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YARN-7599. [BackPort][GPG] ApplicationCleaner in Global Policy Genera…
…tor. (apache#5934) Contributed by Botong Huang, Shilun Fan. Co-authored-by: Botong Huang <[email protected]> Co-authored-by: slfan1989 <[email protected]> Reviewed-by: Inigo Goiri <[email protected]> Signed-off-by: Shilun Fan <[email protected]>
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...pache/hadoop/yarn/server/globalpolicygenerator/applicationcleaner/ApplicationCleaner.java
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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. | ||
| */ | ||
|
|
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| package org.apache.hadoop.yarn.server.globalpolicygenerator.applicationcleaner; | ||
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| import java.util.HashSet; | ||
| import java.util.Set; | ||
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| import org.apache.commons.lang3.time.DurationFormatUtils; | ||
| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.yarn.api.records.ApplicationId; | ||
| import org.apache.hadoop.yarn.conf.YarnConfiguration; | ||
| import org.apache.hadoop.yarn.exceptions.YarnException; | ||
| import org.apache.hadoop.yarn.exceptions.YarnRuntimeException; | ||
| import org.apache.hadoop.yarn.server.globalpolicygenerator.GPGContext; | ||
| import org.apache.hadoop.yarn.server.globalpolicygenerator.GPGUtils; | ||
| import org.apache.hadoop.yarn.server.resourcemanager.webapp.DeSelectFields; | ||
| import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo; | ||
| import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppsInfo; | ||
| import org.apache.hadoop.yarn.webapp.util.WebAppUtils; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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|
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| /** | ||
| * The ApplicationCleaner is a runnable that cleans up old applications from | ||
| * table applicationsHomeSubCluster in FederationStateStore. | ||
| */ | ||
| public abstract class ApplicationCleaner implements Runnable { | ||
| private static final Logger LOG = | ||
| LoggerFactory.getLogger(ApplicationCleaner.class); | ||
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| private Configuration conf; | ||
| private GPGContext gpgContext; | ||
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| private int minRouterSuccessCount; | ||
| private int maxRouterRetry; | ||
| private long routerQueryIntevalMillis; | ||
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| public void init(Configuration config, GPGContext context) | ||
| throws YarnException { | ||
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| this.gpgContext = context; | ||
| this.conf = config; | ||
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| String routerSpecString = | ||
| this.conf.get(YarnConfiguration.GPG_APPCLEANER_CONTACT_ROUTER_SPEC, | ||
| YarnConfiguration.DEFAULT_GPG_APPCLEANER_CONTACT_ROUTER_SPEC); | ||
| String[] specs = routerSpecString.split(","); | ||
| if (specs.length != 3) { | ||
| throw new YarnException("Expect three comma separated values in " | ||
| + YarnConfiguration.GPG_APPCLEANER_CONTACT_ROUTER_SPEC + " but get " | ||
| + routerSpecString); | ||
| } | ||
| this.minRouterSuccessCount = Integer.parseInt(specs[0]); | ||
| this.maxRouterRetry = Integer.parseInt(specs[1]); | ||
| this.routerQueryIntevalMillis = Long.parseLong(specs[2]); | ||
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| if (this.minRouterSuccessCount > this.maxRouterRetry) { | ||
| throw new YarnException("minRouterSuccessCount " | ||
| + this.minRouterSuccessCount | ||
| + " should not be larger than maxRouterRetry" + this.maxRouterRetry); | ||
| } | ||
| if (this.minRouterSuccessCount <= 0) { | ||
| throw new YarnException("minRouterSuccessCount " | ||
| + this.minRouterSuccessCount + " should be positive"); | ||
| } | ||
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| LOG.info( | ||
| "Initialized AppCleaner with Router query with min success {}, " | ||
| + "max retry {}, retry interval {}", | ||
| this.minRouterSuccessCount, this.maxRouterRetry, | ||
| DurationFormatUtils.formatDurationISO(this.routerQueryIntevalMillis)); | ||
| } | ||
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| public GPGContext getGPGContext() { | ||
| return this.gpgContext; | ||
| } | ||
|
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| /** | ||
| * Query router for applications. | ||
| * | ||
| * @return the set of applications | ||
| * @throws YarnRuntimeException when router call fails | ||
| */ | ||
| public Set<ApplicationId> getAppsFromRouter() throws YarnRuntimeException { | ||
| String webAppAddress = WebAppUtils.getRouterWebAppURLWithScheme(conf); | ||
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| LOG.info(String.format("Contacting router at: %s", webAppAddress)); | ||
| AppsInfo appsInfo = GPGUtils.invokeRMWebService(webAppAddress, "apps", AppsInfo.class, conf, | ||
| DeSelectFields.DeSelectType.RESOURCE_REQUESTS.toString()); | ||
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| Set<ApplicationId> appSet = new HashSet<>(); | ||
| for (AppInfo appInfo : appsInfo.getApps()) { | ||
| appSet.add(ApplicationId.fromString(appInfo.getAppId())); | ||
| } | ||
| return appSet; | ||
| } | ||
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| /** | ||
| * Get the list of known applications in the cluster from Router. | ||
| * | ||
| * @return the list of known applications | ||
| * @throws YarnException if get app fails | ||
| */ | ||
| public Set<ApplicationId> getRouterKnownApplications() throws YarnException { | ||
| int successCount = 0, totalAttemptCount = 0; | ||
| Set<ApplicationId> resultSet = new HashSet<>(); | ||
| while (totalAttemptCount < this.maxRouterRetry) { | ||
| try { | ||
| Set<ApplicationId> routerApps = getAppsFromRouter(); | ||
| resultSet.addAll(routerApps); | ||
| LOG.info("Attempt {}: {} known apps from Router, {} in total", | ||
| totalAttemptCount, routerApps.size(), resultSet.size()); | ||
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| successCount++; | ||
| if (successCount >= this.minRouterSuccessCount) { | ||
| return resultSet; | ||
| } | ||
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| // Wait for the next attempt | ||
| try { | ||
| Thread.sleep(this.routerQueryIntevalMillis); | ||
| } catch (InterruptedException e) { | ||
| LOG.warn("Sleep interrupted after attempt {}.", totalAttemptCount); | ||
| } | ||
| } catch (Exception e) { | ||
| LOG.warn("Router query attempt {} failed.", totalAttemptCount, e); | ||
| } finally { | ||
| totalAttemptCount++; | ||
| } | ||
| } | ||
| throw new YarnException("Only " + successCount | ||
| + " success Router queries after " + totalAttemptCount + " retries"); | ||
| } | ||
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| @Override | ||
| public abstract void run(); | ||
| } |
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