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https://issues.apache.org/jira/browse/FLINK-10848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16734998#comment-16734998
]
Gary Yao commented on FLINK-10848:
----------------------------------
[~suez1224] What was the hadoop version that you tested with? I am seeing this
stacktrace when testing against master
{noformat}
java.lang.NullPointerException
at
org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl.decResourceRequest(AMRMClientImpl.java:845)
at
org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl.removeContainerRequest(AMRMClientImpl.java:572)
at
org.apache.hadoop.yarn.client.api.async.impl.AMRMClientAsyncImpl.removeContainerRequest(AMRMClientAsyncImpl.java:207)
at
org.apache.flink.yarn.YarnResourceManager.lambda$onContainersAllocated$1(YarnResourceManager.java:364)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:332)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:158)
at
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:70)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.onReceive(AkkaRpcActor.java:142)
at
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.onReceive(FencedAkkaRpcActor.java:40)
at
akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165)
at akka.actor.Actor$class.aroundReceive(Actor.scala:502)
at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
at akka.actor.ActorCell.invoke(ActorCell.scala:495)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
at akka.dispatch.Mailbox.run(Mailbox.scala:224)
at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at
scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at
scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at
scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
{noformat}
Hadoop 2.8.3
> Flink's Yarn ResourceManager can allocate too many excess containers
> --------------------------------------------------------------------
>
> Key: FLINK-10848
> URL: https://issues.apache.org/jira/browse/FLINK-10848
> Project: Flink
> Issue Type: Bug
> Components: YARN
> Affects Versions: 1.3.3, 1.4.2, 1.5.5, 1.6.2
> Reporter: Shuyi Chen
> Assignee: Shuyi Chen
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, both the YarnFlinkResourceManager and YarnResourceManager do not
> call removeContainerRequest() on container allocation success. Because the
> YARN AM-RM protocol is not a delta protocol (please see YARN-1902),
> AMRMClient will keep all ContainerRequests that are added and send them to RM.
> In production, we observe the following that verifies the theory: 16
> containers are allocated and used upon cluster startup; when a TM is killed,
> 17 containers are allocated, 1 container is used, and 16 excess containers
> are returned; when another TM is killed, 18 containers are allocated, 1
> container is used, and 17 excess containers are returned.
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