Verified, I think we just need to make sure that it is documented :) On Wed, Apr 24, 2019 at 9:47 AM Vishal Santoshi <vishal.santo...@gmail.com> wrote:
> This makes total sense and actually is smart ( defensive ). Will test and > report. I think though that this needs to be documented :) > > On Wed, Apr 24, 2019 at 6:03 AM Till Rohrmann <trohrm...@apache.org> > wrote: > >> Hi Vishal, >> >> it seems that the following is happening: You triggered the cancel with >> savepoint command from via the REST call. This command is an asynchronous >> operation which produces a result (the savepoint path). In order to deliver >> asynchronous results to the caller, Flink waits before shutting down until >> they are delivered or until it times out after 5 minutes. I assume that you >> don't request the savepoint path from Flink via the returned URL from the >> original request. This could either happen if you kill the CLI before its >> done or if you have written your own method to trigger this operation. >> >> I guess we could add a flag for asynchronous operations which tells Flink >> that their results don't need to get delivered to some client. If you would >> like to have such a feature, then please open a JIRA issue for it. >> >> Cheers, >> Till >> >> On Wed, Apr 24, 2019 at 3:49 AM Vishal Santoshi < >> vishal.santo...@gmail.com> wrote: >> >>> Anyione ? >>> >>> >>> >>> I think there some race condition . These are the TM logs.. I am >>> puzzled b'coz in a larger pipe ( there are about 32 lots on 8 replicas and >>> it works >>> >>> >>> >>> >>> 2019-04-24 01:16:20,889 DEBUG >>> org.apache.flink.runtime.state.TaskExecutorLocalStateStoresManager - >>> Releasing local state under allocation id 5a853ef886e1c599f86b9503306fffd2. >>> >>> 2019-04-24 01:16:20,894 DEBUG >>> org.apache.flink.runtime.taskexecutor.TaskExecutor - Close >>> JobManager connection for job 00000000000000000000000000000000. >>> >>> org.apache.flink.util.FlinkException: Stopping JobMaster for job >>> EventCountJob(00000000000000000000000000000000). >>> >>> at >>> org.apache.flink.runtime.jobmaster.JobMaster.onStop(JobMaster.java:355) >>> >>> at >>> org.apache.flink.runtime.rpc.akka.AkkaRpcActor$StartedState.terminate(AkkaRpcActor.java:504) >>> >>> at >>> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleControlMessage(AkkaRpcActor.java:170) >>> >>> 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) >>> >>> 2019-04-24 01:16:20,895 INFO >>> org.apache.flink.runtime.taskexecutor.JobLeaderService - Cannot >>> reconnect to job 00000000000000000000000000000000 because it is not >>> registered. >>> >>> 2019-04-24 01:16:21,053 DEBUG >>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>> Received heartbeat request from e61c2b7d992f151936e21db1ca06666d. >>> >>> 2019-04-24 01:16:22,136 DEBUG >>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>> Got ping response for sessionid: 0x25add5478fb2ec6 after 0ms >>> >>> 2019-04-24 01:16:31,052 DEBUG >>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>> Received heartbeat request from e61c2b7d992f151936e21db1ca06666d. >>> >>> 2019-04-24 01:16:35,483 DEBUG >>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>> Got ping response for sessionid: 0x25add5478fb2ec6 after 0ms >>> >>> On Tue, Apr 23, 2019 at 3:11 PM Vishal Santoshi < >>> vishal.santo...@gmail.com> wrote: >>> >>>> I see this in the TM pod >>>> >>>> 2019-04-23 19:08:41,828 DEBUG >>>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>>> Got ping response for sessionid: 0x15cc7f3d88466a5 after 0ms >>>> >>>> 2019-04-23 19:08:47,543 DEBUG >>>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>>> Received heartbeat request from 6b7dd7b5032c089bff8a77f75de65c22. >>>> >>>> 2019-04-23 19:08:55,175 DEBUG >>>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>>> Got ping response for sessionid: 0x15cc7f3d88466a5 after 1ms >>>> >>>> 2019-04-23 19:08:57,548 DEBUG >>>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>>> Received heartbeat request from 6b7dd7b5032c089bff8a77f75de65c22. >>>> >>>> 2019-04-23 19:09:07,543 DEBUG >>>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>>> Received heartbeat request from 6b7dd7b5032c089bff8a77f75de65c22. >>>> >>>> 2019-04-23 19:09:08,523 DEBUG >>>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>>> Got ping response for sessionid: 0x15cc7f3d88466a5 after 0ms >>>> >>>> 2019-04-23 19:09:17,542 DEBUG >>>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>>> Received heartbeat request from 6b7dd7b5032c089bff8a77f75de65c22. >>>> >>>> 2019-04-23 19:09:21,871 DEBUG >>>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>>> Got ping response for sessionid: 0x15cc7f3d88466a5 after 0ms >>>> >>>> 2019-04-23 19:09:27,543 DEBUG >>>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>>> Received heartbeat request from 6b7dd7b5032c089bff8a77f75de65c22. >>>> >>>> 2019-04-23 19:09:35,218 DEBUG >>>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>>> Got ping response for sessionid: 0x15cc7f3d88466a5 after 0ms >>>> >>>> 2019-04-23 19:09:37,542 DEBUG >>>> org.apache.flink.runtime.taskexecutor.TaskExecutor - >>>> Received heartbeat request from 6b7dd7b5032c089bff8a77f75de65c22. >>>> >>>> >>>> >>>> JM log has analogous.. >>>> >>>> >>>> 2019-04-23 19:10:49,218 DEBUG >>>> org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - >>>> Got ping response for sessionid: 0x25add5478fb2e7c after 0ms >>>> >>>> >>>> >>>> Does that ring a bell ? >>>> >>>> >>>> >>>> On Tue, Apr 23, 2019 at 2:04 PM Vishal Santoshi < >>>> vishal.santo...@gmail.com> wrote: >>>> >>>>> Adding the DEBUG logs from the time I call a REST based cancel with >>>>> save point... >>>>> >>>>> On Tue, Apr 23, 2019 at 2:01 PM Vishal Santoshi < >>>>> vishal.santo...@gmail.com> wrote: >>>>> >>>>>> Though looking at >>>>>> https://github.com/apache/flink/blob/master/flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/StandaloneResourceManager.java#L88 >>>>>> it >>>>>> does seem that the last log . is expected. >>>>>> >>>>>> Not sure what part is hanging... I have more logs I can share... >>>>>> >>>>>> On Tue, Apr 23, 2019 at 1:59 PM Vishal Santoshi < >>>>>> vishal.santo...@gmail.com> wrote: >>>>>> >>>>>>> I am seeing this weird issue where I do a save point with cancel on >>>>>>> a job on k8s and it hangs for 5 minutes ( no INFO logs ) and then exits >>>>>>> with code of 2. >>>>>>> >>>>>>> >>>>>>> 2019-04-23 17:36:31,372 INFO >>>>>>> org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint - >>>>>>> Shutting down rest endpoint. >>>>>>> >>>>>>> 2019-04-23 17:36:31,374 INFO >>>>>>> org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalService >>>>>>> - Stopping ZooKeeperLeaderRetrievalService >>>>>>> /leader/resource_manager_lock. >>>>>>> >>>>>>> 2019-04-23 17:36:31,377 INFO >>>>>>> org.apache.flink.runtime.jobmaster.slotpool.SlotPoolImpl - >>>>>>> Suspending SlotPool. >>>>>>> >>>>>>> 2019-04-23 17:36:31,378 DEBUG >>>>>>> org.apache.flink.runtime.jobmaster.JobMaster - >>>>>>> Close ResourceManager connection 181a4fd61044033a2ea32e384096247f. >>>>>>> >>>>>>> org.apache.flink.util.FlinkException: JobManager is shutting down. >>>>>>> >>>>>>> at >>>>>>> org.apache.flink.runtime.jobmaster.JobMaster.onStop(JobMaster.java:365) >>>>>>> >>>>>>> at >>>>>>> org.apache.flink.runtime.rpc.akka.AkkaRpcActor$StartedState.terminate(AkkaRpcActor.java:504) >>>>>>> >>>>>>> at >>>>>>> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleControlMessage(AkkaRpcActor.java:170) >>>>>>> >>>>>>> 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$WorkQueue.runTask(ForkJoinPool.java:1339) >>>>>>> >>>>>>> at >>>>>>> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) >>>>>>> >>>>>>> at >>>>>>> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) >>>>>>> >>>>>>> 2019-04-23 17:36:31,381 INFO >>>>>>> org.apache.flink.runtime.jobmaster.slotpool.SlotPoolImpl - >>>>>>> Stopping SlotPool. >>>>>>> >>>>>>> 2019-04-23 17:36:31,381 INFO >>>>>>> org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - >>>>>>> Disconnect job manager a41a5dceae5ad3664ff1f0b79f3e47ef >>>>>>> @akka.tcp://flink@kafka-to-prometheus:6123/user/jobmanager_0 for >>>>>>> job 00000000000000000000000000000000 from the resource manager. >>>>>>> >>>>>>> 2019-04-23 17:36:31,385 INFO >>>>>>> org.apache.flink.runtime.leaderelection.ZooKeeperLeaderElectionService >>>>>>> - Stopping ZooKeeperLeaderElectionService >>>>>>> ZooKeeperLeaderElectionService{leaderPath='/leader/00000000000000000000000000000000/job_manager_lock'}. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> and after 5 minutes .. >>>>>>> >>>>>>> >>>>>>> >>>>>>> 019-04-23 17:41:32,187 DEBUG >>>>>>> org.apache.flink.shaded.netty4.io.netty.buffer.PoolThreadCache - >>>>>>> Freed 8 thread-local buffer(s) from thread: Finalizer >>>>>>> >>>>>>> 2019-04-23 17:41:32,198 INFO >>>>>>> org.apache.flink.runtime.rpc.akka.AkkaRpcService - >>>>>>> Stopped Akka RPC service. >>>>>>> >>>>>>> 2019-04-23 17:41:32,200 INFO >>>>>>> org.apache.flink.runtime.entrypoint.ClusterEntrypoint >>>>>>> - Terminating cluster entrypoint process >>>>>>> StandaloneJobClusterEntryPoint with exit code 2. >>>>>>> >>>>>>> java.util.concurrent.TimeoutException >>>>>>> >>>>>>> at >>>>>>> org.apache.flink.runtime.concurrent.FutureUtils$Timeout.run(FutureUtils.java:942) >>>>>>> >>>>>>> at >>>>>>> org.apache.flink.runtime.concurrent.DirectExecutorService.execute(DirectExecutorService.java:211) >>>>>>> >>>>>>> at >>>>>>> org.apache.flink.runtime.concurrent.FutureUtils.lambda$orTimeout$11(FutureUtils.java:360) >>>>>>> >>>>>>> at >>>>>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> In the interim, I get this at a regular clip >>>>>>> >>>>>>> >>>>>>> >>>>>>> 2019-04-23 17:37:02,452 DEBUG >>>>>>> org.apache.flink.runtime.resourcemanager.slotmanager.SlotManager - >>>>>>> Release TaskExecutor 3752235c49428b94a0520f04266973eb because it >>>>>>> exceeded >>>>>>> the idle timeout. >>>>>>> >>>>>>> 2019-04-23 17:37:02,453 DEBUG >>>>>>> org.apache.flink.runtime.resourcemanager.StandaloneResourceManager - >>>>>>> Worker 68c5fbd67ac2bbe6fc35ed068ce1c4b1 could not be stopped. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> Any ideas as to whether it is this inability to shut down the Worker >>>>>>> that is causing this issue ? >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> Regards. >>>>>>> >>>>>>
