Re: Cluster execution - Jobmanager unreachable

Wed, 11 Feb 2015 02:13:20 -0800

I just tried Till's fix, rebased to the latest master and got a whole lot of these exceptions right away:
java.lang.Exception: The slot in which the task was scheduled has been killed (probably loss of TaskManager). at org.apache.flink.runtime.instance.SimpleSlot.cancel(SimpleSlot.java:98) at org.apache.flink.runtime.jobmanager.scheduler.SlotSharingGroupAssignment.releaseSimpleSlot(SlotSharingGroupAssignment.java:320) at org.apache.flink.runtime.jobmanager.scheduler.SlotSharingGroupAssignment.releaseSharedSlot(SlotSharingGroupAssignment.java:304) at org.apache.flink.runtime.instance.SharedSlot.releaseSlot(SharedSlot.java:106) at org.apache.flink.runtime.instance.Instance.markDead(Instance.java:148) at org.apache.flink.runtime.instance.InstanceManager.shutdown(InstanceManager.java:111) at org.apache.flink.runtime.jobmanager.JobManager.postStop(JobManager.scala:132) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1.org$apache$flink$runtime$jobmanager$WithWebServer$$super$postStop(JobManager.scala:559) at org.apache.flink.runtime.jobmanager.WithWebServer$class.postStop(WithWebServer.scala:38) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1.postStop(JobManager.scala:559) 
    at akka.actor.Actor$class.preRestart(Actor.scala:533)
at org.apache.flink.runtime.jobmanager.JobManager.preRestart(JobManager.scala:80) 
    at akka.actor.Actor$class.aroundPreRestart(Actor.scala:480)
at org.apache.flink.runtime.jobmanager.JobManager.aroundPreRestart(JobManager.scala:80) at akka.actor.dungeon.FaultHandling$class.faultRecreate(FaultHandling.scala:67) 
    at akka.actor.ActorCell.faultRecreate(ActorCell.scala:369)
    at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:459)
    at akka.actor.ActorCell.systemInvoke(ActorCell.scala:478)
    at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:279)
    at akka.dispatch.Mailbox.run(Mailbox.scala:220)
    at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) 

the following is an exempt from the jobmanager log:


10:47:13,567 ERROR 
akka.actor.OneForOneStrategy                                  - Received 
unknown message RequestArchivedJobs

java.lang.RuntimeException: Received unknown message RequestArchivedJobs

    at 
org.apache.flink.runtime.jobmanager.JobManager.unhandled(JobManager.scala:510)

    at akka.actor.Actor$$anonfun$aroundReceive$1.apply(Actor.scala:465)
    at akka.actor.Actor$$anonfun$aroundReceive$1.apply(Actor.scala:465)
    at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)

    at 
org.apache.flink.runtime.ActorLogMessages$$anon$1.applyOrElse(ActorLogMessages.scala:30)

    at akka.actor.Actor$class.aroundReceive(Actor.scala:465)

    at 
org.apache.flink.runtime.jobmanager.JobManager.aroundReceive(JobManager.scala:80)

    at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
    at akka.actor.ActorCell.invoke(ActorCell.scala:487)
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
    at akka.dispatch.Mailbox.run(Mailbox.scala:221)
    at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
    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)
10:47:13,569 INFO 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Stopping webserver.
10:47:13,620 WARN 
org.eclipse.jetty.util.log                                    - /jobsInfo

org.eclipse.jetty.io.RuntimeIOException: org.eclipse.jetty.io.EofException

    at 
org.eclipse.jetty.io.UncheckedPrintWriter.setError(UncheckedPrintWriter.java:107)
    at 
org.eclipse.jetty.io.UncheckedPrintWriter.write(UncheckedPrintWriter.java:280)
    at 
org.eclipse.jetty.io.UncheckedPrintWriter.write(UncheckedPrintWriter.java:295)
    at 
org.eclipse.jetty.io.UncheckedPrintWriter.print(UncheckedPrintWriter.java:460)
    at 
org.apache.flink.runtime.jobmanager.web.JobManagerInfoServlet.doGet(JobManagerInfoServlet.java:158)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)

    at 
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:532)
    at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
    at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
    at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:965)
    at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:388)
    at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:187)
    at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:901)
    at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
    at 
org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:47)
    at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:113)

    at org.eclipse.jetty.server.Server.handle(Server.java:352)

    at 
org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:596)
    at 
org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1048)

    at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:549)

    at 
org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:211)
    at 
org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:425)
    at 
org.eclipse.jetty.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:489)
    at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:436)

    at java.lang.Thread.run(Thread.java:745)
Caused by: org.eclipse.jetty.io.EofException
    at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:142)
    at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:86)

    at 
java.io.ByteArrayOutputStream.writeTo(ByteArrayOutputStream.java:167)

    at org.eclipse.jetty.server.HttpWriter.write(HttpWriter.java:258)
    at org.eclipse.jetty.server.HttpWriter.write(HttpWriter.java:107)

    at 
org.eclipse.jetty.io.UncheckedPrintWriter.write(UncheckedPrintWriter.java:271)

    ... 24 more

10:47:13,623 INFO 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Stopped webserver.
10:47:13,624 INFO 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Stopping job manager akka://flink/user/jobmanager.
10:47:13,624 INFO 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Starting job manager at akka://flink/user/jobmanager.
10:47:13,625 INFO 
org.apache.flink.runtime.blob.BlobServer                      - Started 
BLOB server on port 34038
10:47:13,625 INFO 
org.apache.flink.runtime.blob.BlobServer                      - Created 
BLOB server storage directory 
/tmp/blobStore-88f5ebb0-15e2-47a6-ad56-fb2970d83ee2
10:47:13,626 INFO 
org.apache.flink.runtime.jobmanager.web.WebInfoServer         - Setting 
up web info server, using web-root directoryjar:file: ...
10:47:13,626 INFO 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Started job manager. Waiting for incoming messages.
10:47:13,626 INFO 
org.apache.flink.runtime.jobmanager.web.WebInfoServer         - Web info 
server will display information about flink job-manager on ...
10:47:13,627 INFO 
org.apache.flink.runtime.jobmanager.web.WebInfoServer         - Starting 
web info server for JobManager on port ...
10:47:13,627 INFO 
org.eclipse.jetty.util.log                                    - 
jetty-0.9-SNAPSHOT
10:47:13,738 INFO 
org.eclipse.jetty.util.log                                    - Started 
SelectChannelConnector@0.0.0.0:8082
10:47:14,032 ERROR 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Cannot find execution graph for job ID 1e0c0e5a1a7a741a1182791ea597ba7e.
10:47:14,068 ERROR 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Cannot find execution graph for job ID 1e0c0e5a1a7a741a1182791ea597ba7e.
10:47:14,069 ERROR 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Cannot find execution graph for job ID 1e0c0e5a1a7a741a1182791ea597ba7e.
10:47:14,107 ERROR 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$main$1$$anon$1 - 
Cannot find execution graph for job ID 1e0c0e5a1a7a741a1182791ea597ba7e.



On 05.02.2015 11:09, Till Rohrmann wrote:

I checked and indeed the scheduleOrUpdateConsumers method can throw an
IllegalStateException without properly handling such an exception on the
JobManager level.

It is a design decision of Scala not to complain about unhandled exceptions
which are otherwise properly annotated in Java code. We should definitely
pay attention in Scala to properly handle thrown exceptions of Java code.

On Thu, Feb 5, 2015 at 10:42 AM, Stephan Ewen <se...@apache.org> wrote:


I suspect that this is one of the cases where an exception in an actor
causes the actor to die (here the job manager)

On Thu, Feb 5, 2015 at 10:40 AM, Till Rohrmann <trohrm...@apache.org>
wrote:


It looks to me that the TaskManager does not receive a
ConsumerNotificationResult after having send the

ScheduleOrUpdateConsumers

message. This can either mean that something went wrong in
ExecutionGraph.scheduleOrUpdateConsumers method or the connection was
disassociated for some reasons. The logs would indeed be very helpful to
understand what happened.

On Thu, Feb 5, 2015 at 10:36 AM, Ufuk Celebi <u...@apache.org> wrote:


Hey Chesnay,

I will look into it. Can you share the complete LOGs?

– Ufuk

On 04 Feb 2015, at 14:49, Chesnay Schepler <

chesnay.schep...@fu-berlin.de>

wrote:


Hello,

I'm trying to run python jobs with the latest master on a cluster and

get the following exception:

Error: The program execution failed: JobManager not reachable

anymore.

Terminate waiting for job answer.

org.apache.flink.client.program.ProgramInvocationException: The

program

execution failed: JobManager not reachable anymore. Terminate waiting

for

job answer.

    at org.apache.flink.client.program.Client.run(Client.java:345)
    at org.apache.flink.client.program.Client.run(Client.java:304)
    at org.apache.flink.client.program.Client.run(Client.java:298)
    at

org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:55)

    at

org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:677)

    at

org.apache.flink.languagebinding.api.java.python.PythonPlanBinder.runPlan(PythonPlanBinder.java:106)

    at

org.apache.flink.languagebinding.api.java.python.PythonPlanBinder.main(PythonPlanBinder.java:79)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at

sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

    at

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:606)
    at

org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:437)

    at

org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:353)

    at org.apache.flink.client.program.Client.run(Client.java:250)
    at

org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:387)

    at org.apache.flink.client.CliFrontend.run(CliFrontend.java:356)
    at

org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1066)

    at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1090)

In the jobmanager log file i find this exception:

java.lang.IllegalStateException: Buffer has already been recycled.
        at

org.apache.flink.shaded.com.google.common.base.Preconditions.checkState(Preconditions.java:176)

        at

org.apache.flink.runtime.io.network.buffer.Buffer.ensureNotRecycled(Buffer.java:131)

        at

org.apache.flink.runtime.io.network.buffer.Buffer.setSize(Buffer.java:95)

        at

org.apache.flink.runtime.io.network.api.serialization.SpanningRecordSerializer.getCurrentBuffer(SpanningRecordSerializer.java:151)

        at

org.apache.flink.runtime.io.network.api.writer.RecordWriter.clearBuffers(RecordWriter.java:158)

        at

org.apache.flink.runtime.operators.RegularPactTask.clearWriters(RegularPactTask.java:1533)

        at

org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:367)

        at

org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:204)

        at java.lang.Thread.run(Thread.java:745)

the same exception is in the task manager logs, along with the

following

one:

java.util.concurrent.TimeoutException: Futures timed out after [100

seconds]

        at

scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)

        at

scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)

        at

scala.concurrent.Await$$anonfun$result$1.apply(package.scala:107)

        at

scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)

        at scala.concurrent.Await$.result(package.scala:107)
        at

org.apache.flink.runtime.akka.AkkaUtils$.ask(AkkaUtils.scala:265)

        at

org.apache.flink.runtime.akka.AkkaUtils.ask(AkkaUtils.scala)

        at

org.apache.flink.runtime.io.network.partition.IntermediateResultPartition.scheduleOrUpdateConsumers(IntermediateResultPartition.java:247)

        at

org.apache.flink.runtime.io.network.partition.IntermediateResultPartition.maybeNotifyConsumers(IntermediateResultPartition.java:240)

        at

org.apache.flink.runtime.io.network.partition.IntermediateResultPartition.add(IntermediateResultPartition.java:144)

        at

org.apache.flink.runtime.io.network.api.writer.BufferWriter.writeBuffer(BufferWriter.java:74)

        at

org.apache.flink.runtime.io.network.api.writer.RecordWriter.emit(RecordWriter.java:91)

        at

org.apache.flink.runtime.operators.shipping.OutputCollector.collect(OutputCollector.java:88)

        at

org.apache.flink.languagebinding.api.java.common.streaming.Receiver.collectBuffer(Receiver.java:253)

        at

org.apache.flink.languagebinding.api.java.common.streaming.Streamer.streamBufferWithoutGroups(Streamer.java:193)

        at

org.apache.flink.languagebinding.api.java.python.functions.PythonMapPartition.mapPartition(PythonMapPartition.java:54)

        at

org.apache.flink.runtime.operators.MapPartitionDriver.run(MapPartitionDriver.java:98)

        at

org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:496)

        at

org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:360)

        at

org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:204)

        at java.lang.Thread.run(Thread.java:745)



























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