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https://issues.apache.org/jira/browse/FLINK-10309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16608787#comment-16608787
]
Till Rohrmann commented on FLINK-10309:
---------------------------------------
I think one way to solve this problem is to block on unserved results when
shutting down the REST endpoint. This applies not only to the savepoint path
but also the job result.
> Cancel flink job occurs java.net.ConnectException
> -------------------------------------------------
>
> Key: FLINK-10309
> URL: https://issues.apache.org/jira/browse/FLINK-10309
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination, REST
> Affects Versions: 1.5.3, 1.6.0, 1.7.0
> Reporter: vinoyang
> Priority: Critical
> Fix For: 1.7.0
>
>
> exception stack trace :
> {code:java}
> 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
> {code}
> some discussion in mailing list :
> http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Cancel-flink-job-occur-exception-td24056.html
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