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Re: Cancel flink job occur exception.


Hi Gary,

Hi Gary, your guess about the scene is correct.
We encountered this problem a month or two ago (sorry, there is no context
log, but I think the problem is clear and not difficult to reproduce),
we will directly split it into trigger savepoint and cancel operation.
Devin worked with me at the same company (Tencent) but not in a department.
When I answered his question, he contacted me privately.
I suggested that he temporarily solve this problem in our way.

I have created an issue to follow it.[1]

[1]: https://issues.apache.org/jira/browse/FLINK-10309

Thanks, vino.

Gary Yao <gary@xxxxxxxxxxxxxxxxx> 于2018年9月9日周日 下午1:13写道:

> Hi Devin,
>
> If I understand you correctly, you are submitting a job in the YARN per-job
> cluster mode. You are then invoking the "cancel with savepoint" command but
> the client is not able to poll for the savepoint location before the
> cluster
> shuts down.
>
> I think your analysis is correct. As far as I can see, we do not wait for
> the
> poll to happen before we shut down the cluster. In the session mode this is
> not a problem because the cluster will continue to run. Can you open a JIRA
> issue?
>
> Best,
> Gary
>
>
> On Fri, Sep 7, 2018 at 5:46 PM, Till Rohrmann <trohrmann@xxxxxxxxxx>
> wrote:
>
> > Hi Vino and Devin,
> >
> > could you maybe send us the cluster entrypoint and client logs once you
> > observe the exception? That way it will be possible to debug it.
> >
> > Cheers,
> > Till
> >
> > On Tue, Sep 4, 2018 at 2:26 PM vino yang <yanghua1127@xxxxxxxxx> wrote:
> >
> > > Hi Devin,
> > >
> > > Why do you trigger cancel with savepoint immediately after the job
> status
> > > changes to Deployed? A more secure way is to wait for the job to become
> > > running after it has been running for a while before triggering.
> > >
> > > We have also encountered before, there will be a case where the client
> > > times out or still tries to connect to the closed JM after RestClient
> > calls
> > > cancel with savepoint.
> > >
> > > Thanks, vino.
> > >
> > > devinduan(段丁瑞) <devinduan@xxxxxxxxxxx> 于2018年9月4日周二 下午6:22写道:
> > >
> > > > Hi all,
> > > >       I submit a flink job through yarn-cluster mode and cancel job
> > with
> > > > savepoint option immediately after job status change to deployed.
> > > Sometimes
> > > > i met this error:
> > > >
> > > > org.apache.flink.util.FlinkException: Could not cancel job xxxx.
> > > >         at
> > > >
> > > org.apache.flink.client.cli.CliFrontend.lambda$cancel$4(
> > CliFrontend.java:585)
> > > >         at
> > > >
> > > org.apache.flink.client.cli.CliFrontend.runClusterAction(
> > CliFrontend.java:960)
> > > >         at
> > > > org.apache.flink.client.cli.CliFrontend.cancel(CliFrontend.java:577)
> > > >         at
> > > >
> > > org.apache.flink.client.cli.CliFrontend.parseParameters(
> > CliFrontend.java:1034)
> > > >         at java.lang.Thread.run(Thread.java:748)
> > > > Caused by: java.util.concurrent.ExecutionException:
> > > > org.apache.flink.runtime.concurrent.FutureUtils$RetryException: Could
> > not
> > > > complete the operation. Number of retries has been exhausted.
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture.reportGet(
> > CompletableFuture.java:357)
> > > >         at
> > > > java.util.concurrent.CompletableFuture.get(
> > CompletableFuture.java:1895)
> > > >         at
> > > >
> > > org.apache.flink.client.program.rest.RestClusterClient.
> > cancelWithSavepoint(RestClusterClient.java:398)
> > > >         at
> > > >
> > > org.apache.flink.client.cli.CliFrontend.lambda$cancel$4(
> > CliFrontend.java:583)
> > > >         ... 6 more
> > > > Caused by:
> > > org.apache.flink.runtime.concurrent.FutureUtils$RetryException:
> > > > Could not complete the operation. Number of retries has been
> exhausted.
> > > >         at
> > > >
> > > org.apache.flink.runtime.concurrent.FutureUtils.lambda$
> > retryOperationWithDelay$5(FutureUtils.java:213)
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture.uniWhenComplete(
> > CompletableFuture.java:760)
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(
> > CompletableFuture.java:736)
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture.postComplete(
> > CompletableFuture.java:474)
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture.completeExceptionally(
> > CompletableFuture.java:1977)
> > > >         at
> > > >
> > > org.apache.flink.runtime.rest.RestClient.lambda$
> > submitRequest$1(RestClient.java:274)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.
> > notifyListener0(DefaultPromise.java:680)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.
> > notifyListeners0(DefaultPromise.java:603)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.
> > notifyListeners(DefaultPromise.java:563)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.
> > tryFailure(DefaultPromise.java:424)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$
> > AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$
> > AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.
> > processSelectedKey(NioEventLoop.java:528)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.
> > processSelectedKeysOptimized(NioEventLoop.java:468)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.
> > processSelectedKeys(NioEventLoop.java:382)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.nio.
> > NioEventLoop.run(NioEventLoop.java:354)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.util.concurrent.
> > SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.util.concurrent.
> > DefaultThreadFactory$DefaultRunnableDecorator.run(
> > DefaultThreadFactory.java:137)
> > > >         ... 1 more
> > > > Caused by: java.util.concurrent.CompletionException:
> > > > java.net.ConnectException: Connect refuse: xxx/xxx.xxx.xxx.xxx:xxx
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture.encodeThrowable(
> > CompletableFuture.java:292)
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture.completeThrowable(
> > CompletableFuture.java:308)
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture.uniCompose(
> > CompletableFuture.java:943)
> > > >         at
> > > >
> > > java.util.concurrent.CompletableFuture$UniCompose.
> > tryFire(CompletableFuture.java:926)
> > > >         ... 16 more
> > > > Caused by: java.net.ConnectException: Connect refuse:
> > > > xxx/xxx.xxx.xxx.xxx:xxx
> > > >         at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > > >         at
> > > >
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.
> > socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
> > > >         at
> > > >
> > > org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$
> > AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281)
> > > >         ... 7 more
> > > >
> > > >     I check the jobmanager log, no error found. Savepoint is correct
> > > saved
> > > > in hdfs. Yarn appliction status changed to FINISHED and FinalStatus
> > > change
> > > > to KILLED.
> > > >     I think this issue occur because RestClusterClient cannot find
> > > > jobmanager addresss after Jobmanager(AM) has shutdown.
> > > >     My flink version is 1.5.3.
> > > >     Anyone could help me to resolve this issue, thanks!
> > > >
> > > > devin.
> > > >
> > > >
> > > >
> > > > ________________________________
> > > >
> > > >
> > >
> >
>