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https://issues.apache.org/jira/browse/FLINK-10671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16674975#comment-16674975
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Gary Yao edited comment on FLINK-10671 at 11/5/18 11:05 AM:
------------------------------------------------------------
[[email protected]], could it be that you are using 1.6.0? This looks like a
duplicate of FLINK-10193, which got fixed in 1.6.1. I am unable to reproduce
the problem in 1.6.1 using the {{SlowToCheckpoint}} job, which is attached to
FLINK-10193. The job artificially slows down the {{snapshotState}} callback by
a configurable amount of time.
flink-conf.yaml
{noformat}
akka.ask.timeout: 20 s
{noformat}
Commands to submit and take savepoint:
{code}
bin/flink run -d -c com.github.uce.SlowToCheckpoint testjob.jar
--checkpointDuration 45000
bin/flink cancel -s file:///tmp/flink-savepoints <job-id>
{code}
If your version is indeed 1.6.1, please add more information on how to
reproduce the problem (preferably using the {{SlowToCheckpoint}} job).
was (Author: gjy):
[[email protected]], could it be that you are using 1.6.0? This looks like a
duplicate of FLINK-10193, which got fixed in 1.6.1. I am unable to reproduce
the problem in 1.6.1 using the {{SlowToCheckpoint}} job that is attached to
FLINK-10193. The job artificially slows down the {{snapshotState}} callback by
a configurable amount of time.
flink-conf.yaml
{noformat}
akka.ask.timeout: 20 s
{noformat}
Commands to submit and take savepoint:
{code}
bin/flink run -d -c com.github.uce.SlowToCheckpoint testjob.jar
--checkpointDuration 45000
bin/flink cancel -s file:///tmp/flink-savepoints <job-id>
{code}
If your version is indeed 1.6.1, please add more information on how to
reproduce the problem (preferably using the {{SlowToCheckpoint}} job).
> rest monitoring api Savepoint status call fails if akka.ask.timeout <
> checkpoint duration
> -----------------------------------------------------------------------------------------
>
> Key: FLINK-10671
> URL: https://issues.apache.org/jira/browse/FLINK-10671
> Project: Flink
> Issue Type: Bug
> Components: REST
> Affects Versions: 1.6.1
> Reporter: Cliff Resnick
> Assignee: Gary Yao
> Priority: Minor
>
> Hi,
>
> There seems to be a problem with REST monitoring API:
> |/jobs/:jobid/savepoints/:triggerid|
>
> The problem is that when the Savepoint represented by :triggerid is called
> with `cancel=true` the above status call seems to fail if the savepoint
> duration exceeds `akka.ask.timeout` value.
>
> Below is a log in which I invoke "cancel with savepoint" then poll the above
> endpoint for status at 2 second intervals. akka.ask.timout is set for twenty
> seconds. The error is repeatable at various values of akka.ask.timeout.
>
> 2018/10/24 19:42:25 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:27 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:29 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:31 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:33 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:35 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:37 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:39 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:41 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:43 savepoint id 925964b35b2d501f4a45b714eca0a2ca is
> IN_PROGRESS
> 2018/10/24 19:42:45 Cancel with Savepoint may have failed:
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException:
> Ask timed out on [Actor[akka://flink/user/jobmanager_0#-234856817]] after
> [20000 ms]. Sender[null] sent message of type
> "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at
> java.util.concurrent.CompletableFuture.encodeRelay(CompletableFuture.java:326)
> at
> java.util.concurrent.CompletableFuture.completeRelay(CompletableFuture.java:338)
> at java.util.concurrent.CompletableFuture.uniRelay(CompletableFuture.java:911)
> at
> java.util.concurrent.CompletableFuture$UniRelay.tryFire(CompletableFuture.java:899)
> at
> java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
> at
> java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
> at
> org.apache.flink.runtime.concurrent.FutureUtils$1.onComplete(FutureUtils.java:770)
> at akka.dispatch.OnComplete.internal(Future.scala:258)
> at akka.dispatch.OnComplete.internal(Future.scala:256)
> at akka.dispatch.japi$CallbackBridge.apply(Future.scala:186)
> at akka.dispatch.japi$CallbackBridge.apply(Future.scala:183)
> at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36)
> at
> org.apache.flink.runtime.concurrent.Executors$DirectExecutionContext.execute(Executors.java:83)
> at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:44)
> at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:252)
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:603)
> at akka.actor.Scheduler$$anon$4.run(Scheduler.scala:126)
> at
> scala.concurrent.Future$InternalCallbackExecutor$.unbatchedExecute(Future.scala:601)
> at scala.concurrent.BatchingExecutor$class.execute(BatchingExecutor.scala:109)
> at scala.concurrent.Future$InternalCallbackExecutor$.execute(Future.scala:599)
> at
> akka.actor.LightArrayRevolverScheduler$TaskHolder.executeTask(LightArrayRevolverScheduler.scala:329)
> at
> akka.actor.LightArrayRevolverScheduler$$anon$4.executeBucket$1(LightArrayRevolverScheduler.scala:280)
> at
> akka.actor.LightArrayRevolverScheduler$$anon$4.nextTick(LightArrayRevolverScheduler.scala:284)
> at
> akka.actor.LightArrayRevolverScheduler$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on
> [Actor[akka://flink/user/jobmanager_0#-234856817]] after [20000 ms].
> Sender[null] sent message of type
> "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
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