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David Morávek commented on FLINK-22483: --------------------------------------- As for [~sewen]'s comment, I'll create a separate issue for lowering the `{{CompletedCheckpointStore}}` memory pressure, so we can figure this one faster. > 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 > Priority: Critical > 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). -- This message was sent by Atlassian Jira (v8.3.4#803005)