Gary Yao created FLINK-8902:
-------------------------------
Summary: Re-scaling job sporadically fails with KeeperException
Key: FLINK-8902
URL: https://issues.apache.org/jira/browse/FLINK-8902
Project: Flink
Issue Type: Bug
Components: Distributed Coordination
Affects Versions: 1.5.0, 1.6.0
Environment: Commit: 80020cb
Hadoop: 2.8.3
YARN
Reporter: Gary Yao
Fix For: 1.5.0
*Description*
Re-scaling a job with {{bin/flink modify -p <new_parallelism>}} sporadically
fails with a {{KeeperException}}
*Steps to reproduce*
# Submit job to Flink cluster running on YARN (session mode).
# Re-scale job (5-20 times)
*Stacktrace (client)*
{noformat}
org.apache.flink.util.FlinkException: Could not rescale job
61e2e99db2e959ebd94e40f9c5e816bc.
at
org.apache.flink.client.cli.CliFrontend.lambda$modify$8(CliFrontend.java:766)
at
org.apache.flink.client.cli.CliFrontend.runClusterAction(CliFrontend.java:954)
at org.apache.flink.client.cli.CliFrontend.modify(CliFrontend.java:757)
at
org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1037)
at
org.apache.flink.client.cli.CliFrontend.lambda$main$9(CliFrontend.java:1095)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1836)
at
org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1095)
Caused by: java.util.concurrent.CompletionException:
org.apache.flink.runtime.jobmaster.exceptions.JobModificationException: Could
not restore from temporary rescaling savepoint. This might indicate that the
savepoint
hdfs://172.31.33.72:9000/flinkha/savepoints/savepoint-61e2e9-fdb3d05a0035 got
corrupted. Deleting this savepoint as a precaution.
at
org.apache.flink.runtime.jobmaster.JobMaster.lambda$rescaleOperators$3(JobMaster.java:525)
at
java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:822)
at
java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:797)
at
java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:295)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:150)
at
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleMessage(FencedAkkaRpcActor.java:66)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.lambda$onReceive$1(AkkaRpcActor.java:132)
at
akka.actor.ActorCell$$anonfun$become$1.applyOrElse(ActorCell.scala:544)
at akka.actor.Actor$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$WorkQueue.runTask(ForkJoinPool.java:1339)
at
scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at
scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by:
org.apache.flink.runtime.jobmaster.exceptions.JobModificationException: Could
not restore from temporary rescaling savepoint. This might indicate that the
savepoint
hdfs://172.31.33.72:9000/flinkha/savepoints/savepoint-61e2e9-fdb3d05a0035 got
corrupted. Deleting this savepoint as a precaution.
at
org.apache.flink.runtime.jobmaster.JobMaster.lambda$restoreExecutionGraphFromRescalingSavepoint$17(JobMaster.java:1317)
at
java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)
at
java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
at
java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.util.ConcurrentModificationException: ZooKeeper unexpectedly
modified
at
org.apache.flink.runtime.zookeeper.ZooKeeperStateHandleStore.addAndLock(ZooKeeperStateHandleStore.java:168)
at
org.apache.flink.runtime.checkpoint.ZooKeeperCompletedCheckpointStore.addCheckpoint(ZooKeeperCompletedCheckpointStore.java:233)
at
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreSavepoint(CheckpointCoordinator.java:1088)
at
org.apache.flink.runtime.jobmaster.JobMaster.tryRestoreExecutionGraphFromSavepoint(JobMaster.java:1161)
at
org.apache.flink.runtime.jobmaster.JobMaster.lambda$restoreExecutionGraphFromRescalingSavepoint$17(JobMaster.java:1297)
... 10 more
Caused by:
org.apache.flink.shaded.zookeeper.org.apache.zookeeper.KeeperException$NodeExistsException:
KeeperErrorCode = NodeExists
at
org.apache.flink.shaded.zookeeper.org.apache.zookeeper.KeeperException.create(KeeperException.java:119)
at
org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper.multiInternal(ZooKeeper.java:1006)
at
org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ZooKeeper.multi(ZooKeeper.java:910)
at
org.apache.flink.shaded.curator.org.apache.curator.framework.imps.CuratorTransactionImpl.doOperation(CuratorTransactionImpl.java:159)
at
org.apache.flink.shaded.curator.org.apache.curator.framework.imps.CuratorTransactionImpl.access$200(CuratorTransactionImpl.java:44)
at
org.apache.flink.shaded.curator.org.apache.curator.framework.imps.CuratorTransactionImpl$2.call(CuratorTransactionImpl.java:129)
at
org.apache.flink.shaded.curator.org.apache.curator.framework.imps.CuratorTransactionImpl$2.call(CuratorTransactionImpl.java:125)
at
org.apache.flink.shaded.curator.org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:109)
at
org.apache.flink.shaded.curator.org.apache.curator.framework.imps.CuratorTransactionImpl.commit(CuratorTransactionImpl.java:122)
at
org.apache.flink.runtime.zookeeper.ZooKeeperStateHandleStore.addAndLock(ZooKeeperStateHandleStore.java:162)
... 14 more
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