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Posted to issues@flink.apache.org by "Till Rohrmann (JIRA)" <ji...@apache.org> on 2018/09/14 22:05:01 UTC
[jira] [Resolved] (FLINK-10314) Blocking calls in Execution Graph
creation bring down cluster
[ https://issues.apache.org/jira/browse/FLINK-10314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Till Rohrmann resolved FLINK-10314.
-----------------------------------
Resolution: Fixed
Fixed via
1.7.0: 199f1758e9bdbdc316ec7168791a8e95373159a6
1.6.1: 6002945cef7c041f9742b860f3243dba263807ac
1.5.4: d092fd75ee89043bac4c004acd1acf3082c9daf1
> Blocking calls in Execution Graph creation bring down cluster
> -------------------------------------------------------------
>
> Key: FLINK-10314
> URL: https://issues.apache.org/jira/browse/FLINK-10314
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination, JobManager
> Affects Versions: 1.5.2, 1.6.0
> Reporter: Stephan Ewen
> Assignee: Till Rohrmann
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.6.1, 1.7.0, 1.5.4
>
>
> When the execution graph creation has long calls (or blocking calls), it brings down the cluster. It seems to block the main actor thread of the dispatcher, making the entire cluster unresponsive (web UI, etc.)
> h3. Reproducing
> One way to reproduce this is to use a FileSystem that blocks on initialization or on opening a stream.
> h3. Full Exception Log
> {code}
> at com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystemBase.initialize(GoogleHadoopFileSystemBase.java:1022)
> at com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystemBase.initialize(GoogleHadoopFileSystemBase.java:985)
> at org.apache.flink.runtime.fs.hdfs.HadoopFsFactory.create(HadoopFsFactory.java:159)
> at org.apache.flink.core.fs.FileSystem.getUnguardedFileSystem(FileSystem.java:399)
> at org.apache.flink.core.fs.FileSystem.get(FileSystem.java:318)
> at org.apache.flink.core.fs.Path.getFileSystem(Path.java:298)
> at org.apache.flink.runtime.state.filesystem.FsCheckpointStorage.<init>(FsCheckpointStorage.java:61)
> at org.apache.flink.runtime.state.filesystem.FsStateBackend.createCheckpointStorage(FsStateBackend.java:443)
> at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.<init>(CheckpointCoordinator.java:248)
> at org.apache.flink.runtime.executiongraph.ExecutionGraph.enableCheckpointing(ExecutionGraph.java:495)
> at org.apache.flink.runtime.executiongraph.ExecutionGraphBuilder.buildGraph(ExecutionGraphBuilder.java:345)
> at org.apache.flink.runtime.executiongraph.ExecutionGraphBuilder.buildGraph(ExecutionGraphBuilder.java:100)
> at org.apache.flink.runtime.jobmaster.JobMaster.createExecutionGraph(JobMaster.java:1152)
> at org.apache.flink.runtime.jobmaster.JobMaster.createAndRestoreExecutionGraph(JobMaster.java:1132)
> at org.apache.flink.runtime.jobmaster.JobMaster.<init>(JobMaster.java:295)
> at org.apache.flink.runtime.jobmaster.JobManagerRunner.<init>(JobManagerRunner.java:157)
> at org.apache.flink.runtime.dispatcher.Dispatcher$DefaultJobManagerRunnerFactory.createJobManagerRunner(Dispatcher.java:936)
> at org.apache.flink.runtime.dispatcher.Dispatcher.createJobManagerRunner(Dispatcher.java:291)
> at org.apache.flink.runtime.dispatcher.Dispatcher.runJob(Dispatcher.java:281)
> at org.apache.flink.runtime.dispatcher.Dispatcher.persistAndRunJob(Dispatcher.java:266)
> at org.apache.flink.runtime.dispatcher.Dispatcher$$Lambda$108/1800332159.acceptWithException(Unknown Source)
> at org.apache.flink.util.function.ConsumerWithException.accept(ConsumerWithException.java:38)
> at org.apache.flink.runtime.dispatcher.Dispatcher.lambda$waitForTerminatingJobManager$29(Dispatcher.java:820)
> at org.apache.flink.runtime.dispatcher.Dispatcher$$Lambda$110/1318857678.run(Unknown Source)
> at java.util.concurrent.CompletableFuture.uniRun(CompletableFuture.java:705)
> at java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:687)
> at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
> As a result, everything becomes unresponsive and breaks, and log is full of these errors:
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:06:58,679 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:08,629 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:08,663 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:08,679 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:08,700 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:18,712 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:18,729 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:28,739 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:28,749 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:38,709 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:38,729 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:38,769 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:38,778 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:48,788 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> 2018-08-24 17:07:48,799 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler - Could not retrieve the redirect address.
> java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:593)
> at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
> 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$$anon$4.run(LightArrayRevolverScheduler.scala:236)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#146546706]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
> at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
> ... 9 more
> {code}
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