7 +49,7 @@ public class AllocationConfiguration extends ReservationSchedulerConfiguration {
private final Map<String, ConfigurableResource> maxChildQueueResources;
// Sharing weights for each queue
private final Map<String, Float> queueWeights;
// Max concurrent running applications for each queue and for each user; in addition,
// for users that have no max specified, we use the userMaxJobsDefault.
@VisibleForTesting
@ -88,13 +90,13 @@ public class AllocationConfiguration extends ReservationSchedulerConfiguration {
private final Set<String> reservableQueues;
private final Map<String, SchedulingPolicy> schedulingPolicies;
private final SchedulingPolicy defaultSchedulingPolicy;
// Policy for mapping apps to queues
@VisibleForTesting
QueuePlacementPolicy placementPolicy;
//Configured queues in the alloc xml
@VisibleForTesting
Map<FSQueueType, Set<String>> configuredQueues;
@ -104,53 +106,42 @@ public class AllocationConfiguration extends ReservationSchedulerConfiguration {
private final Set<String> nonPreemptableQueues;
public AllocationConfiguration(Map<String, Resource> minQueueResources,
Map<String, ConfigurableResource> maxQueueResources,
Map<String, ConfigurableResource> maxChildQueueResources,
Map<String, Integer> queueMaxApps,
Map<String, Integer> userMaxApps,
Map<String, Float> queueWeights,
Map<String, Float> queueMaxAMShares, int userMaxAppsDefault,
int queueMaxAppsDefault,
ConfigurableResource queueMaxResourcesDefault,
float queueMaxAMShareDefault,
Map<String, SchedulingPolicy> schedulingPolicies,
SchedulingPolicy defaultSchedulingPolicy,
Map<String, Long> minSharePreemptionTimeouts,
Map<String, Long> fairSharePreemptionTimeouts,
Map<String, Float> fairSharePreemptionThresholds,
Map<String, Map<AccessType, AccessControlList>> queueAcls,
Map<String, Map<ReservationACL, AccessControlList>> resAcls,
QueuePlacementPolicy placementPolicy,
Map<FSQueueType, Set<String>> configuredQueues,
ReservationQueueConfiguration globalReservationQueueConfig,
Set<String> reservableQueues,
Set<String> nonPreemptableQueues) {
this.minQueueResources = minQueueResources;
this.maxQueueResources = maxQueueResources;
this.maxChildQueueResources = maxChildQueueResources;
this.queueMaxApps = queueMaxApps;
this.userMaxApps = userMaxApps;
this.queueMaxAMShares = queueMaxAMShares;
this.queueWeights = queueWeights;
this.userMaxAppsDefault = userMaxAppsDefault;
this.queueMaxResourcesDefault = queueMaxResourcesDefault;
this.queueMaxAppsDefault = queueMaxAppsDefault;
this.queueMaxAMShareDefault = queueMaxAMShareDefault;
this.defaultSchedulingPolicy = defaultSchedulingPolicy;
this.schedulingPolicies = schedulingPolicies;
this.minSharePreemptionTimeouts = minSharePreemptionTimeouts;
this.fairSharePreemptionTimeouts = fairSharePreemptionTimeouts;
this.fairSharePreemptionThresholds = fairSharePreemptionThresholds;
this.queueAcls = queueAcls;
this.resAcls = resAcls;
this.reservableQueues = reservableQueues;
public AllocationConfiguration(QueueProperties queueProperties,
AllocationFileParser allocationFileParser,
QueuePlacementPolicy newPlacementPolicy,
ReservationQueueConfiguration globalReservationQueueConfig)
throws AllocationConfigurationException {
this.minQueueResources = queueProperties.getMinQueueResources();
this.maxQueueResources = queueProperties.getMaxQueueResources();
this.maxChildQueueResources = queueProperties.getMaxChildQueueResources();
this.queueMaxApps = queueProperties.getQueueMaxApps();
this.userMaxApps = allocationFileParser.getUserMaxApps();
this.queueMaxAMShares = queueProperties.getQueueMaxAMShares();
this.queueWeights = queueProperties.getQueueWeights();
this.userMaxAppsDefault = allocationFileParser.getUserMaxAppsDefault();
this.queueMaxResourcesDefault =
allocationFileParser.getQueueMaxResourcesDefault();
this.queueMaxAppsDefault = allocationFileParser.getQueueMaxAppsDefault();
this.queueMaxAMShareDefault =
allocationFileParser.getQueueMaxAMShareDefault();
this.defaultSchedulingPolicy =
allocationFileParser.getDefaultSchedulingPolicy();
this.schedulingPolicies = queueProperties.getQueuePolicies();
this.minSharePreemptionTimeouts =
queueProperties.getMinSharePreemptionTimeouts();
this.fairSharePreemptionTimeouts =
queueProperties.getFairSharePreemptionTimeouts();
this.fairSharePreemptionThresholds =
queueProperties.getFairSharePreemptionThresholds();
this.queueAcls = queueProperties.getQueueAcls();
this.resAcls = queueProperties.getReservationAcls();
this.reservableQueues = queueProperties.getReservableQueues();
this.globalReservationQueueConfig = globalReservationQueueConfig;
this.placementPolicy = placementPolicy;
this.configuredQueues = configuredQueues;
this.nonPreemptableQueues = nonPreemptableQueues;
this.placementPolicy = newPlacementPolicy;
this.configuredQueues = queueProperties.getConfiguredQueues();
this.nonPreemptableQueues = queueProperties.getNonPreemptableQueues();
}
public AllocationConfiguration(Configuration conf) {
minQueueResources = new HashMap<>();
maxChildQueueResources = new HashMap<>();
@ -179,7 +170,7 @@ public AllocationConfiguration(Configuration conf) {
QueuePlacementPolicy.fromConfiguration(conf, configuredQueues);
nonPreemptableQueues = new HashSet<>();
}
/**
* Get the ACLs associated with this queue. If a given ACL is not explicitly
* configured, include the default value for that ACL. The default for the
@ -300,7 +291,7 @@ ConfigurableResource getMaxResources(String queue) {
}
return maxQueueResource;
}
/**
* Get the maximum resource allocation for children of the given queue.
*
@ -317,15 +308,15 @@ SchedulingPolicy getSchedulingPolicy(String queueName) {
SchedulingPolicy policy = schedulingPolicies.get(queueName);
return (policy == null) ? defaultSchedulingPolicy : policy;
}
public SchedulingPolicy getDefaultSchedulingPolicy() {
return defaultSchedulingPolicy;
}
public Map<FSQueueType, Set<String>> getConfiguredQueues() {
return configuredQueues;
}
public QueuePlacementPolicy getPlacementPolicy() {
return placementPolicy;
}

491
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AllocationFileLoaderService.java
View File

@ -29,24 +29,20 @@
import org.apache.hadoop.security.authorize.AccessControlList;
import org.apache.hadoop.service.AbstractService;
import org.apache.hadoop.yarn.api.records.QueueACL;
import org.apache.hadoop.yarn.api.records.ReservationACL;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.security.AccessType;
import org.apache.hadoop.yarn.security.Permission;
import org.apache.hadoop.yarn.security.PrivilegedEntity;
import org.apache.hadoop.yarn.security.PrivilegedEntity.EntityType;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FifoPolicy;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation.AllocationFileParser;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation.AllocationFileQueueParser;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation.QueueProperties;
import org.apache.hadoop.yarn.util.Clock;
import org.apache.hadoop.yarn.util.SystemClock;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
@ -54,18 +50,18 @@
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation.AllocationFileQueueParser.EVERYBODY_ACL;
import static org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation.AllocationFileQueueParser.ROOT;
@Public
@Unstable
public class AllocationFileLoaderService extends AbstractService {
public static final Log LOG = LogFactory.getLog(
AllocationFileLoaderService.class.getName());
/** Time to wait between checks of the allocation file */
public static final long ALLOC_RELOAD_INTERVAL_MS = 10 * 1000;
@ -80,11 +76,6 @@ public class AllocationFileLoaderService extends AbstractService {
//Permitted allocation file filesystems (case insensitive)
private static final String SUPPORTED_FS_REGEX =
"(?i)(hdfs)|(file)|(s3a)|(viewfs)";
private static final String ROOT = "root";
private static final AccessControlList EVERYBODY_ACL =
new AccessControlList("*");
private static final AccessControlList NOBODY_ACL =
new AccessControlList(" ");
private final Clock clock;
@ -97,10 +88,10 @@ public class AllocationFileLoaderService extends AbstractService {
private FileSystem fs;
private Listener reloadListener;
@VisibleForTesting
long reloadIntervalMs = ALLOC_RELOAD_INTERVAL_MS;
private Thread reloadThread;
private volatile boolean running = true;
@ -114,7 +105,7 @@ public AllocationFileLoaderService(Clock clock) {
super(AllocationFileLoaderService.class.getName());
this.clock = clock;
}
@Override
public void serviceInit(Configuration conf) throws Exception {
this.allocFile = getAllocationFile(conf);
@ -161,7 +152,7 @@ public void serviceInit(Configuration conf) throws Exception {
}
super.serviceInit(conf);
}
@Override
public void serviceStart() throws Exception {
if (reloadThread != null) {
@ -169,7 +160,7 @@ public void serviceStart() throws Exception {
}
super.serviceStart();
}
@Override
public void serviceStop() throws Exception {
running = false;
@ -183,7 +174,7 @@ public void serviceStop() throws Exception {
}
super.serviceStop();
}
/**
* Path to XML file containing allocations. If the
* path is relative, it is searched for in the
@ -215,11 +206,11 @@ public Path getAllocationFile(Configuration conf)
}
return allocPath;
}
public synchronized void setReloadListener(Listener reloadListener) {
this.reloadListener = reloadListener;
}
/**
* Updates the allocation list from the allocation config file. This file is
* expected to be in the XML format specified in the design doc.
@ -229,417 +220,111 @@ public synchronized void setReloadListener(Listener reloadListener) {
* @throws ParserConfigurationException if XML parser is misconfigured.
* @throws SAXException if config file is malformed.
*/
public synchronized void reloadAllocations() throws IOException,
ParserConfigurationException, SAXException,
public synchronized void reloadAllocations()
throws IOException, ParserConfigurationException, SAXException,
AllocationConfigurationException {
if (allocFile == null) {
reloadListener.onReload(null);
return;
}
LOG.info("Loading allocation file " + allocFile);
// Create some temporary hashmaps to hold the new allocs, and we only save
// them in our fields if we have parsed the entire allocs file successfully.
Map<String, Resource> minQueueResources = new HashMap<>();
Map<String, ConfigurableResource> maxQueueResources = new HashMap<>();
Map<String, ConfigurableResource> maxChildQueueResources = new HashMap<>();
Map<String, Integer> queueMaxApps = new HashMap<>();
Map<String, Integer> userMaxApps = new HashMap<>();
Map<String, Float> queueMaxAMShares = new HashMap<>();
Map<String, Float> queueWeights = new HashMap<>();
Map<String, SchedulingPolicy> queuePolicies = new HashMap<>();
Map<String, Long> minSharePreemptionTimeouts = new HashMap<>();
Map<String, Long> fairSharePreemptionTimeouts = new HashMap<>();
Map<String, Float> fairSharePreemptionThresholds = new HashMap<>();
Map<String, Map<AccessType, AccessControlList>> queueAcls =
new HashMap<>();
Map<String, Map<ReservationACL, AccessControlList>> reservationAcls =
new HashMap<>();
Set<String> reservableQueues = new HashSet<>();
Set<String> nonPreemptableQueues = new HashSet<>();
int userMaxAppsDefault = Integer.MAX_VALUE;
int queueMaxAppsDefault = Integer.MAX_VALUE;
ConfigurableResource queueMaxResourcesDefault =
new ConfigurableResource(Resources.unbounded());
float queueMaxAMShareDefault = 0.5f;
long defaultFairSharePreemptionTimeout = Long.MAX_VALUE;
long defaultMinSharePreemptionTimeout = Long.MAX_VALUE;
float defaultFairSharePreemptionThreshold = 0.5f;
SchedulingPolicy defaultSchedPolicy = SchedulingPolicy.DEFAULT_POLICY;
// Reservation global configuration knobs
String planner = null;
String reservationAgent = null;
String reservationAdmissionPolicy = null;
QueuePlacementPolicy newPlacementPolicy = null;
// Remember all queue names so we can display them on web UI, etc.
// configuredQueues is segregated based on whether it is a leaf queue
// or a parent queue. This information is used for creating queues
// and also for making queue placement decisions(QueuePlacementRule.java).
Map<FSQueueType, Set<String>> configuredQueues = new HashMap<>();
for (FSQueueType queueType : FSQueueType.values()) {
configuredQueues.put(queueType, new HashSet<>());
}
// Read and parse the allocations file.
DocumentBuilderFactory docBuilderFactory =
DocumentBuilderFactory.newInstance();
DocumentBuilderFactory.newInstance();
docBuilderFactory.setIgnoringComments(true);
DocumentBuilder builder = docBuilderFactory.newDocumentBuilder();
Document doc = builder.parse(fs.open(allocFile));
Element root = doc.getDocumentElement();
if (!"allocations".equals(root.getTagName()))
throw new AllocationConfigurationException("Bad fair scheduler config " +
"file: top-level element not <allocations>");
if (!"allocations".equals(root.getTagName())) {
throw new AllocationConfigurationException("Bad fair scheduler config "
+ "file: top-level element not <allocations>");
}
NodeList elements = root.getChildNodes();
List<Element> queueElements = new ArrayList<>();
Element placementPolicyElement = null;
for (int i = 0; i < elements.getLength(); i++) {
Node node = elements.item(i);
if (node instanceof Element) {
Element element = (Element)node;
if ("queue".equals(element.getTagName()) ||
"pool".equals(element.getTagName())) {
queueElements.add(element);
} else if ("user".equals(element.getTagName())) {
String userName = element.getAttribute("name");
NodeList fields = element.getChildNodes();
for (int j = 0; j < fields.getLength(); j++) {
Node fieldNode = fields.item(j);
if (!(fieldNode instanceof Element)) {
continue;
}
Element field = (Element) fieldNode;
if ("maxRunningApps".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
int val = Integer.parseInt(text);
userMaxApps.put(userName, val);
}
}
} else if ("queueMaxResourcesDefault".equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
ConfigurableResource val =
FairSchedulerConfiguration.parseResourceConfigValue(text);
queueMaxResourcesDefault = val;
} else if ("userMaxAppsDefault".equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
int val = Integer.parseInt(text);
userMaxAppsDefault = val;
} else if ("defaultFairSharePreemptionTimeout"
.equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
long val = Long.parseLong(text) * 1000L;
defaultFairSharePreemptionTimeout = val;
} else if ("fairSharePreemptionTimeout".equals(element.getTagName())) {
if (defaultFairSharePreemptionTimeout == Long.MAX_VALUE) {
String text = ((Text)element.getFirstChild()).getData().trim();
long val = Long.parseLong(text) * 1000L;
defaultFairSharePreemptionTimeout = val;
}
} else if ("defaultMinSharePreemptionTimeout"
.equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
long val = Long.parseLong(text) * 1000L;
defaultMinSharePreemptionTimeout = val;
} else if ("defaultFairSharePreemptionThreshold"
.equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
float val = Float.parseFloat(text);
val = Math.max(Math.min(val, 1.0f), 0.0f);
defaultFairSharePreemptionThreshold = val;
} else if ("queueMaxAppsDefault".equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
int val = Integer.parseInt(text);
queueMaxAppsDefault = val;
} else if ("queueMaxAMShareDefault".equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
float val = Float.parseFloat(text);
val = Math.min(val, 1.0f);
queueMaxAMShareDefault = val;
} else if ("defaultQueueSchedulingPolicy".equals(element.getTagName())
|| "defaultQueueSchedulingMode".equals(element.getTagName())) {
String text = ((Text)element.getFirstChild()).getData().trim();
if (text.equalsIgnoreCase(FifoPolicy.NAME)) {
throw new AllocationConfigurationException("Bad fair scheduler "
+ "config file: defaultQueueSchedulingPolicy or "
+ "defaultQueueSchedulingMode can't be FIFO.");
}
defaultSchedPolicy = SchedulingPolicy.parse(text);
} else if ("queuePlacementPolicy".equals(element.getTagName())) {
placementPolicyElement = element;
} else if ("reservation-planner".equals(element.getTagName())) {
String text = ((Text) element.getFirstChild()).getData().trim();
planner = text;
} else if ("reservation-agent".equals(element.getTagName())) {
String text = ((Text) element.getFirstChild()).getData().trim();
reservationAgent = text;
} else if ("reservation-policy".equals(element.getTagName())) {
String text = ((Text) element.getFirstChild()).getData().trim();
reservationAdmissionPolicy = text;
} else {
LOG.warn("Bad element in allocations file: " + element.getTagName());
}
}
}
// Load queue elements. A root queue can either be included or omitted. If
// it's included, all other queues must be inside it.
for (Element element : queueElements) {
String parent = "root";
if (element.getAttribute("name").equalsIgnoreCase("root")) {
if (queueElements.size() > 1) {
throw new AllocationConfigurationException("If configuring root queue,"
+ " no other queues can be placed alongside it.");
}
parent = null;
}
loadQueue(parent, element, minQueueResources, maxQueueResources,
maxChildQueueResources, queueMaxApps, userMaxApps, queueMaxAMShares,
queueWeights, queuePolicies, minSharePreemptionTimeouts,
fairSharePreemptionTimeouts, fairSharePreemptionThresholds, queueAcls,
reservationAcls, configuredQueues, reservableQueues,
nonPreemptableQueues);
}
AllocationFileParser allocationFileParser =
new AllocationFileParser(elements);
allocationFileParser.parse();
AllocationFileQueueParser queueParser =
new AllocationFileQueueParser(allocationFileParser.getQueueElements());
QueueProperties queueProperties = queueParser.parse();
// Load placement policy and pass it configured queues
Configuration conf = getConfig();
if (placementPolicyElement != null) {
newPlacementPolicy = QueuePlacementPolicy.fromXml(placementPolicyElement,
configuredQueues, conf);
} else {
newPlacementPolicy = QueuePlacementPolicy.fromConfiguration(conf,
configuredQueues);
}
QueuePlacementPolicy newPlacementPolicy =
getQueuePlacementPolicy(allocationFileParser, queueProperties, conf);
setupRootQueueProperties(allocationFileParser, queueProperties);
// Set the min/fair share preemption timeout for the root queue
if (!minSharePreemptionTimeouts.containsKey(QueueManager.ROOT_QUEUE)){
minSharePreemptionTimeouts.put(QueueManager.ROOT_QUEUE,
defaultMinSharePreemptionTimeout);
}
if (!fairSharePreemptionTimeouts.containsKey(QueueManager.ROOT_QUEUE)) {
fairSharePreemptionTimeouts.put(QueueManager.ROOT_QUEUE,
defaultFairSharePreemptionTimeout);
}
ReservationQueueConfiguration globalReservationQueueConfig =
createReservationQueueConfig(allocationFileParser);
// Set the fair share preemption threshold for the root queue
if (!fairSharePreemptionThresholds.containsKey(QueueManager.ROOT_QUEUE)) {
fairSharePreemptionThresholds.put(QueueManager.ROOT_QUEUE,
defaultFairSharePreemptionThreshold);
}
ReservationQueueConfiguration globalReservationQueueConfig = new
ReservationQueueConfiguration();
if (planner != null) {
globalReservationQueueConfig.setPlanner(planner);
}
if (reservationAdmissionPolicy != null) {
globalReservationQueueConfig.setReservationAdmissionPolicy
(reservationAdmissionPolicy);
}
if (reservationAgent != null) {
globalReservationQueueConfig.setReservationAgent(reservationAgent);
}
AllocationConfiguration info =
new AllocationConfiguration(minQueueResources, maxQueueResources,
maxChildQueueResources, queueMaxApps, userMaxApps, queueWeights,
queueMaxAMShares, userMaxAppsDefault, queueMaxAppsDefault,
queueMaxResourcesDefault, queueMaxAMShareDefault, queuePolicies,
defaultSchedPolicy, minSharePreemptionTimeouts,
fairSharePreemptionTimeouts, fairSharePreemptionThresholds, queueAcls,
reservationAcls, newPlacementPolicy, configuredQueues,
globalReservationQueueConfig, reservableQueues, nonPreemptableQueues);
AllocationConfiguration info = new AllocationConfiguration(queueProperties,
allocationFileParser, newPlacementPolicy, globalReservationQueueConfig);
lastSuccessfulReload = clock.getTime();
lastReloadAttemptFailed = false;
reloadListener.onReload(info);
}
/**
* Loads a queue from a queue element in the configuration file
*/
private void loadQueue(String parentName, Element element,
Map<String, Resource> minQueueResources,
Map<String, ConfigurableResource> maxQueueResources,
Map<String, ConfigurableResource> maxChildQueueResources,
Map<String, Integer> queueMaxApps,
Map<String, Integer> userMaxApps,
Map<String, Float> queueMaxAMShares,
Map<String, Float> queueWeights,
Map<String, SchedulingPolicy> queuePolicies,
Map<String, Long> minSharePreemptionTimeouts,
Map<String, Long> fairSharePreemptionTimeouts,
Map<String, Float> fairSharePreemptionThresholds,
Map<String, Map<AccessType, AccessControlList>> queueAcls,
Map<String, Map<ReservationACL, AccessControlList>> resAcls,
Map<FSQueueType, Set<String>> configuredQueues,
Set<String> reservableQueues,
Set<String> nonPreemptableQueues)
private QueuePlacementPolicy getQueuePlacementPolicy(
AllocationFileParser allocationFileParser,
QueueProperties queueProperties, Configuration conf)
throws AllocationConfigurationException {
String queueName = FairSchedulerUtilities.trimQueueName(
element.getAttribute("name"));
if (queueName.contains(".")) {
throw new AllocationConfigurationException("Bad fair scheduler config "
+ "file: queue name (" + queueName + ") shouldn't contain period.");
}
if (queueName.isEmpty()) {
throw new AllocationConfigurationException("Bad fair scheduler config "
+ "file: queue name shouldn't be empty or "
+ "consist only of whitespace.");
}
if (parentName != null) {
queueName = parentName + "." + queueName;
}
Map<AccessType, AccessControlList> acls = new HashMap<>();
Map<ReservationACL, AccessControlList> racls = new HashMap<>();
NodeList fields = element.getChildNodes();
boolean isLeaf = true;
boolean isReservable = false;
for (int j = 0; j < fields.getLength(); j++) {
Node fieldNode = fields.item(j);
if (!(fieldNode instanceof Element)) {
continue;
}
Element field = (Element) fieldNode;
if ("minResources".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
ConfigurableResource val =
FairSchedulerConfiguration.parseResourceConfigValue(text);
minQueueResources.put(queueName, val.getResource());
} else if ("maxResources".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
ConfigurableResource val =
FairSchedulerConfiguration.parseResourceConfigValue(text);
maxQueueResources.put(queueName, val);
} else if ("maxChildResources".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
ConfigurableResource val =
FairSchedulerConfiguration.parseResourceConfigValue(text);
maxChildQueueResources.put(queueName, val);
} else if ("maxRunningApps".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
int val = Integer.parseInt(text);
queueMaxApps.put(queueName, val);
} else if ("maxAMShare".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
float val = Float.parseFloat(text);
val = Math.min(val, 1.0f);
queueMaxAMShares.put(queueName, val);
} else if ("weight".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
double val = Double.parseDouble(text);
queueWeights.put(queueName, (float)val);
} else if ("minSharePreemptionTimeout".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
long val = Long.parseLong(text) * 1000L;
minSharePreemptionTimeouts.put(queueName, val);
} else if ("fairSharePreemptionTimeout".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
long val = Long.parseLong(text) * 1000L;
fairSharePreemptionTimeouts.put(queueName, val);
} else if ("fairSharePreemptionThreshold".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
float val = Float.parseFloat(text);
val = Math.max(Math.min(val, 1.0f), 0.0f);
fairSharePreemptionThresholds.put(queueName, val);
} else if ("schedulingPolicy".equals(field.getTagName())
|| "schedulingMode".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
SchedulingPolicy policy = SchedulingPolicy.parse(text);
queuePolicies.put(queueName, policy);
} else if ("aclSubmitApps".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData();
acls.put(AccessType.SUBMIT_APP, new AccessControlList(text));
} else if ("aclAdministerApps".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData();
acls.put(AccessType.ADMINISTER_QUEUE, new AccessControlList(text));
} else if ("aclAdministerReservations".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData();
racls.put(ReservationACL.ADMINISTER_RESERVATIONS,
new AccessControlList(text));
} else if ("aclListReservations".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData();
racls.put(ReservationACL.LIST_RESERVATIONS, new AccessControlList(
text));
} else if ("aclSubmitReservations".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData();
racls.put(ReservationACL.SUBMIT_RESERVATIONS,
new AccessControlList(text));
} else if ("reservation".equals(field.getTagName())) {
isReservable = true;
reservableQueues.add(queueName);
configuredQueues.get(FSQueueType.PARENT).add(queueName);
} else if ("allowPreemptionFrom".equals(field.getTagName())) {
String text = ((Text)field.getFirstChild()).getData().trim();
if (!Boolean.parseBoolean(text)) {
nonPreemptableQueues.add(queueName);
}
} else if ("queue".endsWith(field.getTagName()) ||
"pool".equals(field.getTagName())) {
loadQueue(queueName, field, minQueueResources, maxQueueResources,
maxChildQueueResources, queueMaxApps, userMaxApps, queueMaxAMShares,
queueWeights, queuePolicies, minSharePreemptionTimeouts,
fairSharePreemptionTimeouts, fairSharePreemptionThresholds,
queueAcls, resAcls, configuredQueues, reservableQueues,
nonPreemptableQueues);
isLeaf = false;
}
}
// if a leaf in the alloc file is marked as type='parent'
// then store it as a parent queue
if (isLeaf && !"parent".equals(element.getAttribute("type"))) {
configuredQueues.get(FSQueueType.LEAF).add(queueName);
if (allocationFileParser.getQueuePlacementPolicy().isPresent()) {
return QueuePlacementPolicy.fromXml(
allocationFileParser.getQueuePlacementPolicy().get(),
queueProperties.getConfiguredQueues(), conf);
} else {
if (isReservable) {
throw new AllocationConfigurationException("The configuration settings"
+ " for " + queueName + " are invalid. A queue element that "
+ "contains child queue elements or that has the type='parent' "
+ "attribute cannot also include a reservation element.");
}
configuredQueues.get(FSQueueType.PARENT).add(queueName);
return QueuePlacementPolicy.fromConfiguration(conf,
queueProperties.getConfiguredQueues());
}
// Set default acls if not defined
// The root queue defaults to all access
for (QueueACL acl : QueueACL.values()) {
AccessType accessType = SchedulerUtils.toAccessType(acl);
if (acls.get(accessType) == null){
AccessControlList defaultAcl = queueName.equals(ROOT) ?
EVERYBODY_ACL : NOBODY_ACL;
acls.put(accessType, defaultAcl);
}
}
queueAcls.put(queueName, acls);
resAcls.put(queueName, racls);
checkMinAndMaxResource(minQueueResources, maxQueueResources, queueName);
}
private void checkMinAndMaxResource(Map<String, Resource> minResources,
Map<String, ConfigurableResource> maxResources, String queueName) {
ConfigurableResource maxConfigurableResource = maxResources.get(queueName);
Resource minResource = minResources.get(queueName);
if (maxConfigurableResource != null && minResource != null) {
Resource maxResource = maxConfigurableResource.getResource();
// check whether max resource is bigger or equals to min resource when max
// resource are absolute values
if (maxResource != null && !Resources.fitsIn(minResource, maxResource)) {
LOG.warn(String.format("Queue %s has max resources %s less than "
+ "min resources %s", queueName, maxResource, minResource));
}
private void setupRootQueueProperties(
AllocationFileParser allocationFileParser,
QueueProperties queueProperties) {
// Set the min/fair share preemption timeout for the root queue
if (!queueProperties.getMinSharePreemptionTimeouts()
.containsKey(QueueManager.ROOT_QUEUE)) {
queueProperties.getMinSharePreemptionTimeouts().put(
QueueManager.ROOT_QUEUE,
allocationFileParser.getDefaultMinSharePreemptionTimeout());
}
if (!queueProperties.getFairSharePreemptionTimeouts()
.containsKey(QueueManager.ROOT_QUEUE)) {
queueProperties.getFairSharePreemptionTimeouts().put(
QueueManager.ROOT_QUEUE,
allocationFileParser.getDefaultFairSharePreemptionTimeout());
}
// Set the fair share preemption threshold for the root queue
if (!queueProperties.getFairSharePreemptionThresholds()
.containsKey(QueueManager.ROOT_QUEUE)) {
queueProperties.getFairSharePreemptionThresholds().put(
QueueManager.ROOT_QUEUE,
allocationFileParser.getDefaultFairSharePreemptionThreshold());
}
}
private ReservationQueueConfiguration createReservationQueueConfig(
AllocationFileParser allocationFileParser) {
ReservationQueueConfiguration globalReservationQueueConfig =
new ReservationQueueConfiguration();
if (allocationFileParser.getReservationPlanner().isPresent()) {
globalReservationQueueConfig
.setPlanner(allocationFileParser.getReservationPlanner().get());
}
if (allocationFileParser.getReservationAdmissionPolicy().isPresent()) {
globalReservationQueueConfig.setReservationAdmissionPolicy(
allocationFileParser.getReservationAdmissionPolicy().get());
}
if (allocationFileParser.getReservationAgent().isPresent()) {
globalReservationQueueConfig.setReservationAgent(
allocationFileParser.getReservationAgent().get());
}
return globalReservationQueueConfig;
}
/**

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationConfigurationException;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.ConfigurableResource;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairSchedulerConfiguration;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.SchedulingPolicy;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FifoPolicy;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
/**
* Responsible for parsing allocation.xml config file.
* All node's text value is stored to textValues if {@link #VALID_TAG_NAMES}
* contains the tag name.
* Other meaningful fields are also saved in {@link #parse()}.
*/
public class AllocationFileParser {
private static final Logger LOG =
LoggerFactory.getLogger(AllocationFileParser.class);
private static final String QUEUE_MAX_RESOURCES_DEFAULT =
"queueMaxResourcesDefault";
private static final String USER_MAX_APPS_DEFAULT = "userMaxAppsDefault";
private static final String DEFAULT_FAIR_SHARE_PREEMPTION_TIMEOUT =
"defaultFairSharePreemptionTimeout";
private static final String FAIR_SHARE_PREEMPTION_TIMEOUT =
"fairSharePreemptionTimeout";
private static final String DEFAULT_MIN_SHARE_PREEMPTION_TIMEOUT =
"defaultMinSharePreemptionTimeout";
private static final String QUEUE_MAX_APPS_DEFAULT = "queueMaxAppsDefault";
private static final String DEFAULT_FAIR_SHARE_PREEMPTION_THRESHOLD =
"defaultFairSharePreemptionThreshold";
private static final String QUEUE_MAX_AM_SHARE_DEFAULT =
"queueMaxAMShareDefault";
private static final String RESERVATION_PLANNER = "reservation-planner";
private static final String RESERVATION_AGENT = "reservation-agent";
private static final String RESERVATION_ADMISSION_POLICY =
"reservation-policy";
private static final String QUEUE_PLACEMENT_POLICY = "queuePlacementPolicy";
private static final String QUEUE = "queue";
private static final String POOL = "pool";
private static final String USER = "user";
private static final String USERNAME = "name";
private static final String MAX_RUNNING_APPS = "maxRunningApps";
private static final String DEFAULT_QUEUE_SCHEDULING_POLICY =
"defaultQueueSchedulingPolicy";
private static final String DEFAULT_QUEUE_SCHEDULING_MODE =
"defaultQueueSchedulingMode";
private static final Set<String> VALID_TAG_NAMES =
Sets.newHashSet(QUEUE_MAX_RESOURCES_DEFAULT, USER_MAX_APPS_DEFAULT,
DEFAULT_FAIR_SHARE_PREEMPTION_TIMEOUT, FAIR_SHARE_PREEMPTION_TIMEOUT,
DEFAULT_MIN_SHARE_PREEMPTION_TIMEOUT, QUEUE_MAX_APPS_DEFAULT,
DEFAULT_FAIR_SHARE_PREEMPTION_THRESHOLD, QUEUE_MAX_AM_SHARE_DEFAULT,
RESERVATION_PLANNER, RESERVATION_AGENT, RESERVATION_ADMISSION_POLICY,
QUEUE_PLACEMENT_POLICY, QUEUE, POOL, USER,
DEFAULT_QUEUE_SCHEDULING_POLICY, DEFAULT_QUEUE_SCHEDULING_MODE);
private final NodeList elements;
private final Map<String, String> textValues = Maps.newHashMap();
private Element queuePlacementPolicyElement;
private final List<Element> queueElements = new ArrayList<>();
private final Map<String, Integer> userMaxApps = new HashMap<>();
private SchedulingPolicy defaultSchedulingPolicy;
public AllocationFileParser(NodeList elements) {
this.elements = elements;
}
public void parse() throws AllocationConfigurationException {
for (int i = 0; i < elements.getLength(); i++) {
Node node = elements.item(i);
if (node instanceof Element) {
Element element = (Element) node;
final String tagName = element.getTagName();
if (VALID_TAG_NAMES.contains(tagName)) {
if (tagName.equals(QUEUE_PLACEMENT_POLICY)) {
queuePlacementPolicyElement = element;
} else if (isSchedulingPolicy(element)) {
defaultSchedulingPolicy = extractSchedulingPolicy(element);
} else if (isQueue(element)) {
queueElements.add(element);
} else if (tagName.equals(USER)) {
extractUserData(element);
} else {
textValues.put(tagName, getTrimmedTextData(element));
}
} else {
LOG.warn("Bad element in allocations file: " + tagName);
}
}
}
}
private boolean isSchedulingPolicy(Element element) {
return DEFAULT_QUEUE_SCHEDULING_POLICY.equals(element.getTagName())
|| DEFAULT_QUEUE_SCHEDULING_MODE.equals(element.getTagName());
}
private void extractUserData(Element element) {
final String userName = element.getAttribute(USERNAME);
final NodeList fields = element.getChildNodes();
for (int j = 0; j < fields.getLength(); j++) {
final Node fieldNode = fields.item(j);
if (!(fieldNode instanceof Element)) {
continue;
}
final Element field = (Element) fieldNode;
if (MAX_RUNNING_APPS.equals(field.getTagName())) {
final String text = getTrimmedTextData(field);
final int val = Integer.parseInt(text);
userMaxApps.put(userName, val);
}
}
}
private SchedulingPolicy extractSchedulingPolicy(Element element)
throws AllocationConfigurationException {
String text = getTrimmedTextData(element);
if (text.equalsIgnoreCase(FifoPolicy.NAME)) {
throw new AllocationConfigurationException("Bad fair scheduler "
+ "config file: defaultQueueSchedulingPolicy or "
+ "defaultQueueSchedulingMode can't be FIFO.");
}
return SchedulingPolicy.parse(text);
}
private boolean isQueue(Element element) {
return element.getTagName().equals(QUEUE)
|| element.getTagName().equals(POOL);
}
private String getTrimmedTextData(Element element) {
return ((Text) element.getFirstChild()).getData().trim();
}
public ConfigurableResource getQueueMaxResourcesDefault()
throws AllocationConfigurationException {
Optional<String> value = getTextValue(QUEUE_MAX_RESOURCES_DEFAULT);
if (value.isPresent()) {
return FairSchedulerConfiguration.parseResourceConfigValue(value.get());
}
return new ConfigurableResource(Resources.unbounded());
}
public int getUserMaxAppsDefault() {
Optional<String> value = getTextValue(USER_MAX_APPS_DEFAULT);
return value.map(Integer::parseInt).orElse(Integer.MAX_VALUE);
}
public long getDefaultFairSharePreemptionTimeout() {
Optional<String> value = getTextValue(FAIR_SHARE_PREEMPTION_TIMEOUT);
Optional<String> defaultValue =
getTextValue(DEFAULT_FAIR_SHARE_PREEMPTION_TIMEOUT);
if (value.isPresent() && !defaultValue.isPresent()) {
return Long.parseLong(value.get()) * 1000L;
} else if (defaultValue.isPresent()) {
return Long.parseLong(defaultValue.get()) * 1000L;
}
return Long.MAX_VALUE;
}
public long getDefaultMinSharePreemptionTimeout() {
Optional<String> value = getTextValue(DEFAULT_MIN_SHARE_PREEMPTION_TIMEOUT);
return value.map(v -> Long.parseLong(v) * 1000L).orElse(Long.MAX_VALUE);
}
public int getQueueMaxAppsDefault() {
Optional<String> value = getTextValue(QUEUE_MAX_APPS_DEFAULT);
return value.map(Integer::parseInt).orElse(Integer.MAX_VALUE);
}
public float getDefaultFairSharePreemptionThreshold() {
Optional<String> value =
getTextValue(DEFAULT_FAIR_SHARE_PREEMPTION_THRESHOLD);
if (value.isPresent()) {
float floatValue = Float.parseFloat(value.get());
return Math.max(Math.min(floatValue, 1.0f), 0.0f);
}
return 0.5f;
}
public float getQueueMaxAMShareDefault() {
Optional<String> value = getTextValue(QUEUE_MAX_AM_SHARE_DEFAULT);
if (value.isPresent()) {
float val = Float.parseFloat(value.get());
return Math.min(val, 1.0f);
}
return 0.5f;
}
// Reservation global configuration knobs
public Optional<String> getReservationPlanner() {
return getTextValue(RESERVATION_PLANNER);
}
public Optional<String> getReservationAgent() {
return getTextValue(RESERVATION_AGENT);
}
public Optional<String> getReservationAdmissionPolicy() {
return getTextValue(RESERVATION_ADMISSION_POLICY);
}
public Optional<Element> getQueuePlacementPolicy() {
return Optional.ofNullable(queuePlacementPolicyElement);
}
private Optional<String> getTextValue(String key) {
return Optional.ofNullable(textValues.get(key));
}
public List<Element> getQueueElements() {
return queueElements;
}
public Map<String, Integer> getUserMaxApps() {
return userMaxApps;
}
public SchedulingPolicy getDefaultSchedulingPolicy() {
if (defaultSchedulingPolicy != null) {
return defaultSchedulingPolicy;
}
return SchedulingPolicy.DEFAULT_POLICY;
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation;
import org.apache.hadoop.security.authorize.AccessControlList;
import org.apache.hadoop.yarn.api.records.QueueACL;
import org.apache.hadoop.yarn.api.records.ReservationACL;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.security.AccessType;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.*;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import java.util.List;
import java.util.Map;
/**
* Responsible for loading queue configuration properties
* from a list of {@link Element}s containing queues.
*/
public class AllocationFileQueueParser {
private static final Logger LOG =
LoggerFactory.getLogger(AllocationFileQueueParser.class);
public static final String ROOT = "root";
public static final AccessControlList EVERYBODY_ACL =
new AccessControlList("*");
static final AccessControlList NOBODY_ACL = new AccessControlList(" ");
private static final String MIN_RESOURCES = "minResources";
private static final String MAX_RESOURCES = "maxResources";
private static final String MAX_CHILD_RESOURCES = "maxChildResources";
private static final String MAX_RUNNING_APPS = "maxRunningApps";
private static final String MAX_AMSHARE = "maxAMShare";
private static final String WEIGHT = "weight";
private static final String MIN_SHARE_PREEMPTION_TIMEOUT =
"minSharePreemptionTimeout";
private static final String FAIR_SHARE_PREEMPTION_TIMEOUT =
"fairSharePreemptionTimeout";
private static final String FAIR_SHARE_PREEMPTION_THRESHOLD =
"fairSharePreemptionThreshold";
private static final String SCHEDULING_POLICY = "schedulingPolicy";
private static final String SCHEDULING_MODE = "schedulingMode";
private static final String ACL_SUBMIT_APPS = "aclSubmitApps";
private static final String ACL_ADMINISTER_APPS = "aclAdministerApps";
private static final String ACL_ADMINISTER_RESERVATIONS =
"aclAdministerReservations";
private static final String ACL_LIST_RESERVATIONS = "aclListReservations";
private static final String ACL_SUBMIT_RESERVATIONS = "aclSubmitReservations";
private static final String RESERVATION = "reservation";
private static final String ALLOW_PREEMPTION_FROM = "allowPreemptionFrom";
private static final String QUEUE = "queue";
private static final String POOL = "pool";
private final List<Element> elements;
public AllocationFileQueueParser(List<Element> elements) {
this.elements = elements;
}
// Load queue elements. A root queue can either be included or omitted. If
// it's included, all other queues must be inside it.
public QueueProperties parse() throws AllocationConfigurationException {
QueueProperties.Builder queuePropertiesBuilder =
new QueueProperties.Builder();
for (Element element : elements) {
String parent = ROOT;
if (element.getAttribute("name").equalsIgnoreCase(ROOT)) {
if (elements.size() > 1) {
throw new AllocationConfigurationException(
"If configuring root queue,"
+ " no other queues can be placed alongside it.");
}
parent = null;
}
loadQueue(parent, element, queuePropertiesBuilder);
}
return queuePropertiesBuilder.build();
}
/**
* Loads a queue from a queue element in the configuration file.
*/
private void loadQueue(String parentName, Element element,
QueueProperties.Builder builder) throws AllocationConfigurationException {
String queueName =
FairSchedulerUtilities.trimQueueName(element.getAttribute("name"));
if (queueName.contains(".")) {
throw new AllocationConfigurationException("Bad fair scheduler config "
+ "file: queue name (" + queueName + ") shouldn't contain period.");
}
if (queueName.isEmpty()) {
throw new AllocationConfigurationException("Bad fair scheduler config "
+ "file: queue name shouldn't be empty or "
+ "consist only of whitespace.");
}
if (parentName != null) {
queueName = parentName + "." + queueName;
}
NodeList fields = element.getChildNodes();
boolean isLeaf = true;
boolean isReservable = false;
for (int j = 0; j < fields.getLength(); j++) {
Node fieldNode = fields.item(j);
if (!(fieldNode instanceof Element)) {
continue;
}
Element field = (Element) fieldNode;
if (MIN_RESOURCES.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
ConfigurableResource val =
FairSchedulerConfiguration.parseResourceConfigValue(text);
builder.minQueueResources(queueName, val.getResource());
} else if (MAX_RESOURCES.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
ConfigurableResource val =
FairSchedulerConfiguration.parseResourceConfigValue(text);
builder.maxQueueResources(queueName, val);
} else if (MAX_CHILD_RESOURCES.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
ConfigurableResource val =
FairSchedulerConfiguration.parseResourceConfigValue(text);
builder.maxChildQueueResources(queueName, val);
} else if (MAX_RUNNING_APPS.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
int val = Integer.parseInt(text);
builder.queueMaxApps(queueName, val);
} else if (MAX_AMSHARE.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
float val = Float.parseFloat(text);
val = Math.min(val, 1.0f);
builder.queueMaxAMShares(queueName, val);
} else if (WEIGHT.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
double val = Double.parseDouble(text);
builder.queueWeights(queueName, (float) val);
} else if (MIN_SHARE_PREEMPTION_TIMEOUT.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
long val = Long.parseLong(text) * 1000L;
builder.minSharePreemptionTimeouts(queueName, val);
} else if (FAIR_SHARE_PREEMPTION_TIMEOUT.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
long val = Long.parseLong(text) * 1000L;
builder.fairSharePreemptionTimeouts(queueName, val);
} else if (FAIR_SHARE_PREEMPTION_THRESHOLD.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
float val = Float.parseFloat(text);
val = Math.max(Math.min(val, 1.0f), 0.0f);
builder.fairSharePreemptionThresholds(queueName, val);
} else if (SCHEDULING_POLICY.equals(field.getTagName())
|| SCHEDULING_MODE.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
SchedulingPolicy policy = SchedulingPolicy.parse(text);
builder.queuePolicies(queueName, policy);
} else if (ACL_SUBMIT_APPS.equals(field.getTagName())) {
String text = ((Text) field.getFirstChild()).getData();
builder.queueAcls(queueName, AccessType.SUBMIT_APP,
new AccessControlList(text));
} else if (ACL_ADMINISTER_APPS.equals(field.getTagName())) {
String text = ((Text) field.getFirstChild()).getData();
builder.queueAcls(queueName, AccessType.ADMINISTER_QUEUE,
new AccessControlList(text));
} else if (ACL_ADMINISTER_RESERVATIONS.equals(field.getTagName())) {
String text = ((Text) field.getFirstChild()).getData();
builder.reservationAcls(queueName,
ReservationACL.ADMINISTER_RESERVATIONS,
new AccessControlList(text));
} else if (ACL_LIST_RESERVATIONS.equals(field.getTagName())) {
String text = ((Text) field.getFirstChild()).getData();
builder.reservationAcls(queueName, ReservationACL.LIST_RESERVATIONS,
new AccessControlList(text));
} else if (ACL_SUBMIT_RESERVATIONS.equals(field.getTagName())) {
String text = ((Text) field.getFirstChild()).getData();
builder.reservationAcls(queueName, ReservationACL.SUBMIT_RESERVATIONS,
new AccessControlList(text));
} else if (RESERVATION.equals(field.getTagName())) {
isReservable = true;
builder.reservableQueues(queueName);
builder.configuredQueues(FSQueueType.PARENT, queueName);
} else if (ALLOW_PREEMPTION_FROM.equals(field.getTagName())) {
String text = getTrimmedTextData(field);
if (!Boolean.parseBoolean(text)) {
builder.nonPreemptableQueues(queueName);
}
} else if (QUEUE.endsWith(field.getTagName())
|| POOL.equals(field.getTagName())) {
loadQueue(queueName, field, builder);
isLeaf = false;
}
}
// if a leaf in the alloc file is marked as type='parent'
// then store it as a parent queue
if (isLeaf && !"parent".equals(element.getAttribute("type"))) {
builder.configuredQueues(FSQueueType.LEAF, queueName);
} else {
if (isReservable) {
throw new AllocationConfigurationException("The configuration settings"
+ " for " + queueName + " are invalid. A queue element that "
+ "contains child queue elements or that has the type='parent' "
+ "attribute cannot also include a reservation element.");
}
builder.configuredQueues(FSQueueType.PARENT, queueName);
}
// Set default acls if not defined
// The root queue defaults to all access
for (QueueACL acl : QueueACL.values()) {
AccessType accessType = SchedulerUtils.toAccessType(acl);
if (!builder.isAclDefinedForAccessType(queueName, accessType)) {
AccessControlList defaultAcl =
queueName.equals(ROOT) ? EVERYBODY_ACL : NOBODY_ACL;
builder.queueAcls(queueName, accessType, defaultAcl);
}
}
checkMinAndMaxResource(builder.getMinQueueResources(),
builder.getMaxQueueResources(), queueName);
}
private String getTrimmedTextData(Element element) {
return ((Text) element.getFirstChild()).getData().trim();
}
private void checkMinAndMaxResource(Map<String, Resource> minResources,
Map<String, ConfigurableResource> maxResources, String queueName) {
ConfigurableResource maxConfigurableResource = maxResources.get(queueName);
Resource minResource = minResources.get(queueName);
if (maxConfigurableResource != null && minResource != null) {
Resource maxResource = maxConfigurableResource.getResource();
// check whether max resource is greater or equals to min resource when
// max resource are absolute values
if (maxResource != null && !Resources.fitsIn(minResource, maxResource)) {
LOG.warn(String.format(
"Queue %s has max resources %s less than " + "min resources %s",
queueName, maxResource, minResource));
}
}
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocation;
import org.apache.hadoop.security.authorize.AccessControlList;
import org.apache.hadoop.yarn.api.records.ReservationACL;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.security.AccessType;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.ConfigurableResource;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueueType;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.SchedulingPolicy;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* This class is a value class, storing queue properties parsed from the
* allocation.xml config file. Since there are a bunch of properties, properties
* should be added via QueueProperties.Builder.
*/
public class QueueProperties {
// Create some temporary hashmaps to hold the new allocs, and we only save
// them in our fields if we have parsed the entire allocations file
// successfully.
private final Map<String, Resource> minQueueResources;
private final Map<String, ConfigurableResource> maxQueueResources;
private final Map<String, ConfigurableResource> maxChildQueueResources;
private final Map<String, Integer> queueMaxApps;
private final Map<String, Float> queueMaxAMShares;
private final Map<String, Float> queueWeights;
private final Map<String, SchedulingPolicy> queuePolicies;
private final Map<String, Long> minSharePreemptionTimeouts;
private final Map<String, Long> fairSharePreemptionTimeouts;
private final Map<String, Float> fairSharePreemptionThresholds;
private final Map<String, Map<AccessType, AccessControlList>> queueAcls;
private final Map<String, Map<ReservationACL, AccessControlList>>
reservationAcls;
private final Set<String> reservableQueues;
private final Set<String> nonPreemptableQueues;
private final Map<FSQueueType, Set<String>> configuredQueues;
QueueProperties(Builder builder) {
this.reservableQueues = builder.reservableQueues;
this.minQueueResources = builder.minQueueResources;
this.fairSharePreemptionTimeouts = builder.fairSharePreemptionTimeouts;
this.queueWeights = builder.queueWeights;
this.nonPreemptableQueues = builder.nonPreemptableQueues;
this.configuredQueues = builder.configuredQueues;
this.queueMaxAMShares = builder.queueMaxAMShares;
this.queuePolicies = builder.queuePolicies;
this.fairSharePreemptionThresholds = builder.fairSharePreemptionThresholds;
this.queueMaxApps = builder.queueMaxApps;
this.minSharePreemptionTimeouts = builder.minSharePreemptionTimeouts;
this.maxQueueResources = builder.maxQueueResources;
this.maxChildQueueResources = builder.maxChildQueueResources;
this.reservationAcls = builder.reservationAcls;
this.queueAcls = builder.queueAcls;
}
public Map<FSQueueType, Set<String>> getConfiguredQueues() {
return configuredQueues;
}
public Map<String, Long> getMinSharePreemptionTimeouts() {
return minSharePreemptionTimeouts;
}
public Map<String, Long> getFairSharePreemptionTimeouts() {
return fairSharePreemptionTimeouts;
}
public Map<String, Float> getFairSharePreemptionThresholds() {
return fairSharePreemptionThresholds;
}
public Map<String, Resource> getMinQueueResources() {
return minQueueResources;
}
public Map<String, ConfigurableResource> getMaxQueueResources() {
return maxQueueResources;
}
public Map<String, ConfigurableResource> getMaxChildQueueResources() {
return maxChildQueueResources;
}
public Map<String, Integer> getQueueMaxApps() {
return queueMaxApps;
}
public Map<String, Float> getQueueWeights() {
return queueWeights;
}
public Map<String, Float> getQueueMaxAMShares() {
return queueMaxAMShares;
}
public Map<String, SchedulingPolicy> getQueuePolicies() {
return queuePolicies;
}
public Map<String, Map<AccessType, AccessControlList>> getQueueAcls() {
return queueAcls;
}
public Map<String, Map<ReservationACL, AccessControlList>>
getReservationAcls() {
return reservationAcls;
}
public Set<String> getReservableQueues() {
return reservableQueues;
}
public Set<String> getNonPreemptableQueues() {
return nonPreemptableQueues;
}
/**
* Builder class for {@link QueueProperties}.
* All methods are adding queue properties to the maps of this builder
* keyed by the queue's name except some methods
* like {@link #isAclDefinedForAccessType(String, AccessType)} or
* {@link #getMinQueueResources()}.
*
*/
public static final class Builder {
private Map<String, Resource> minQueueResources = new HashMap<>();
private Map<String, ConfigurableResource> maxQueueResources =
new HashMap<>();
private Map<String, ConfigurableResource> maxChildQueueResources =
new HashMap<>();
private Map<String, Integer> queueMaxApps = new HashMap<>();
private Map<String, Float> queueMaxAMShares = new HashMap<>();
private Map<String, Float> queueWeights = new HashMap<>();
private Map<String, SchedulingPolicy> queuePolicies = new HashMap<>();
private Map<String, Long> minSharePreemptionTimeouts = new HashMap<>();
private Map<String, Long> fairSharePreemptionTimeouts = new HashMap<>();
private Map<String, Float> fairSharePreemptionThresholds = new HashMap<>();
private Map<String, Map<AccessType, AccessControlList>> queueAcls =
new HashMap<>();
private Map<String, Map<ReservationACL, AccessControlList>>
reservationAcls = new HashMap<>();
private Set<String> reservableQueues = new HashSet<>();
private Set<String> nonPreemptableQueues = new HashSet<>();
// Remember all queue names so we can display them on web UI, etc.
// configuredQueues is segregated based on whether it is a leaf queue
// or a parent queue. This information is used for creating queues
// and also for making queue placement decisions(QueuePlacementRule.java).
private Map<FSQueueType, Set<String>> configuredQueues = new HashMap<>();
Builder() {
for (FSQueueType queueType : FSQueueType.values()) {
configuredQueues.put(queueType, new HashSet<>());
}
}
public static Builder create() {
return new Builder();
}
public Builder minQueueResources(String queueName, Resource resource) {
this.minQueueResources.put(queueName, resource);
return this;
}
public Builder maxQueueResources(String queueName,
ConfigurableResource resource) {
this.maxQueueResources.put(queueName, resource);
return this;
}
public Builder maxChildQueueResources(String queueName,
ConfigurableResource resource) {
this.maxChildQueueResources.put(queueName, resource);
return this;
}
public Builder queueMaxApps(String queueName, int value) {
this.queueMaxApps.put(queueName, value);
return this;
}
public Builder queueMaxAMShares(String queueName, float value) {
this.queueMaxAMShares.put(queueName, value);
return this;
}
public Builder queueWeights(String queueName, float value) {
this.queueWeights.put(queueName, value);
return this;
}
public Builder queuePolicies(String queueName, SchedulingPolicy policy) {
this.queuePolicies.put(queueName, policy);
return this;
}
public Builder minSharePreemptionTimeouts(String queueName, long value) {
this.minSharePreemptionTimeouts.put(queueName, value);
return this;
}
public Builder fairSharePreemptionTimeouts(String queueName, long value) {
this.fairSharePreemptionTimeouts.put(queueName, value);
return this;
}
public Builder fairSharePreemptionThresholds(String queueName,
float value) {
this.fairSharePreemptionThresholds.put(queueName, value);
return this;
}
public Builder queueAcls(String queueName, AccessType accessType,
AccessControlList acls) {
this.queueAcls.putIfAbsent(queueName, new HashMap<>());
this.queueAcls.get(queueName).put(accessType, acls);
return this;
}
public Builder reservationAcls(String queueName,
ReservationACL reservationACL, AccessControlList acls) {
this.reservationAcls.putIfAbsent(queueName, new HashMap<>());
this.reservationAcls.get(queueName).put(reservationACL, acls);
return this;
}
public Builder reservableQueues(String queue) {
this.reservableQueues.add(queue);
return this;
}
public Builder nonPreemptableQueues(String queue) {
this.nonPreemptableQueues.add(queue);
return this;
}
public void configuredQueues(FSQueueType queueType, String queueName) {
this.configuredQueues.get(queueType).add(queueName);
}
public boolean isAclDefinedForAccessType(String queueName,
AccessType accessType) {
Map<AccessType, AccessControlList> aclsForQueue =
this.queueAcls.get(queueName);
return aclsForQueue != null && aclsForQueue.get(accessType) != null;
}
public Map<String, Resource> getMinQueueResources() {
return minQueueResources;
}
public Map<String, ConfigurableResource> getMaxQueueResources() {
return maxQueueResources;
}
public QueueProperties build() {
return new QueueProperties(this);
}
}
}

187
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestAllocationFileLoaderService.java
View File

@ -27,12 +27,12 @@
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.server.resourcemanager.reservation.ReservationSchedulerConfiguration;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueuePlacementRule.NestedUserQueue;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile.AllocationFileWriter;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.DominantResourceFairnessPolicy;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FairSharePolicy;
import org.apache.hadoop.yarn.util.ControlledClock;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.junit.Test;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
@ -43,7 +43,6 @@
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
@ -51,7 +50,7 @@
import static org.junit.Assert.fail;
public class TestAllocationFileLoaderService {
final static String TEST_DIR = new File(System.getProperty("test.build.data",
"/tmp")).getAbsolutePath();
@ -112,7 +111,7 @@ public void testGetAllocationFileFromClasspath() {
fail("Unable to access allocation file from classpath: " + e);
}
}
@Test (timeout = 10000)
public void testReload() throws Exception {
PrintWriter out = new PrintWriter(new FileWriter(ALLOC_FILE));
@ -127,7 +126,7 @@ public void testReload() throws Exception {
out.println(" </queuePlacementPolicy>");
out.println("</allocations>");
out.close();
ControlledClock clock = new ControlledClock();
clock.setTime(0);
Configuration conf = new Configuration();
@ -141,7 +140,7 @@ public void testReload() throws Exception {
allocLoader.setReloadListener(confHolder);
allocLoader.reloadAllocations();
AllocationConfiguration allocConf = confHolder.allocConf;
// Verify conf
QueuePlacementPolicy policy = allocConf.getPlacementPolicy();
List<QueuePlacementRule> rules = policy.getRules();
@ -154,9 +153,9 @@ public void testReload() throws Exception {
.contains("root.queueA"));
assertTrue(allocConf.getConfiguredQueues().get(FSQueueType.LEAF)
.contains("root.queueB"));
confHolder.allocConf = null;
// Modify file and advance the clock
out = new PrintWriter(new FileWriter(ALLOC_FILE));
out.println("<?xml version=\"1.0\"?>");
@ -166,22 +165,22 @@ public void testReload() throws Exception {
out.println(" </queue>");
out.println(" <queuePlacementPolicy>");
out.println(" <rule name='specified' />");
out.println(" <rule name='nestedUserQueue' >");
out.println(" <rule name='nestedUserQueue' >");
out.println(" <rule name='primaryGroup' />");
out.println(" </rule>");
out.println(" <rule name='default' />");
out.println(" </queuePlacementPolicy>");
out.println("</allocations>");
out.close();
clock.tickMsec(System.currentTimeMillis()
+ AllocationFileLoaderService.ALLOC_RELOAD_WAIT_MS + 10000);
allocLoader.start();
while (confHolder.allocConf == null) {
Thread.sleep(20);
}
// Verify conf
allocConf = confHolder.allocConf;
policy = allocConf.getPlacementPolicy();
@ -199,91 +198,89 @@ public void testReload() throws Exception {
assertTrue(allocConf.getConfiguredQueues().get(FSQueueType.LEAF)
.contains("root.queueB"));
}
@Test
public void testAllocationFileParsing() throws Exception {
Configuration conf = new Configuration();
conf.set(FairSchedulerConfiguration.ALLOCATION_FILE, ALLOC_FILE);
AllocationFileLoaderService allocLoader = new AllocationFileLoaderService();
PrintWriter out = new PrintWriter(new FileWriter(ALLOC_FILE));
out.println("<?xml version=\"1.0\"?>");
out.println("<allocations>");
// Give queue A a minimum of 1024 M
out.println("<queue name=\"queueA\">");
out.println("<minResources>1024mb,0vcores</minResources>");
out.println("<maxResources>2048mb,10vcores</maxResources>");
out.println("</queue>");
// Give queue B a minimum of 2048 M
out.println("<queue name=\"queueB\">");
out.println("<minResources>2048mb,0vcores</minResources>");
out.println("<maxResources>5120mb,110vcores</maxResources>");
out.println("<aclAdministerApps>alice,bob admins</aclAdministerApps>");
out.println("<schedulingPolicy>fair</schedulingPolicy>");
out.println("</queue>");
// Give queue C no minimum
out.println("<queue name=\"queueC\">");
out.println("<minResources>5120mb,0vcores</minResources>");
out.println("<aclSubmitApps>alice,bob admins</aclSubmitApps>");
out.println("</queue>");
// Give queue D a limit of 3 running apps and 0.4f maxAMShare
out.println("<queue name=\"queueD\">");
out.println("<maxRunningApps>3</maxRunningApps>");
out.println("<maxAMShare>0.4</maxAMShare>");
out.println("</queue>");
// Give queue E a preemption timeout of one minute
out.println("<queue name=\"queueE\">");
out.println("<minSharePreemptionTimeout>60</minSharePreemptionTimeout>");
out.println("</queue>");
// Make queue F a parent queue without configured leaf queues using the
// 'type' attribute
out.println("<queue name=\"queueF\" type=\"parent\" >");
out.println("<maxChildResources>2048mb,64vcores</maxChildResources>");
out.println("</queue>");
// Create hierarchical queues G,H, with different min/fair share preemption
// timeouts and preemption thresholds. Also add a child default to make sure
// it doesn't impact queue H.
out.println("<queue name=\"queueG\">");
out.println("<maxChildResources>2048mb,64vcores</maxChildResources>");
out.println("<fairSharePreemptionTimeout>120</fairSharePreemptionTimeout>");
out.println("<minSharePreemptionTimeout>50</minSharePreemptionTimeout>");
out.println("<fairSharePreemptionThreshold>0.6</fairSharePreemptionThreshold>");
out.println(" <queue name=\"queueH\">");
out.println(" <fairSharePreemptionTimeout>180</fairSharePreemptionTimeout>");
out.println(" <minSharePreemptionTimeout>40</minSharePreemptionTimeout>");
out.println(" <fairSharePreemptionThreshold>0.7</fairSharePreemptionThreshold>");
out.println(" </queue>");
out.println("</queue>");
// Set default limit of apps per queue to 15
out.println("<queueMaxAppsDefault>15</queueMaxAppsDefault>");
// Set default limit of max resource per queue to 4G and 100 cores
out.println("<queueMaxResourcesDefault>4096mb,100vcores</queueMaxResourcesDefault>");
// Set default limit of apps per user to 5
out.println("<userMaxAppsDefault>5</userMaxAppsDefault>");
// Set default limit of AMResourceShare to 0.5f
out.println("<queueMaxAMShareDefault>0.5f</queueMaxAMShareDefault>");
// Give user1 a limit of 10 jobs
out.println("<user name=\"user1\">");
out.println("<maxRunningApps>10</maxRunningApps>");
out.println("</user>");
// Set default min share preemption timeout to 2 minutes
out.println("<defaultMinSharePreemptionTimeout>120"
+ "</defaultMinSharePreemptionTimeout>");
// Set default fair share preemption timeout to 5 minutes
out.println("<defaultFairSharePreemptionTimeout>300</defaultFairSharePreemptionTimeout>");
// Set default fair share preemption threshold to 0.4
out.println("<defaultFairSharePreemptionThreshold>0.4</defaultFairSharePreemptionThreshold>");
// Set default scheduling policy to DRF
out.println("<defaultQueueSchedulingPolicy>drf</defaultQueueSchedulingPolicy>");
out.println("</allocations>");
out.close();
AllocationFileWriter
.create()
// Give queue A a minimum of 1024 M
.queue("queueA")
.minResources("1024mb,0vcores")
.maxResources("2048mb,10vcores")
.buildQueue()
// Give queue B a minimum of 2048 M
.queue("queueB")
.minResources("2048mb,0vcores")
.maxResources("5120mb,110vcores")
.aclAdministerApps("alice,bob admins")
.schedulingPolicy("fair")
.buildQueue()
// Give queue C no minimum
.queue("queueC")
.minResources("5120mb,0vcores")
.aclSubmitApps("alice,bob admins")
.buildQueue()
// Give queue D a limit of 3 running apps and 0.4f maxAMShare
.queue("queueD")
.maxRunningApps(3)
.maxAMShare(0.4)
.buildQueue()
// Give queue E a preemption timeout of one minute
.queue("queueE")
.minSharePreemptionTimeout(60)
.buildQueue()
// Make queue F a parent queue without configured leaf queues
// using the 'type' attribute
.queue("queueF")
.parent(true)
.maxChildResources("2048mb,64vcores")
.buildQueue()
.queue("queueG")
.maxChildResources("2048mb,64vcores")
.fairSharePreemptionTimeout(120)
.minSharePreemptionTimeout(50)
.fairSharePreemptionThreshold(0.6)
// Create hierarchical queues G,H, with different min/fair
// share preemption timeouts and preemption thresholds.
// Also add a child default to make sure it doesn't impact queue H.
.subQueue("queueH")
.fairSharePreemptionTimeout(180)
.minSharePreemptionTimeout(40)
.fairSharePreemptionThreshold(0.7)
.buildSubQueue()
.buildQueue()
// Set default limit of apps per queue to 15
.queueMaxAppsDefault(15)
// Set default limit of max resource per queue to 4G and 100 cores
.queueMaxResourcesDefault("4096mb,100vcores")
// Set default limit of apps per user to 5
.userMaxAppsDefault(5)
// Set default limit of AMResourceShare to 0.5f
.queueMaxAMShareDefault(0.5)
// Set default min share preemption timeout to 2 minutes
.defaultMinSharePreemptionTimeout(120)
// Set default fair share preemption timeout to 5 minutes
.defaultFairSharePreemptionTimeout(300)
// Set default fair share preemption threshold to 0.4
.defaultFairSharePreemptionThreshold(0.4)
// Set default scheduling policy to DRF
.defaultQueueSchedulingPolicy("drf")
// Give user1 a limit of 10 jobs
.userSettings("user1")
.maxRunningApps(10)
.build()
.writeToFile(ALLOC_FILE);
allocLoader.init(conf);
ReloadListener confHolder = new ReloadListener();
allocLoader.setReloadListener(confHolder);
allocLoader.reloadAllocations();
AllocationConfiguration queueConf = confHolder.allocConf;
assertEquals(6, queueConf.getConfiguredQueues().get(FSQueueType.LEAF).size());
assertEquals(Resources.createResource(0),
queueConf.getMinResources("root." + YarnConfiguration.DEFAULT_QUEUE_NAME));
@ -443,7 +440,7 @@ public void testAllocationFileParsing() throws Exception {
assertEquals(DominantResourceFairnessPolicy.NAME,
queueConf.getSchedulingPolicy("root.newqueue").getName());
}
@Test
public void testBackwardsCompatibleAllocationFileParsing() throws Exception {
Configuration conf = new Configuration();
@ -492,7 +489,7 @@ public void testBackwardsCompatibleAllocationFileParsing() throws Exception {
out.println("<defaultFairSharePreemptionThreshold>0.6</defaultFairSharePreemptionThreshold>");
out.println("</allocations>");
out.close();
allocLoader.init(conf);
ReloadListener confHolder = new ReloadListener();
allocLoader.setReloadListener(confHolder);
@ -571,27 +568,27 @@ public void testBackwardsCompatibleAllocationFileParsing() throws Exception {
assertEquals(.3f,
queueConf.getFairSharePreemptionThreshold("root.queueE"), 0.01);
}
@Test
public void testSimplePlacementPolicyFromConf() throws Exception {
Configuration conf = new Configuration();
conf.set(FairSchedulerConfiguration.ALLOCATION_FILE, ALLOC_FILE);
conf.setBoolean(FairSchedulerConfiguration.ALLOW_UNDECLARED_POOLS, false);
conf.setBoolean(FairSchedulerConfiguration.USER_AS_DEFAULT_QUEUE, false);
PrintWriter out = new PrintWriter(new FileWriter(ALLOC_FILE));
out.println("<?xml version=\"1.0\"?>");
out.println("<allocations>");
out.println("</allocations>");
out.close();
AllocationFileLoaderService allocLoader = new AllocationFileLoaderService();
allocLoader.init(conf);
ReloadListener confHolder = new ReloadListener();
allocLoader.setReloadListener(confHolder);
allocLoader.reloadAllocations();
AllocationConfiguration allocConf = confHolder.allocConf;
QueuePlacementPolicy placementPolicy = allocConf.getPlacementPolicy();
List<QueuePlacementRule> rules = placementPolicy.getRules();
assertEquals(2, rules.size());
@ -599,7 +596,7 @@ public void testSimplePlacementPolicyFromConf() throws Exception {
assertEquals(false, rules.get(0).create);
assertEquals(QueuePlacementRule.Default.class, rules.get(1).getClass());
}
/**
* Verify that you can't place queues at the same level as the root queue in
* the allocations file.
@ -618,7 +615,7 @@ public void testQueueAlongsideRoot() throws Exception {
out.println("</queue>");
out.println("</allocations>");
out.close();
AllocationFileLoaderService allocLoader = new AllocationFileLoaderService();
allocLoader.init(conf);
ReloadListener confHolder = new ReloadListener();
@ -890,7 +887,7 @@ public void testReservableCannotBeCombinedWithDynamicUserQueue()
private class ReloadListener implements AllocationFileLoaderService.Listener {
public AllocationConfiguration allocConf;
@Override
public void onReload(AllocationConfiguration info) {
allocConf = info;

82
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/allocationfile/AllocationFileQueue.java Normal file
View File

@ -0,0 +1,82 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.List;
class AllocationFileQueue {
private final AllocationFileQueueProperties properties;
private final List<AllocationFileQueue> subQueues;
AllocationFileQueue(AllocationFileQueueProperties properties,
List<AllocationFileQueue> subQueues) {
this.properties = properties;
this.subQueues = subQueues;
}
String render() {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
printStartTag(pw);
AllocationFileWriter.printQueues(pw, subQueues);
AllocationFileWriter.addIfPresent(pw, "minResources",
properties::getMinResources);
AllocationFileWriter.addIfPresent(pw, "maxResources",
properties::getMaxResources);
AllocationFileWriter.addIfPresent(pw, "aclAdministerApps",
properties::getAclAdministerApps);
AllocationFileWriter.addIfPresent(pw, "aclSubmitApps",
properties::getAclSubmitApps);
AllocationFileWriter.addIfPresent(pw, "schedulingPolicy",
properties::getSchedulingPolicy);
AllocationFileWriter.addIfPresent(pw, "maxRunningApps",
() -> AllocationFileWriter
.createNumberSupplier(properties.getMaxRunningApps()));
AllocationFileWriter.addIfPresent(pw, "maxAMShare",
() -> AllocationFileWriter.createNumberSupplier(properties
.getMaxAMShare()));
AllocationFileWriter.addIfPresent(pw, "minSharePreemptionTimeout",
() -> AllocationFileWriter
.createNumberSupplier(properties.getMinSharePreemptionTimeout()));
AllocationFileWriter.addIfPresent(pw, "maxChildResources",
properties::getMaxChildResources);
AllocationFileWriter.addIfPresent(pw, "fairSharePreemptionTimeout",
() -> AllocationFileWriter
.createNumberSupplier(properties.getFairSharePreemptionTimeout()));
AllocationFileWriter.addIfPresent(pw, "fairSharePreemptionThreshold",
() -> AllocationFileWriter
.createNumberSupplier(
properties.getFairSharePreemptionThreshold()));
printEndTag(pw);
pw.close();
return sw.toString();
}
private void printStartTag(PrintWriter pw) {
pw.print("<queue name=\"" + properties.getQueueName() + "\" ");
if (properties.getParent()) {
pw.print("type=\"parent\"");
}
pw.println(">");
}
private void printEndTag(PrintWriter pw) {
pw.println("</queue>");
}
}

115
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/allocationfile/AllocationFileQueueBuilder.java Normal file
View File

@ -0,0 +1,115 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile;
/**
* Abstract base class for building simple queues and subqueues for testcases.
* Currently there are two concrete types subclassed from this class:
* {@link AllocationFileSimpleQueueBuilder} and
* {@link AllocationFileSubQueueBuilder}.
* The intention of having this class to group the common properties of
* simple queues and subqueues by methods delegating calls to a
* queuePropertiesBuilder instance.
*/
public abstract class AllocationFileQueueBuilder {
final AllocationFileQueueProperties.Builder queuePropertiesBuilder;
AllocationFileQueueBuilder() {
this.queuePropertiesBuilder =
AllocationFileQueueProperties.Builder.create();
}
public AllocationFileQueueBuilder parent(boolean parent) {
this.queuePropertiesBuilder.parent(parent);
return this;
}
public AllocationFileQueueBuilder minResources(String value) {
this.queuePropertiesBuilder.minResources(value);
return this;
}
public AllocationFileQueueBuilder maxResources(String value) {
this.queuePropertiesBuilder.maxResources(value);
return this;
}
public AllocationFileQueueBuilder aclAdministerApps(String value) {
this.queuePropertiesBuilder.aclAdministerApps(value);
return this;
}
public AllocationFileQueueBuilder aclSubmitApps(String value) {
this.queuePropertiesBuilder.aclSubmitApps(value);
return this;
}
public AllocationFileQueueBuilder schedulingPolicy(String value) {
this.queuePropertiesBuilder.schedulingPolicy(value);
return this;
}
public AllocationFileQueueBuilder maxRunningApps(int value) {
this.queuePropertiesBuilder.maxRunningApps(value);
return this;
}
public AllocationFileQueueBuilder maxAMShare(double value) {
this.queuePropertiesBuilder.maxAMShare(value);
return this;
}
public AllocationFileQueueBuilder minSharePreemptionTimeout(int value) {
this.queuePropertiesBuilder.minSharePreemptionTimeout(value);
return this;
}
public AllocationFileQueueBuilder maxChildResources(String value) {
this.queuePropertiesBuilder.maxChildResources(value);
return this;
}
public AllocationFileQueueBuilder fairSharePreemptionTimeout(Integer value) {
this.queuePropertiesBuilder.fairSharePreemptionTimeout(value);
return this;
}
public AllocationFileQueueBuilder fairSharePreemptionThreshold(
double value) {
this.queuePropertiesBuilder.fairSharePreemptionThreshold(value);
return this;
}
public AllocationFileQueueBuilder subQueue(String queueName) {
if (this instanceof AllocationFileSimpleQueueBuilder) {
return new AllocationFileSubQueueBuilder(
(AllocationFileSimpleQueueBuilder) this, queueName);
} else {
throw new IllegalStateException(
"subQueue can only be invoked on instances of "
+ AllocationFileSimpleQueueBuilder.class);
}
}
public abstract AllocationFileWriter buildQueue();
public abstract AllocationFileSimpleQueueBuilder buildSubQueue();
AllocationFileQueueProperties.Builder getqueuePropertiesBuilder() {
return queuePropertiesBuilder;
}
}

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/allocationfile/AllocationFileQueueProperties.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile;
/**
* The purpose of this class is to store all properties of a queue.
*/
public class AllocationFileQueueProperties {
private final String queueName;
private final String minResources;
private final String maxResources;
private final String aclAdministerApps;
private final String aclSubmitApps;
private final String schedulingPolicy;
private final Integer maxRunningApps;
private final Double maxAMShare;
private final Integer minSharePreemptionTimeout;
private final Boolean parent;
private final String maxChildResources;
private final Integer fairSharePreemptionTimeout;
private final Double fairSharePreemptionThreshold;
AllocationFileQueueProperties(Builder builder) {
this.queueName = builder.queueName;
this.parent = builder.parent;
this.minResources = builder.minResources;
this.maxResources = builder.maxResources;
this.aclAdministerApps = builder.aclAdministerApps;
this.aclSubmitApps = builder.aclSubmitApps;
this.schedulingPolicy = builder.schedulingPolicy;
this.maxRunningApps = builder.maxRunningApps;
this.maxAMShare = builder.maxAMShare;
this.minSharePreemptionTimeout = builder.minSharePreemptionTimeout;
this.maxChildResources = builder.maxChildResources;
this.fairSharePreemptionTimeout = builder.fairSharePreemptionTimeout;
this.fairSharePreemptionThreshold = builder.fairSharePreemptionThreshold;
}
public String getQueueName() {
return queueName;
}
public String getMinResources() {
return minResources;
}
public String getMaxResources() {
return maxResources;
}
public String getAclAdministerApps() {
return aclAdministerApps;
}
public String getAclSubmitApps() {
return aclSubmitApps;
}
public String getSchedulingPolicy() {
return schedulingPolicy;
}
public Integer getMaxRunningApps() {
return maxRunningApps;
}
public Double getMaxAMShare() {
return maxAMShare;
}
public Integer getMinSharePreemptionTimeout() {
return minSharePreemptionTimeout;
}
public Boolean getParent() {
return parent;
}
public String getMaxChildResources() {
return maxChildResources;
}
public Integer getFairSharePreemptionTimeout() {
return fairSharePreemptionTimeout;
}
public Double getFairSharePreemptionThreshold() {
return fairSharePreemptionThreshold;
}
/**
* Builder class for {@link AllocationFileQueueProperties}.
*/
public static final class Builder {
private String queueName;
private Boolean parent = false;
private String minResources;
private String maxResources;
private String aclAdministerApps;
private String aclSubmitApps;
private String schedulingPolicy;
private Integer maxRunningApps;
private Double maxAMShare;
private Integer minSharePreemptionTimeout;
private String maxChildResources;
private Integer fairSharePreemptionTimeout;
private Double fairSharePreemptionThreshold;
Builder() {
}
public static Builder create() {
return new Builder();
}
public Builder queueName(String queueName) {
this.queueName = queueName;
return this;
}
public Builder minResources(String minResources) {
this.minResources = minResources;
return this;
}
public Builder maxResources(String maxResources) {
this.maxResources = maxResources;
return this;
}
public Builder aclAdministerApps(String aclAdministerApps) {
this.aclAdministerApps = aclAdministerApps;
return this;
}
public Builder aclSubmitApps(String aclSubmitApps) {
this.aclSubmitApps = aclSubmitApps;
return this;
}
public Builder schedulingPolicy(String schedulingPolicy) {
this.schedulingPolicy = schedulingPolicy;
return this;
}
public Builder maxRunningApps(Integer maxRunningApps) {
this.maxRunningApps = maxRunningApps;
return this;
}
public Builder maxAMShare(Double maxAMShare) {
this.maxAMShare = maxAMShare;
return this;
}
public Builder minSharePreemptionTimeout(
Integer minSharePreemptionTimeout) {
this.minSharePreemptionTimeout = minSharePreemptionTimeout;
return this;
}
public Builder parent(Boolean parent) {
this.parent = parent;
return this;
}
public Builder maxChildResources(String maxChildResources) {
this.maxChildResources = maxChildResources;
return this;
}
public Builder fairSharePreemptionTimeout(
Integer fairSharePreemptionTimeout) {
this.fairSharePreemptionTimeout = fairSharePreemptionTimeout;
return this;
}
public Builder fairSharePreemptionThreshold(
Double fairSharePreemptionThreshold) {
this.fairSharePreemptionThreshold = fairSharePreemptionThreshold;
return this;
}
public AllocationFileQueueProperties build() {
return new AllocationFileQueueProperties(this);
}
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile;
import java.util.ArrayList;
import java.util.List;
/**
* Queue builder that can build a simple queue with its properties.
* Subqueues can be added with {@link #addSubQueue(AllocationFileQueue)}.
*/
public class AllocationFileSimpleQueueBuilder
extends AllocationFileQueueBuilder {
private final AllocationFileWriter allocationFileWriter;
private final List<AllocationFileQueue> subQueues = new ArrayList<>();
AllocationFileSimpleQueueBuilder(AllocationFileWriter allocationFileWriter,
String queueName) {
this.allocationFileWriter = allocationFileWriter;
getqueuePropertiesBuilder().queueName(queueName);
}
void addSubQueue(AllocationFileQueue queue) {
subQueues.add(queue);
}
@Override
public AllocationFileWriter buildQueue() {
AllocationFileQueueProperties queueProperties =
getqueuePropertiesBuilder().build();
AllocationFileQueue queue =
new AllocationFileQueue(queueProperties, subQueues);
if (allocationFileWriter != null) {
allocationFileWriter.addQueue(queue);
} else {
throw new IllegalStateException(
"allocationFileWriter field has to be set on a " + getClass());
}
return allocationFileWriter;
}
@Override
public AllocationFileSimpleQueueBuilder buildSubQueue() {
throw new IllegalStateException(
"buildSubQueue is not supported in " + getClass());
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile;
import com.google.common.collect.Lists;
/**
* Queue builder that can build a subqueue with its properties.
*/
public class AllocationFileSubQueueBuilder extends AllocationFileQueueBuilder {
private AllocationFileSimpleQueueBuilder parentQueueBuilder;
AllocationFileSubQueueBuilder(
AllocationFileSimpleQueueBuilder parentQueueBuilder, String queueName) {
getqueuePropertiesBuilder().queueName(queueName);
this.parentQueueBuilder = parentQueueBuilder;
}
@Override
public AllocationFileWriter buildQueue() {
throw new IllegalStateException(
"BuildQueue is not supported in " + getClass());
}
public AllocationFileSimpleQueueBuilder buildSubQueue() {
AllocationFileQueueProperties queueProperties =
getqueuePropertiesBuilder().build();
AllocationFileQueue queue =
new AllocationFileQueue(queueProperties, Lists.newArrayList());
if (parentQueueBuilder != null) {
parentQueueBuilder.addSubQueue(queue);
return parentQueueBuilder;
} else {
throw new IllegalStateException(
"parentQueueBuilder field has to be set on a " + getClass());
}
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Supplier;
/**
* This class is capable of serializing allocation file data to a file
* in XML format.
* See {@link #writeToFile(String)} method for the implementation.
*/
public final class AllocationFileWriter {
private Integer queueMaxAppsDefault;
private String queueMaxResourcesDefault;
private Integer userMaxAppsDefault;
private Double queueMaxAMShareDefault;
private Integer defaultMinSharePreemptionTimeout;
private Integer defaultFairSharePreemptionTimeout;
private Double defaultFairSharePreemptionThreshold;
private String defaultQueueSchedulingPolicy;
private List<AllocationFileQueue> queues = new ArrayList<>();
private UserSettings userSettings;
private AllocationFileWriter() {
}
public static AllocationFileWriter create() {
return new AllocationFileWriter();
}
public AllocationFileSimpleQueueBuilder queue(String queueName) {
return new AllocationFileSimpleQueueBuilder(this, queueName);
}
public AllocationFileWriter queueMaxAppsDefault(int value) {
this.queueMaxAppsDefault = value;
return this;
}
public AllocationFileWriter queueMaxResourcesDefault(String value) {
this.queueMaxResourcesDefault = value;
return this;
}
public AllocationFileWriter userMaxAppsDefault(int value) {
this.userMaxAppsDefault = value;
return this;
}
public AllocationFileWriter queueMaxAMShareDefault(double value) {
this.queueMaxAMShareDefault = value;
return this;
}
public AllocationFileWriter defaultMinSharePreemptionTimeout(int value) {
this.defaultMinSharePreemptionTimeout = value;
return this;
}
public AllocationFileWriter defaultFairSharePreemptionTimeout(int value) {
this.defaultFairSharePreemptionTimeout = value;
return this;
}
public AllocationFileWriter defaultFairSharePreemptionThreshold(
double value) {
this.defaultFairSharePreemptionThreshold = value;
return this;
}
public AllocationFileWriter defaultQueueSchedulingPolicy(String value) {
this.defaultQueueSchedulingPolicy = value;
return this;
}
public UserSettings.Builder userSettings(String username) {
return new UserSettings.Builder(this, username);
}
void addQueue(AllocationFileQueue queue) {
this.queues.add(queue);
}
void setUserSettings(UserSettings userSettings) {
this.userSettings = userSettings;
}
static void printQueues(PrintWriter pw, List<AllocationFileQueue> queues) {
for (AllocationFileQueue queue : queues) {
pw.println(queue.render());
}
}
private void printUserSettings(PrintWriter pw) {
pw.println(userSettings.render());
}
static void addIfPresent(PrintWriter pw, String tag,
Supplier<String> supplier) {
if (supplier.get() != null) {
pw.println("<" + tag + ">" + supplier.get() + "</" + tag + ">");
}
}
static String createNumberSupplier(Object number) {
if (number != null) {
return number.toString();
}
return null;
}
private void writeHeader(PrintWriter pw) {
pw.println("<?xml version=\"1.0\"?>");
pw.println("<allocations>");
}
private void writeFooter(PrintWriter pw) {
pw.println("</allocations>");
}
public void writeToFile(String filename) {
PrintWriter pw;
try {
pw = new PrintWriter(new FileWriter(filename));
} catch (IOException e) {
throw new RuntimeException(e);
}
writeHeader(pw);
if (!queues.isEmpty()) {
printQueues(pw, queues);
}
if (userSettings != null) {
printUserSettings(pw);
}
addIfPresent(pw, "queueMaxAppsDefault",
() -> createNumberSupplier(queueMaxAppsDefault));
addIfPresent(pw, "queueMaxResourcesDefault",
() -> queueMaxResourcesDefault);
addIfPresent(pw, "userMaxAppsDefault",
() -> createNumberSupplier(userMaxAppsDefault));
addIfPresent(pw, "queueMaxAMShareDefault",
() -> createNumberSupplier(queueMaxAMShareDefault));
addIfPresent(pw, "defaultMinSharePreemptionTimeout",
() -> createNumberSupplier(defaultMinSharePreemptionTimeout));
addIfPresent(pw, "defaultFairSharePreemptionTimeout",
() -> createNumberSupplier(defaultFairSharePreemptionTimeout));
addIfPresent(pw, "defaultFairSharePreemptionThreshold",
() -> createNumberSupplier(defaultFairSharePreemptionThreshold));
addIfPresent(pw, "defaultQueueSchedulingPolicy",
() -> defaultQueueSchedulingPolicy);
writeFooter(pw);
pw.close();
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.allocationfile;
import java.io.PrintWriter;
import java.io.StringWriter;
/**
* Value class that stores user settings and can render data in XML format,
* see {@link #render()}.
*/
class UserSettings {
private final String username;
private final Integer maxRunningApps;
UserSettings(Builder builder) {
this.username = builder.username;
this.maxRunningApps = builder.maxRunningApps;
}
public String render() {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
addStartTag(pw);
AllocationFileWriter.addIfPresent(pw, "maxRunningApps",
() -> AllocationFileWriter.createNumberSupplier(maxRunningApps));
addEndTag(pw);
pw.close();
return sw.toString();
}
private void addStartTag(PrintWriter pw) {
pw.println("<user name=\"" + username + "\">");
}
private void addEndTag(PrintWriter pw) {
pw.println("</user>");
}
/**
* Builder class for {@link UserSettings}
*/
public static class Builder {
private final AllocationFileWriter allocationFileWriter;
private final String username;
private Integer maxRunningApps;
Builder(AllocationFileWriter allocationFileWriter, String username) {
this.allocationFileWriter = allocationFileWriter;
this.username = username;
}
public Builder maxRunningApps(int value) {
this.maxRunningApps = value;
return this;
}
public AllocationFileWriter build() {
UserSettings userSettings = new UserSettings(this);
allocationFileWriter.setUserSettings(userSettings);
return allocationFileWriter;
}
}
}