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YARN-8081. Add support to upgrade a component.

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Contributed by Chandni Singh
This commit is contained in:
Eric Yang 2018-05-15 20:40:39 -04:00
parent 63480976a0
commit 8d3b39de89
14 changed files with 368 additions and 45 deletions
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49
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/main/java/org/apache/hadoop/yarn/service/client/ApiServiceClient.java
View File

@ -41,6 +41,7 @@
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.service.api.records.Component;
import org.apache.hadoop.yarn.service.api.records.ComponentState;
import org.apache.hadoop.yarn.service.api.records.Container;
import org.apache.hadoop.yarn.service.api.records.ContainerState;
import org.apache.hadoop.yarn.service.api.records.Service;
@ -170,6 +171,22 @@ private String getInstancesPath(String appName) throws IOException {
return api.toString();
}
private String getComponentsPath(String appName) throws IOException {
Preconditions.checkNotNull(appName);
String url = getRMWebAddress();
StringBuilder api = new StringBuilder();
api.append(url);
api.append("/app/v1/services/").append(appName).append("/")
.append(RestApiConstants.COMPONENTS);
Configuration conf = getConfig();
if (conf.get("hadoop.http.authentication.type").equalsIgnoreCase(
"simple")) {
api.append("?user.name=" + UrlEncoded
.encodeString(System.getProperty("user.name")));
}
return api.toString();
}
private Builder getApiClient() throws IOException {
return getApiClient(getServicePath(null));
}
@ -536,7 +553,7 @@ public int actionUpgradeInstances(String appName, List<String> compInstances)
container.setState(ContainerState.UPGRADING);
toUpgrade[idx++] = container;
}
String buffer = containerJsonSerde.toJson(toUpgrade);
String buffer = CONTAINER_JSON_SERDE.toJson(toUpgrade);
ClientResponse response = getApiClient(getInstancesPath(appName))
.put(ClientResponse.class, buffer);
result = processResponse(response);
@ -547,7 +564,35 @@ public int actionUpgradeInstances(String appName, List<String> compInstances)
return result;
}
private static JsonSerDeser<Container[]> containerJsonSerde =
@Override
public int actionUpgradeComponents(String appName, List<String> components)
throws IOException, YarnException {
int result;
Component[] toUpgrade = new Component[components.size()];
try {
int idx = 0;
for (String compName : components) {
Component component = new Component();
component.setName(compName);
component.setState(ComponentState.UPGRADING);
toUpgrade[idx++] = component;
}
String buffer = COMP_JSON_SERDE.toJson(toUpgrade);
ClientResponse response = getApiClient(getComponentsPath(appName))
.put(ClientResponse.class, buffer);
result = processResponse(response);
} catch (Exception e) {
LOG.error("Failed to upgrade components: ", e);
result = EXIT_EXCEPTION_THROWN;
}
return result;
}
private static final JsonSerDeser<Container[]> CONTAINER_JSON_SERDE =
new JsonSerDeser<>(Container[].class,
PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES);
private static final JsonSerDeser<Component[]> COMP_JSON_SERDE =
new JsonSerDeser<>(Component[].class,
PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES);
}

114
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/main/java/org/apache/hadoop/yarn/service/webapp/ApiServer.java
View File

@ -17,7 +17,9 @@
package org.apache.hadoop.yarn.service.webapp;
import com.google.common.base.Joiner;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.google.inject.Inject;
import com.google.inject.Singleton;
@ -29,6 +31,7 @@
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.service.api.records.Component;
import org.apache.hadoop.yarn.service.api.records.ComponentState;
import org.apache.hadoop.yarn.service.api.records.Container;
import org.apache.hadoop.yarn.service.api.records.ContainerState;
import org.apache.hadoop.yarn.service.api.records.Service;
@ -61,8 +64,10 @@
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import static org.apache.hadoop.yarn.service.api.records.ServiceState.ACCEPTED;
@ -306,6 +311,42 @@ public Integer run() throws Exception {
return formatResponse(Status.OK, serviceStatus);
}
@PUT
@Path(COMPONENTS_PATH)
@Consumes({MediaType.APPLICATION_JSON})
@Produces({RestApiConstants.MEDIA_TYPE_JSON_UTF8, MediaType.TEXT_PLAIN})
public Response updateComponents(@Context HttpServletRequest request,
@PathParam(SERVICE_NAME) String serviceName,
List<Component> requestComponents) {
try {
if (requestComponents == null || requestComponents.isEmpty()) {
throw new YarnException("No components provided.");
}
UserGroupInformation ugi = getProxyUser(request);
Set<String> compNamesToUpgrade = new HashSet<>();
requestComponents.forEach(reqComp -> {
if (reqComp.getState() != null &&
reqComp.getState().equals(ComponentState.UPGRADING)) {
compNamesToUpgrade.add(reqComp.getName());
}
});
LOG.info("PUT: upgrade components {} for service {} " +
"user = {}", compNamesToUpgrade, serviceName, ugi);
return processComponentsUpgrade(ugi, serviceName, compNamesToUpgrade);
} catch (AccessControlException e) {
return formatResponse(Response.Status.FORBIDDEN, e.getMessage());
} catch (YarnException e) {
return formatResponse(Response.Status.BAD_REQUEST, e.getMessage());
} catch (IOException | InterruptedException e) {
return formatResponse(Response.Status.INTERNAL_SERVER_ERROR,
e.getMessage());
} catch (UndeclaredThrowableException e) {
return formatResponse(Response.Status.INTERNAL_SERVER_ERROR,
e.getCause().getMessage());
}
}
@PUT
@Path(COMPONENT_PATH)
@Consumes({ MediaType.APPLICATION_JSON })
@ -326,6 +367,15 @@ public Response updateComponent(@Context HttpServletRequest request,
+ componentName + ")";
throw new YarnException(msg);
}
UserGroupInformation ugi = getProxyUser(request);
if (component.getState() != null &&
component.getState().equals(ComponentState.UPGRADING)) {
LOG.info("PUT: upgrade component {} for service {} " +
"user = {}", component.getName(), appName, ugi);
return processComponentsUpgrade(ugi, appName,
Sets.newHashSet(componentName));
}
if (component.getNumberOfContainers() == null) {
throw new YarnException("No container count provided");
}
@ -334,7 +384,6 @@ public Response updateComponent(@Context HttpServletRequest request,
+ component.getNumberOfContainers();
throw new YarnException(message);
}
UserGroupInformation ugi = getProxyUser(request);
Map<String, Long> original = ugi
.doAs(new PrivilegedExceptionAction<Map<String, Long>>() {
@Override
@ -472,7 +521,7 @@ public Response updateComponentInstance(@Context HttpServletRequest request,
if (reqContainer.getState() != null
&& reqContainer.getState().equals(ContainerState.UPGRADING)) {
return processContainerUpgrade(ugi, service,
return processContainersUpgrade(ugi, service,
Lists.newArrayList(liveContainer));
}
} catch (AccessControlException e) {
@ -517,7 +566,7 @@ public Response updateComponentInstances(@Context HttpServletRequest request,
List<Container> liveContainers = ServiceApiUtil
.getLiveContainers(service, toUpgrade);
return processContainerUpgrade(ugi, service, liveContainers);
return processContainersUpgrade(ugi, service, liveContainers);
}
} catch (AccessControlException e) {
return formatResponse(Response.Status.FORBIDDEN, e.getMessage());
@ -629,7 +678,29 @@ private Response upgradeService(Service service,
return formatResponse(Status.ACCEPTED, status);
}
private Response processContainerUpgrade(UserGroupInformation ugi,
private Response processComponentsUpgrade(UserGroupInformation ugi,
String serviceName, Set<String> compNames) throws YarnException,
IOException, InterruptedException {
Service service = getServiceFromClient(ugi, serviceName);
if (service.getState() != ServiceState.UPGRADING) {
throw new YarnException(
String.format("The upgrade of service %s has not been initiated.",
service.getName()));
}
List<Container> containersToUpgrade = ServiceApiUtil
.validateAndResolveCompsUpgrade(service, compNames);
Integer result = invokeContainersUpgrade(ugi, service, containersToUpgrade);
if (result == EXIT_SUCCESS) {
ServiceStatus status = new ServiceStatus();
status.setDiagnostics(
"Upgrading components " + Joiner.on(',').join(compNames) + ".");
return formatResponse(Response.Status.ACCEPTED, status);
}
// If result is not a success, consider it a no-op
return Response.status(Response.Status.NO_CONTENT).build();
}
private Response processContainersUpgrade(UserGroupInformation ugi,
Service service, List<Container> containers) throws YarnException,
IOException, InterruptedException {
@ -638,25 +709,8 @@ private Response processContainerUpgrade(UserGroupInformation ugi,
String.format("The upgrade of service %s has not been initiated.",
service.getName()));
}
for (Container liveContainer : containers) {
if (liveContainer.getState() != ContainerState.NEEDS_UPGRADE) {
// Nothing to upgrade
throw new YarnException(String.format(
"The component instance (%s) does not need an upgrade.",
liveContainer.getComponentInstanceName()));
}
}
Integer result = ugi.doAs((PrivilegedExceptionAction<Integer>) () -> {
int result1;
ServiceClient sc = getServiceClient();
sc.init(YARN_CONFIG);
sc.start();
result1 = sc.actionUpgrade(service, containers);
sc.close();
return result1;
});
ServiceApiUtil.validateInstancesUpgrade(containers);
Integer result = invokeContainersUpgrade(ugi, service, containers);
if (result == EXIT_SUCCESS) {
ServiceStatus status = new ServiceStatus();
status.setDiagnostics(
@ -668,6 +722,20 @@ private Response processContainerUpgrade(UserGroupInformation ugi,
return Response.status(Response.Status.NO_CONTENT).build();
}
private int invokeContainersUpgrade(UserGroupInformation ugi,
Service service, List<Container> containers) throws IOException,
InterruptedException {
return ugi.doAs((PrivilegedExceptionAction<Integer>) () -> {
int result1;
ServiceClient sc = getServiceClient();
sc.init(YARN_CONFIG);
sc.start();
result1 = sc.actionUpgrade(service, containers);
sc.close();
return result1;
});
}
private Service getServiceFromClient(UserGroupInformation ugi,
String serviceName) throws IOException, InterruptedException {

27
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/test/java/org/apache/hadoop/yarn/service/ServiceClientTest.java
View File

@ -34,7 +34,10 @@
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
/**
* A mock version of ServiceClient - This class is design
@ -46,6 +49,7 @@ public class ServiceClientTest extends ServiceClient {
private Configuration conf = new Configuration();
private Service goodServiceStatus = buildLiveGoodService();
private boolean initialized;
private Set<String> expectedInstances = new HashSet<>();
public ServiceClientTest() {
super();
@ -61,11 +65,12 @@ public void init(Configuration conf) {
@Override
public void stop() {
// This is needed for testing API Server which use client to get status
// This is needed for testing API Server which uses client to get status
// and then perform an action.
}
public void forceStop() {
expectedInstances.clear();
super.stop();
}
@ -144,17 +149,27 @@ public int initiateUpgrade(Service service) throws YarnException,
@Override
public int actionUpgrade(Service service, List<Container> compInstances)
throws IOException, YarnException {
if (service.getName() != null && service.getName().equals("jenkins")) {
if (service.getName() != null && service.getName().equals("jenkins")
&& compInstances != null) {
Set<String> actualInstances = compInstances.stream().map(
Container::getComponentInstanceName).collect(Collectors.toSet());
if (actualInstances.equals(expectedInstances)) {
return EXIT_SUCCESS;
} else {
throw new IllegalArgumentException();
}
}
throw new IllegalArgumentException();
}
Service getGoodServiceStatus() {
return goodServiceStatus;
}
void setExpectedInstances(Set<String> instances) {
if (instances != null) {
expectedInstances.addAll(instances);
}
}
static Service buildGoodService() {
Service service = new Service();
service.setName("jenkins");
@ -166,13 +181,15 @@ static Service buildGoodService() {
resource.setCpus(1);
resource.setMemory("2048");
List<Component> components = new ArrayList<>();
for (int i = 0; i < 2; i++) {
Component c = new Component();
c.setName("jenkins");
c.setName("jenkins" + i);
c.setNumberOfContainers(2L);
c.setArtifact(artifact);
c.setLaunchCommand("");
c.setResource(resource);
components.add(c);
}
service.setComponents(components);
return service;
}

71
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/test/java/org/apache/hadoop/yarn/service/TestApiServer.java
View File

@ -23,18 +23,22 @@
import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import com.google.common.collect.Sets;
import org.apache.commons.io.FileUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.service.api.records.Artifact;
import org.apache.hadoop.yarn.service.api.records.Artifact.TypeEnum;
import org.apache.hadoop.yarn.service.api.records.Component;
import org.apache.hadoop.yarn.service.api.records.ComponentState;
import org.apache.hadoop.yarn.service.api.records.Container;
import org.apache.hadoop.yarn.service.api.records.ContainerState;
import org.apache.hadoop.yarn.service.api.records.Resource;
@ -523,8 +527,11 @@ public void testUpgradeSingleInstance() {
// and container state needs to be in NEEDS_UPGRADE.
Service serviceStatus = mockServerClient.getGoodServiceStatus();
serviceStatus.setState(ServiceState.UPGRADING);
serviceStatus.getComponents().iterator().next().getContainers().iterator()
.next().setState(ContainerState.NEEDS_UPGRADE);
Container liveContainer = serviceStatus.getComponents().iterator().next()
.getContainers().iterator().next();
liveContainer.setState(ContainerState.NEEDS_UPGRADE);
mockServerClient.setExpectedInstances(Sets.newHashSet(
liveContainer.getComponentInstanceName()));
final Response actual = apiServer.updateComponentInstance(request,
goodService.getName(), comp.getName(),
@ -545,9 +552,14 @@ public void testUpgradeMultipleInstances() {
// and container state needs to be in NEEDS_UPGRADE.
Service serviceStatus = mockServerClient.getGoodServiceStatus();
serviceStatus.setState(ServiceState.UPGRADING);
Set<String> expectedInstances = new HashSet<>();
serviceStatus.getComponents().iterator().next().getContainers().forEach(
container -> container.setState(ContainerState.NEEDS_UPGRADE)
container -> {
container.setState(ContainerState.NEEDS_UPGRADE);
expectedInstances.add(container.getComponentInstanceName());
}
);
mockServerClient.setExpectedInstances(expectedInstances);
final Response actual = apiServer.updateComponentInstances(request,
goodService.getName(), comp.getContainers());
@ -555,4 +567,57 @@ public void testUpgradeMultipleInstances() {
Response.status(Status.ACCEPTED).build().getStatus(),
actual.getStatus());
}
@Test
public void testUpgradeComponent() {
Service goodService = ServiceClientTest.buildLiveGoodService();
Component comp = goodService.getComponents().iterator().next();
comp.setState(ComponentState.UPGRADING);
// To be able to upgrade, the service needs to be in UPGRADING
// and component state needs to be in NEEDS_UPGRADE.
Service serviceStatus = mockServerClient.getGoodServiceStatus();
serviceStatus.setState(ServiceState.UPGRADING);
Component liveComp = serviceStatus.getComponent(comp.getName());
liveComp.setState(ComponentState.NEEDS_UPGRADE);
Set<String> expectedInstances = new HashSet<>();
liveComp.getContainers().forEach(container -> {
expectedInstances.add(container.getComponentInstanceName());
container.setState(ContainerState.NEEDS_UPGRADE);
});
mockServerClient.setExpectedInstances(expectedInstances);
final Response actual = apiServer.updateComponent(request,
goodService.getName(), comp.getName(), comp);
assertEquals("Component upgrade is ",
Response.status(Status.ACCEPTED).build().getStatus(),
actual.getStatus());
}
@Test
public void testUpgradeMultipleComps() {
Service goodService = ServiceClientTest.buildLiveGoodService();
goodService.getComponents().forEach(comp ->
comp.setState(ComponentState.UPGRADING));
// To be able to upgrade, the live service needs to be in UPGRADING
// and component states needs to be in NEEDS_UPGRADE.
Service serviceStatus = mockServerClient.getGoodServiceStatus();
serviceStatus.setState(ServiceState.UPGRADING);
Set<String> expectedInstances = new HashSet<>();
serviceStatus.getComponents().forEach(liveComp -> {
liveComp.setState(ComponentState.NEEDS_UPGRADE);
liveComp.getContainers().forEach(liveContainer -> {
expectedInstances.add(liveContainer.getComponentInstanceName());
liveContainer.setState(ContainerState.NEEDS_UPGRADE);
});
});
mockServerClient.setExpectedInstances(expectedInstances);
final Response actual = apiServer.updateComponents(request,
goodService.getName(), goodService.getComponents());
assertEquals("Component upgrade is ",
Response.status(Status.ACCEPTED).build().getStatus(),
actual.getStatus());
}
}

12
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/test/java/org/apache/hadoop/yarn/service/client/TestApiServiceClient.java
View File

@ -298,5 +298,17 @@ public void testInstancesUpgrade() {
}
}
@Test
public void testComponentsUpgrade() {
String appName = "example-app";
try {
int result = asc.actionUpgradeComponents(appName, Lists.newArrayList(
"comp"));
assertEquals(EXIT_SUCCESS, result);
} catch (IOException | YarnException e) {
fail();
}
}
}

2
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/api/records/ComponentState.java
View File

@ -26,5 +26,5 @@
@InterfaceStability.Unstable
@ApiModel(description = "The current state of a component.")
public enum ComponentState {
FLEXING, STABLE, NEEDS_UPGRADE;
FLEXING, STABLE, NEEDS_UPGRADE, UPGRADING;
}

11
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/client/ServiceClient.java
View File

@ -294,6 +294,17 @@ public int actionUpgradeInstances(String appName,
Service persistedService = ServiceApiUtil.loadService(fs, appName);
List<Container> containersToUpgrade = ServiceApiUtil.
getLiveContainers(persistedService, componentInstances);
ServiceApiUtil.validateInstancesUpgrade(containersToUpgrade);
return actionUpgrade(persistedService, containersToUpgrade);
}
@Override
public int actionUpgradeComponents(String appName,
List<String> components) throws IOException, YarnException {
checkAppExistOnHdfs(appName);
Service persistedService = ServiceApiUtil.loadService(fs, appName);
List<Container> containersToUpgrade = ServiceApiUtil
.validateAndResolveCompsUpgrade(persistedService, components);
return actionUpgrade(persistedService, containersToUpgrade);
}

2
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/conf/RestApiConstants.java
View File

@ -34,6 +34,8 @@ public interface RestApiConstants {
"/component-instances/{component_instance_name}";
String COMP_INSTANCES = "component-instances";
String COMP_INSTANCES_PATH = SERVICE_PATH + "/" + COMP_INSTANCES;
String COMPONENTS = "components";
String COMPONENTS_PATH = SERVICE_PATH + "/" + COMPONENTS;
// Query param
String SERVICE_NAME = "service_name";

6
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/exceptions/RestApiErrorMessages.java
View File

@ -105,4 +105,10 @@ public interface RestApiErrorMessages {
+ "expression name defined for this component only.";
String ERROR_KEYTAB_URI_SCHEME_INVALID = "Unsupported keytab URI scheme: %s";
String ERROR_KEYTAB_URI_INVALID = "Invalid keytab URI: %s";
String ERROR_COMP_INSTANCE_DOES_NOT_NEED_UPGRADE = "The component instance " +
"(%s) does not need an upgrade.";
String ERROR_COMP_DOES_NOT_NEED_UPGRADE = "The component (%s) does not need" +
" an upgrade.";
}

53
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/utils/ServiceApiUtil.java
View File

@ -19,8 +19,10 @@
package org.apache.hadoop.yarn.service.utils;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Multimap;
import com.google.common.collect.Sets;
import org.apache.commons.lang.StringUtils;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
@ -29,14 +31,16 @@
import org.apache.hadoop.registry.client.binding.RegistryUtils;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.service.api.records.ComponentState;
import org.apache.hadoop.yarn.service.api.records.Container;
import org.apache.hadoop.yarn.service.api.records.ContainerState;
import org.apache.hadoop.yarn.service.api.records.Service;
import org.apache.hadoop.yarn.service.api.records.Artifact;
import org.apache.hadoop.yarn.service.api.records.Component;
import org.apache.hadoop.yarn.service.api.records.Configuration;
import org.apache.hadoop.yarn.service.api.records.Container;
import org.apache.hadoop.yarn.service.api.records.KerberosPrincipal;
import org.apache.hadoop.yarn.service.api.records.PlacementConstraint;
import org.apache.hadoop.yarn.service.api.records.Resource;
import org.apache.hadoop.yarn.service.api.records.Service;
import org.apache.hadoop.yarn.service.exceptions.SliderException;
import org.apache.hadoop.yarn.service.conf.RestApiConstants;
import org.apache.hadoop.yarn.service.exceptions.RestApiErrorMessages;
@ -58,6 +62,9 @@
import java.util.Map;
import java.util.Set;
import static org.apache.hadoop.yarn.service.exceptions.RestApiErrorMessages.ERROR_COMP_DOES_NOT_NEED_UPGRADE;
import static org.apache.hadoop.yarn.service.exceptions.RestApiErrorMessages.ERROR_COMP_INSTANCE_DOES_NOT_NEED_UPGRADE;
public class ServiceApiUtil {
private static final Logger LOG =
LoggerFactory.getLogger(ServiceApiUtil.class);
@ -545,6 +552,48 @@ public static List<Container> getLiveContainers(Service service,
return result;
}
/**
* Validates that the component instances that are requested to upgrade
* require an upgrade.
*/
public static void validateInstancesUpgrade(List<Container>
liveContainers) throws YarnException {
for (Container liveContainer : liveContainers) {
if (!liveContainer.getState().equals(ContainerState.NEEDS_UPGRADE)) {
// Nothing to upgrade
throw new YarnException(String.format(
ERROR_COMP_INSTANCE_DOES_NOT_NEED_UPGRADE,
liveContainer.getComponentInstanceName()));
}
}
}
/**
* Validates the components that are requested to upgrade require an upgrade.
* It returns the instances of the components which need upgrade.
*/
public static List<Container> validateAndResolveCompsUpgrade(
Service liveService, Collection<String> compNames) throws YarnException {
Preconditions.checkNotNull(compNames);
HashSet<String> requestedComps = Sets.newHashSet(compNames);
List<Container> containerNeedUpgrade = new ArrayList<>();
for (Component liveComp : liveService.getComponents()) {
if (requestedComps.contains(liveComp.getName())) {
if (!liveComp.getState().equals(ComponentState.NEEDS_UPGRADE)) {
// Nothing to upgrade
throw new YarnException(String.format(
ERROR_COMP_DOES_NOT_NEED_UPGRADE, liveComp.getName()));
}
liveComp.getContainers().forEach(liveContainer -> {
if (liveContainer.getState().equals(ContainerState.NEEDS_UPGRADE)) {
containerNeedUpgrade.add(liveContainer);
}
});
}
}
return containerNeedUpgrade;
}
private static String parseComponentName(String componentInstanceName)
throws YarnException {
int idx = componentInstanceName.lastIndexOf('-');

18
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/client/TestServiceCLI.java
View File

@ -193,6 +193,18 @@ public void testUpgradeInstances() throws Exception {
Assert.assertEquals(result, 0);
}
@Test (timeout = 180000)
public void testUpgradeComponents() throws Exception {
conf.set(YARN_APP_ADMIN_CLIENT_PREFIX + DUMMY_APP_TYPE,
DummyServiceClient.class.getName());
cli.setConf(conf);
String[] args = {"app", "-upgrade", "app-1",
"-components", "comp1,comp2",
"-appTypes", DUMMY_APP_TYPE};
int result = cli.run(ApplicationCLI.preProcessArgs(args));
Assert.assertEquals(result, 0);
}
@Test (timeout = 180000)
public void testEnableFastLaunch() throws Exception {
fs.getFileSystem().create(new Path(basedir.getAbsolutePath(), "test.jar"))
@ -291,5 +303,11 @@ public int actionUpgradeInstances(String appName,
List<String> componentInstances) throws IOException, YarnException {
return 0;
}
@Override
public int actionUpgradeComponents(String appName, List<String> components)
throws IOException, YarnException {
return 0;
}
}
}

12
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/api/AppAdminClient.java
View File

@ -258,4 +258,16 @@ public abstract int initiateUpgrade(String appName, String fileName,
public abstract int actionUpgradeInstances(String appName,
List<String> componentInstances) throws IOException, YarnException;
/**
* Upgrade components of a long running service.
*
* @param appName the name of the application.
* @param components the name of the components.
*/
@Public
@Unstable
public abstract int actionUpgradeComponents(String appName,
List<String> components) throws IOException, YarnException;
}

17
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java
View File

@ -104,6 +104,7 @@ public class ApplicationCLI extends YarnCLI {
public static final String UPGRADE_AUTO_FINALIZE = "autoFinalize";
public static final String UPGRADE_FINALIZE = "finalize";
public static final String COMPONENT_INSTS = "instances";
public static final String COMPONENTS = "components";
private static String firstArg = null;
@ -250,6 +251,8 @@ public int run(String[] args) throws Exception {
opts.addOption(COMPONENT_INSTS, true, "Works with -upgrade option to " +
"trigger the upgrade of specified component instances of the " +
"application.");
opts.addOption(COMPONENTS, true, "Works with -upgrade option to " +
"trigger the upgrade of specified components of the application.");
opts.addOption(UPGRADE_FINALIZE, false, "Works with -upgrade option to " +
"finalize the upgrade.");
opts.addOption(UPGRADE_AUTO_FINALIZE, false, "Works with -upgrade and " +
@ -274,6 +277,9 @@ public int run(String[] args) throws Exception {
opts.getOption(COMPONENT_INSTS).setArgName("Component Instances");
opts.getOption(COMPONENT_INSTS).setValueSeparator(',');
opts.getOption(COMPONENT_INSTS).setArgs(Option.UNLIMITED_VALUES);
opts.getOption(COMPONENTS).setArgName("Components");
opts.getOption(COMPONENTS).setValueSeparator(',');
opts.getOption(COMPONENTS).setArgs(Option.UNLIMITED_VALUES);
} else if (title != null && title.equalsIgnoreCase(APPLICATION_ATTEMPT)) {
opts.addOption(STATUS_CMD, true,
"Prints the status of the application attempt.");
@ -574,7 +580,7 @@ public int run(String[] args) throws Exception {
cliParser.getOptionValue(CHANGE_APPLICATION_QUEUE));
} else if (cliParser.hasOption(UPGRADE_CMD)) {
if (hasAnyOtherCLIOptions(cliParser, opts, UPGRADE_CMD, UPGRADE_INITIATE,
UPGRADE_AUTO_FINALIZE, UPGRADE_FINALIZE, COMPONENT_INSTS,
UPGRADE_AUTO_FINALIZE, UPGRADE_FINALIZE, COMPONENT_INSTS, COMPONENTS,
APP_TYPE_CMD)) {
printUsage(title, opts);
return exitCode;
@ -603,6 +609,15 @@ public int run(String[] args) throws Exception {
}
String[] instances = cliParser.getOptionValues(COMPONENT_INSTS);
return client.actionUpgradeInstances(appName, Arrays.asList(instances));
} else if (cliParser.hasOption(COMPONENTS)) {
if (hasAnyOtherCLIOptions(cliParser, opts, UPGRADE_CMD,
COMPONENTS, APP_TYPE_CMD)) {
printUsage(title, opts);
return exitCode;
}
String[] components = cliParser.getOptionValues(COMPONENTS);
return client.actionUpgradeComponents(appName,
Arrays.asList(components));
} else if (cliParser.hasOption(UPGRADE_FINALIZE)) {
if (hasAnyOtherCLIOptions(cliParser, opts, UPGRADE_CMD,
UPGRADE_FINALIZE, APP_TYPE_CMD)) {

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
View File

@ -2143,6 +2143,9 @@ private String createApplicationCLIHelpMessage() throws IOException {
pw.println(" long-running service. Supports");
pw.println(" absolute or relative changes,");
pw.println(" such as +1, 2, or -3.");
pw.println(" -components <Components> Works with -upgrade option to");
pw.println(" trigger the upgrade of specified");
pw.println(" components of the application.");
pw.println(" -destroy <Application Name> Destroys a saved application");
pw.println(" specification and removes all");
pw.println(" application data permanently.");