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https://issues.apache.org/jira/browse/FLINK-22483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17391813#comment-17391813
]
Eduardo Winpenny Tejedor commented on FLINK-22483:
--------------------------------------------------
Ok [~dmvk], it's a shame though. Let me know if I can assist at any stage with
this story.
> Recover checkpoints when JobMaster gains leadership
> ---------------------------------------------------
>
> Key: FLINK-22483
> URL: https://issues.apache.org/jira/browse/FLINK-22483
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.13.0
> Reporter: Robert Metzger
> Assignee: Eduardo Winpenny Tejedor
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.14.0
>
>
> Recovering checkpoints (from the CompletedCheckpointStore) is a potentially
> long-lasting/blocking operation, for example if the file system
> implementation is retrying to connect to a unavailable storage backend.
> Currently, we are calling the CompletedCheckpointStore.recover() method from
> the main thread of the JobManager, making it unresponsive to any RPC call
> while the recover method is blocked:
> {code}
> 2021-04-02 20:33:31,384 INFO
> org.apache.flink.runtime.executiongraph.ExecutionGraph [] - Job XXX
> switched from state RUNNING to RESTARTING.
> com.amazonaws.SdkClientException: Unable to execute HTTP request: Connect to
> minio.minio.svc:9000 [minio.minio.svc/XXXX] failed: Connection refused
> (Connection refused)
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleRetryableException(AmazonHttpClient.java:1207)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1153)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:802)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:770)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:744)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:704)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:686)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:550) ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:530) ~[?:?]
> at
> com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:5062)
> ~[?:?]
> at
> com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:5008)
> ~[?:?]
> at
> com.amazonaws.services.s3.AmazonS3Client.getObject(AmazonS3Client.java:1490)
> ~[?:?]
> at
> com.facebook.presto.hive.s3.PrestoS3FileSystem$PrestoS3InputStream.lambda$openStream$1(PrestoS3FileSystem.java:905)
> ~[?:?]
> at com.facebook.presto.hive.RetryDriver.run(RetryDriver.java:138) ~[?:?]
> at
> com.facebook.presto.hive.s3.PrestoS3FileSystem$PrestoS3InputStream.openStream(PrestoS3FileSystem.java:902)
> ~[?:?]
> at
> com.facebook.presto.hive.s3.PrestoS3FileSystem$PrestoS3InputStream.openStream(PrestoS3FileSystem.java:887)
> ~[?:?]
> at
> com.facebook.presto.hive.s3.PrestoS3FileSystem$PrestoS3InputStream.seekStream(PrestoS3FileSystem.java:880)
> ~[?:?]
> at
> com.facebook.presto.hive.s3.PrestoS3FileSystem$PrestoS3InputStream.lambda$read$0(PrestoS3FileSystem.java:819)
> ~[?:?]
> at com.facebook.presto.hive.RetryDriver.run(RetryDriver.java:138) ~[?:?]
> at
> com.facebook.presto.hive.s3.PrestoS3FileSystem$PrestoS3InputStream.read(PrestoS3FileSystem.java:818)
> ~[?:?]
> at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
> ~[?:1.8.0_282]
> at XXX.recover(KubernetesHaCheckpointStore.java:69)
> ~[vvp-flink-ha-kubernetes-flink112-1.1.0.jar:?]
> at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreLatestCheckpointedStateInternal(CheckpointCoordinator.java:1511)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreLatestCheckpointedStateToAll(CheckpointCoordinator.java:1451)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> org.apache.flink.runtime.scheduler.SchedulerBase.restoreState(SchedulerBase.java:421)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> org.apache.flink.runtime.scheduler.DefaultScheduler.lambda$restartTasks$2(DefaultScheduler.java:314)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> java.util.concurrent.CompletableFuture.uniRun(CompletableFuture.java:719)
> ~[?:1.8.0_282]
> at
> java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:701)
> ~[?:1.8.0_282]
> at
> java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:456)
> ~[?:1.8.0_282]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:440)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:208)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:77)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:158)
> ~[flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at scala.PartialFunction.applyOrElse(PartialFunction.scala:123)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.actor.Actor.aroundReceive(Actor.scala:517)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.actor.Actor.aroundReceive$(Actor.scala:515)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.actor.ActorCell.invoke(ActorCell.scala:561)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.dispatch.Mailbox.run(Mailbox.scala:225)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> at
> akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> [flink-dist_2.12-1.12.2-stream1.jar:1.12.2-stream1]
> Caused by: org.apache.http.conn.HttpHostConnectException: Connect to
> minio.minio.svc:9000 [minio.minio.svc/10.115.246.236] failed: Connection
> refused (Connection refused)
> at
> org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:156)
> ~[?:?]
> at
> org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:374)
> ~[?:?]
> at sun.reflect.GeneratedMethodAccessor116.invoke(Unknown Source) ~[?:?]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:1.8.0_282]
> at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_282]
> at
> com.amazonaws.http.conn.ClientConnectionManagerFactory$Handler.invoke(ClientConnectionManagerFactory.java:76)
> ~[?:?]
> at com.amazonaws.http.conn.$Proxy18.connect(Unknown Source) ~[?:?]
> at
> org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393)
> ~[?:?]
> at
> org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
> ~[?:?]
> at
> org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
> ~[?:?]
> at
> org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
> ~[?:?]
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
> ~[?:?]
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
> ~[?:?]
> at
> com.amazonaws.http.apache.client.impl.SdkHttpClient.execute(SdkHttpClient.java:72)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1330)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1145)
> ~[?:?]
> ... 67 more
> Caused by: java.net.ConnectException: Connection refused (Connection refused)
> at java.net.PlainSocketImpl.socketConnect(Native Method) ~[?:1.8.0_282]
> at
> java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
> ~[?:1.8.0_282]
> at
> java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
> ~[?:1.8.0_282]
> at
> java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
> ~[?:1.8.0_282]
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
> ~[?:1.8.0_282]
> at java.net.Socket.connect(Socket.java:607) ~[?:1.8.0_282]
> at
> org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:75)
> ~[?:?]
> at
> org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142)
> ~[?:?]
> at
> org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:374)
> ~[?:?]
> at sun.reflect.GeneratedMethodAccessor116.invoke(Unknown Source) ~[?:?]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:1.8.0_282]
> at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_282]
> at
> com.amazonaws.http.conn.ClientConnectionManagerFactory$Handler.invoke(ClientConnectionManagerFactory.java:76)
> ~[?:?]
> at com.amazonaws.http.conn.$Proxy18.connect(Unknown Source) ~[?:?]
> at
> org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393)
> ~[?:?]
> at
> org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
> ~[?:?]
> at
> org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
> ~[?:?]
> at
> org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
> ~[?:?]
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
> ~[?:?]
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
> ~[?:?]
> at
> com.amazonaws.http.apache.client.impl.SdkHttpClient.execute(SdkHttpClient.java:72)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1330)
> ~[?:?]
> at
> com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1145)
> ~[?:?]
> ... 67 more
> {code}
> By moving the recovery to the start of the JobManager (which happens
> asynchronously after the JobMaster has gained leadership), Flink will remain
> responsive (reporting a job in INITIALIZING state).
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