YARN-6648. BackPort [GPG] Add SubClusterCleaner in Global Policy Generator. (#5676)
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slfan1989
GitHub
parent
fb16e00da0
commit
a409d52ef8
@ -387,6 +387,11 @@
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<Method name="initAndStartNodeManager" />
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<Bug pattern="DM_EXIT" />
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</Match>
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<Match>
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<Class name="org.apache.hadoop.yarn.server.globalpolicygenerator.GlobalPolicyGenerator" />
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<Medhod name="startGPG" />
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<Bug pattern="DM_EXIT" />
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</Match>
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<!-- Ignore heartbeat exception when killing localizer -->
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<Match>
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@ -542,7 +542,7 @@ public static boolean isAclEnabled(Configuration conf) {
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*/
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public static final String GLOBAL_RM_AM_MAX_ATTEMPTS =
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RM_PREFIX + "am.global.max-attempts";
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/** The keytab for the resource manager.*/
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public static final String RM_KEYTAB =
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RM_PREFIX + "keytab";
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@ -598,7 +598,7 @@ public static boolean isAclEnabled(Configuration conf) {
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RM_PREFIX + "submission-preprocessor.file-refresh-interval-ms";
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public static final int
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DEFAULT_RM_SUBMISSION_PREPROCESSOR_REFRESH_INTERVAL_MS = 0;
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/** Path to file with nodes to exclude.*/
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public static final String RM_NODES_EXCLUDE_FILE_PATH =
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RM_PREFIX + "nodes.exclude-path";
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@ -1551,7 +1551,7 @@ public static boolean isAclEnabled(Configuration conf) {
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+ "log-aggregation.debug.filesize";
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public static final long DEFAULT_LOG_AGGREGATION_DEBUG_FILESIZE
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= 100 * 1024 * 1024;
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/**
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* How long to wait between aggregated log retention checks. If set to
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* a value {@literal <=} 0 then the value is computed as one-tenth of the
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@ -2201,7 +2201,7 @@ public static boolean isAclEnabled(Configuration conf) {
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public static final long DEFAULT_NM_HEALTH_CHECK_TIMEOUT_MS =
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2 * DEFAULT_NM_HEALTH_CHECK_INTERVAL_MS;
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/** Health check script time out period.*/
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/** Health check script time out period.*/
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public static final String NM_HEALTH_CHECK_SCRIPT_TIMEOUT_MS_TEMPLATE =
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NM_PREFIX + "health-checker.%s.timeout-ms";
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@ -2922,7 +2922,7 @@ public static boolean isAclEnabled(Configuration conf) {
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/** Binding address for the web proxy. */
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public static final String PROXY_BIND_HOST =
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PROXY_PREFIX + "bind-host";
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/**
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* YARN Service Level Authorization
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*/
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@ -4340,6 +4340,24 @@ public static boolean isAclEnabled(Configuration conf) {
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public static final boolean DEFAULT_ROUTER_WEBAPP_PARTIAL_RESULTS_ENABLED =
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false;
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private static final String FEDERATION_GPG_PREFIX = FEDERATION_PREFIX + "gpg.";
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// The number of threads to use for the GPG scheduled executor service
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public static final String GPG_SCHEDULED_EXECUTOR_THREADS =
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FEDERATION_GPG_PREFIX + "scheduled.executor.threads";
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public static final int DEFAULT_GPG_SCHEDULED_EXECUTOR_THREADS = 10;
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// The interval at which the subcluster cleaner runs, -1 means disabled
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public static final String GPG_SUBCLUSTER_CLEANER_INTERVAL_MS =
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FEDERATION_GPG_PREFIX + "subcluster.cleaner.interval-ms";
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public static final long DEFAULT_GPG_SUBCLUSTER_CLEANER_INTERVAL_MS =
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TimeUnit.MILLISECONDS.toMillis(-1);
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// The expiration time for a subcluster heartbeat, default is 30 minutes
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public static final String GPG_SUBCLUSTER_EXPIRATION_MS =
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FEDERATION_GPG_PREFIX + "subcluster.heartbeat.expiration-ms";
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public static final long DEFAULT_GPG_SUBCLUSTER_EXPIRATION_MS = TimeUnit.MINUTES.toMillis(30);
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/**
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* Connection and Read timeout from the Router to RM.
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*/
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@ -5264,6 +5264,32 @@
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<value>false</value>
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</property>
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<property>
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<description>
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The number of threads to use for the GPG scheduled executor service.
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default is 10.
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</description>
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<name>yarn.federation.gpg.scheduled.executor.threads</name>
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<value>10</value>
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</property>
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<property>
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<description>
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The interval at which the subcluster cleaner runs, -1 means disabled.
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default is -1.
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</description>
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<name>yarn.federation.gpg.subcluster.cleaner.interval-ms</name>
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<value>-1ms</value>
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</property>
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<property>
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<description>
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The expiration time for a subcluster heartbeat, default is 30 minutes.
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</description>
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<name>yarn.federation.gpg.subcluster.heartbeat.expiration-ms</name>
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<value>30m</value>
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</property>
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<property>
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<name>yarn.apps.cache.enable</name>
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<value>false</value>
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@ -215,6 +215,17 @@ public SubClusterHeartbeatResponse subClusterHeartbeat(SubClusterHeartbeatReques
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return SubClusterHeartbeatResponse.newInstance();
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}
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@VisibleForTesting
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public void setSubClusterLastHeartbeat(SubClusterId subClusterId,
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long lastHeartbeat) throws YarnException {
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SubClusterInfo subClusterInfo = membership.get(subClusterId);
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if (subClusterInfo == null) {
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throw new YarnException(
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"Subcluster " + subClusterId.toString() + " does not exist");
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}
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subClusterInfo.setLastHeartBeat(lastHeartbeat);
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}
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@Override
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public GetSubClusterInfoResponse getSubCluster(GetSubClusterInfoRequest request)
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throws YarnException {
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@ -266,6 +266,26 @@ public Map<SubClusterId, SubClusterInfo> getSubClusters(final boolean filterInac
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}
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}
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/**
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* Updates the cache with the central {@link FederationStateStore} and returns
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* the {@link SubClusterInfo} of all active sub cluster(s).
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*
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* @param filterInactiveSubClusters whether to filter out inactive
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* sub-clusters
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* @param flushCache flag to indicate if the cache should be flushed or not
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* @return the sub cluster information
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* @throws YarnException if the call to the state store is unsuccessful
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*/
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public Map<SubClusterId, SubClusterInfo> getSubClusters(
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final boolean filterInactiveSubClusters, final boolean flushCache)
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throws YarnException {
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if (flushCache && federationCache.isCachingEnabled()) {
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LOG.info("Flushing subClusters from cache and rehydrating from store.");
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federationCache.removeSubCluster(flushCache);
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}
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return getSubClusters(filterInactiveSubClusters);
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}
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/**
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* Returns the {@link SubClusterPolicyConfiguration} for the specified queue.
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*
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@ -18,8 +18,11 @@
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package org.apache.hadoop.yarn.server.globalpolicygenerator;
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import java.util.concurrent.ScheduledThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicBoolean;
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import org.apache.commons.lang.time.DurationFormatUtils;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
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import org.apache.hadoop.service.CompositeService;
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@ -28,6 +31,7 @@
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import org.apache.hadoop.yarn.YarnUncaughtExceptionHandler;
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import org.apache.hadoop.yarn.conf.YarnConfiguration;
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import org.apache.hadoop.yarn.server.federation.utils.FederationStateStoreFacade;
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import org.apache.hadoop.yarn.server.globalpolicygenerator.subclustercleaner.SubClusterCleaner;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@ -55,6 +59,10 @@ public class GlobalPolicyGenerator extends CompositeService {
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// Federation Variables
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private GPGContext gpgContext;
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// Scheduler service that runs tasks periodically
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private ScheduledThreadPoolExecutor scheduledExecutorService;
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private SubClusterCleaner subClusterCleaner;
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public GlobalPolicyGenerator() {
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super(GlobalPolicyGenerator.class.getName());
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this.gpgContext = new GPGContextImpl();
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@ -78,6 +86,11 @@ protected void serviceInit(Configuration conf) throws Exception {
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this.gpgContext
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.setStateStoreFacade(FederationStateStoreFacade.getInstance());
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this.scheduledExecutorService = new ScheduledThreadPoolExecutor(
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conf.getInt(YarnConfiguration.GPG_SCHEDULED_EXECUTOR_THREADS,
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YarnConfiguration.DEFAULT_GPG_SCHEDULED_EXECUTOR_THREADS));
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this.subClusterCleaner = new SubClusterCleaner(conf, this.gpgContext);
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DefaultMetricsSystem.initialize(METRICS_NAME);
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// super.serviceInit after all services are added
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@ -87,10 +100,33 @@ protected void serviceInit(Configuration conf) throws Exception {
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@Override
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protected void serviceStart() throws Exception {
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super.serviceStart();
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// Scheduler SubClusterCleaner service
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Configuration config = getConfig();
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long scCleanerIntervalMs = config.getTimeDuration(
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YarnConfiguration.GPG_SUBCLUSTER_CLEANER_INTERVAL_MS,
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YarnConfiguration.DEFAULT_GPG_SUBCLUSTER_CLEANER_INTERVAL_MS, TimeUnit.MILLISECONDS);
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if (scCleanerIntervalMs > 0) {
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this.scheduledExecutorService.scheduleAtFixedRate(this.subClusterCleaner,
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0, scCleanerIntervalMs, TimeUnit.MILLISECONDS);
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LOG.info("Scheduled sub-cluster cleaner with interval: {}",
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DurationFormatUtils.formatDurationISO(scCleanerIntervalMs));
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}
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}
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@Override
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protected void serviceStop() throws Exception {
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try {
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if (this.scheduledExecutorService != null
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&& !this.scheduledExecutorService.isShutdown()) {
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this.scheduledExecutorService.shutdown();
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LOG.info("Stopped ScheduledExecutorService");
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}
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} catch (Exception e) {
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LOG.error("Failed to shutdown ScheduledExecutorService", e);
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throw e;
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}
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if (this.isStopping.getAndSet(true)) {
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return;
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}
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@ -0,0 +1,113 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.yarn.server.globalpolicygenerator.subclustercleaner;
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import java.util.Date;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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import org.apache.commons.lang.time.DurationFormatUtils;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.yarn.conf.YarnConfiguration;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterInfo;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterState;
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import org.apache.hadoop.yarn.server.globalpolicygenerator.GPGContext;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* The sub-cluster cleaner is one of the GPG's services that periodically checks
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* the membership table in FederationStateStore and mark sub-clusters that have
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* not sent a heartbeat in certain amount of time as LOST.
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*/
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public class SubClusterCleaner implements Runnable {
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private static final Logger LOG =
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LoggerFactory.getLogger(SubClusterCleaner.class);
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private GPGContext gpgContext;
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private long heartbeatExpirationMillis;
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/**
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* The sub-cluster cleaner runnable is invoked by the sub cluster cleaner
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* service to check the membership table and remove sub clusters that have not
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* sent a heart beat in some amount of time.
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*
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* @param conf configuration.
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* @param gpgContext GPGContext.
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*/
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public SubClusterCleaner(Configuration conf, GPGContext gpgContext) {
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this.heartbeatExpirationMillis = conf.getTimeDuration(
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YarnConfiguration.GPG_SUBCLUSTER_EXPIRATION_MS,
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YarnConfiguration.DEFAULT_GPG_SUBCLUSTER_EXPIRATION_MS, TimeUnit.MILLISECONDS);
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this.gpgContext = gpgContext;
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LOG.info("Initialized SubClusterCleaner with heartbeat expiration of {}",
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DurationFormatUtils.formatDurationISO(this.heartbeatExpirationMillis));
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}
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@Override
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public void run() {
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try {
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Date now = new Date();
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LOG.info("SubClusterCleaner at {}", now);
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Map<SubClusterId, SubClusterInfo> infoMap =
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this.gpgContext.getStateStoreFacade().getSubClusters(false, true);
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// Iterate over each sub cluster and check last heartbeat
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for (Map.Entry<SubClusterId, SubClusterInfo> entry : infoMap.entrySet()) {
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SubClusterInfo subClusterInfo = entry.getValue();
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Date lastHeartBeat = new Date(subClusterInfo.getLastHeartBeat());
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if (LOG.isDebugEnabled()) {
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LOG.debug("Checking subcluster {} in state {}, last heartbeat at {}",
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subClusterInfo.getSubClusterId(), subClusterInfo.getState(),
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lastHeartBeat);
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}
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if (subClusterInfo.getState().isUsable()) {
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long timeUntilDeregister = this.heartbeatExpirationMillis
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- (now.getTime() - lastHeartBeat.getTime());
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// Deregister sub-cluster as SC_LOST if last heartbeat too old
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if (timeUntilDeregister < 0) {
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LOG.warn(
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"Deregistering subcluster {} in state {} last heartbeat at {}",
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subClusterInfo.getSubClusterId(), subClusterInfo.getState(),
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new Date(subClusterInfo.getLastHeartBeat()));
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try {
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this.gpgContext.getStateStoreFacade().deregisterSubCluster(
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subClusterInfo.getSubClusterId(), SubClusterState.SC_LOST);
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} catch (Exception e) {
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LOG.error("deregisterSubCluster failed on subcluster "
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+ subClusterInfo.getSubClusterId(), e);
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}
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} else if (LOG.isDebugEnabled()) {
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LOG.debug("Time until deregister for subcluster {}: {}",
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entry.getKey(),
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DurationFormatUtils.formatDurationISO(timeUntilDeregister));
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}
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}
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}
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} catch (Throwable e) {
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LOG.error("Subcluster cleaner fails: ", e);
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}
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}
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}
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@ -0,0 +1,19 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
|
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* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
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* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
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* with the License. You may obtain a copy of the License at
|
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*
|
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* http://www.apache.org/licenses/LICENSE-2.0
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*
|
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* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
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* limitations under the License.
|
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*/
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package org.apache.hadoop.yarn.server.globalpolicygenerator.subclustercleaner;
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@ -0,0 +1,121 @@
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/**
|
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* Licensed to the Apache Software Foundation (ASF) under one
|
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* 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
|
||||
*
|
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* http://www.apache.org/licenses/LICENSE-2.0
|
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*
|
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* 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.
|
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*/
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package org.apache.hadoop.yarn.server.globalpolicygenerator.subclustercleaner;
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import java.util.ArrayList;
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import java.util.concurrent.TimeUnit;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.yarn.conf.YarnConfiguration;
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import org.apache.hadoop.yarn.exceptions.YarnException;
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import org.apache.hadoop.yarn.server.federation.store.impl.MemoryFederationStateStore;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterHeartbeatRequest;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterInfo;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterRegisterRequest;
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import org.apache.hadoop.yarn.server.federation.store.records.SubClusterState;
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import org.apache.hadoop.yarn.server.federation.utils.FederationStateStoreFacade;
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import org.apache.hadoop.yarn.server.globalpolicygenerator.GPGContext;
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import org.apache.hadoop.yarn.server.globalpolicygenerator.GPGContextImpl;
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import org.junit.After;
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import org.junit.Assert;
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import org.junit.Before;
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import org.junit.Test;
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/**
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* Unit test for Sub-cluster Cleaner in GPG.
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*/
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public class TestSubClusterCleaner {
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private Configuration conf;
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private MemoryFederationStateStore stateStore;
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private FederationStateStoreFacade facade;
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private SubClusterCleaner cleaner;
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private GPGContext gpgContext;
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private static final long TWO_SECONDS = TimeUnit.SECONDS.toMillis(2);
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private ArrayList<SubClusterId> subClusterIds;
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@Before
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public void setup() throws YarnException {
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conf = new YarnConfiguration();
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// subcluster expires in one second
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conf.setLong(YarnConfiguration.GPG_SUBCLUSTER_EXPIRATION_MS, 1000);
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stateStore = new MemoryFederationStateStore();
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stateStore.init(conf);
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facade = FederationStateStoreFacade.getInstance();
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facade.reinitialize(stateStore, conf);
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|
||||
gpgContext = new GPGContextImpl();
|
||||
gpgContext.setStateStoreFacade(facade);
|
||||
|
||||
cleaner = new SubClusterCleaner(conf, gpgContext);
|
||||
|
||||
// Create and register six sub clusters
|
||||
subClusterIds = new ArrayList<SubClusterId>();
|
||||
for (int i = 0; i < 3; i++) {
|
||||
// Create sub cluster id and info
|
||||
SubClusterId subClusterId =
|
||||
SubClusterId.newInstance("SUBCLUSTER-" + Integer.toString(i));
|
||||
|
||||
SubClusterInfo subClusterInfo = SubClusterInfo.newInstance(subClusterId,
|
||||
"1.2.3.4:1", "1.2.3.4:2", "1.2.3.4:3", "1.2.3.4:4",
|
||||
SubClusterState.SC_RUNNING, System.currentTimeMillis(), "");
|
||||
// Register the sub cluster
|
||||
stateStore.registerSubCluster(
|
||||
SubClusterRegisterRequest.newInstance(subClusterInfo));
|
||||
// Append the id to a local list
|
||||
subClusterIds.add(subClusterId);
|
||||
}
|
||||
}
|
||||
|
||||
@After
|
||||
public void breakDown() throws Exception {
|
||||
stateStore.close();
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testSubClusterRegisterHeartBeatTime() throws YarnException {
|
||||
cleaner.run();
|
||||
Assert.assertEquals(3, facade.getSubClusters(true, true).size());
|
||||
}
|
||||
|
||||
/**
|
||||
* Test the base use case.
|
||||
*/
|
||||
@Test
|
||||
public void testSubClusterHeartBeat() throws YarnException {
|
||||
// The first subcluster reports as Unhealthy
|
||||
SubClusterId subClusterId = subClusterIds.get(0);
|
||||
stateStore.subClusterHeartbeat(SubClusterHeartbeatRequest
|
||||
.newInstance(subClusterId, SubClusterState.SC_UNHEALTHY, "capacity"));
|
||||
|
||||
// The second subcluster didn't heartbeat for two seconds, should mark lost
|
||||
subClusterId = subClusterIds.get(1);
|
||||
stateStore.setSubClusterLastHeartbeat(subClusterId,
|
||||
System.currentTimeMillis() - TWO_SECONDS);
|
||||
|
||||
cleaner.run();
|
||||
Assert.assertEquals(1, facade.getSubClusters(true, true).size());
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user