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https://issues.apache.org/jira/browse/FLINK-6646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16019372#comment-16019372
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Aljoscha Krettek commented on FLINK-6646:
-----------------------------------------
[~rmetzger] shouldn't this be a blocker?
> YARN session doesn't work with HA
> ---------------------------------
>
> Key: FLINK-6646
> URL: https://issues.apache.org/jira/browse/FLINK-6646
> Project: Flink
> Issue Type: Bug
> Components: YARN
> Affects Versions: 1.2.0, 1.3.0, 1.4.0
> Reporter: Robert Metzger
> Priority: Critical
>
> While testing Flink 1.3.0 RC1, I ran into the following issue on the
> JobManager.
> {code}
> 2017-05-19 14:41:38,030 INFO
> org.apache.flink.runtime.webmonitor.JobManagerRetriever - New leader
> reachable under
> akka.tcp://flink@permanent-qa-cluster-i7c9.c.astral-sorter-757.internal:36528/user/jobmanager:6539dc04-d7fe-4f85-a0b6-09bfb0de8a58.
> 2017-05-19 14:41:38,033 INFO org.apache.flink.yarn.YarnFlinkResourceManager
> - Resource Manager associating with leading JobManager
> Actor[akka://flink/user/jobmanager#1602741108] - leader session
> 6539dc04-d7fe-4f85-a0b6-09bfb0de8a58
> 2017-05-19 14:41:38,033 INFO org.apache.flink.yarn.YarnFlinkResourceManager
> - Requesting new TaskManager container with 1024 megabytes
> memory. Pending requests: 1
> 2017-05-19 14:41:38,781 INFO org.apache.flink.yarn.YarnFlinkResourceManager
> - Received new container:
> container_1494870922226_0061_02_000002 - Remaining pending container
> requests: 0
> 2017-05-19 14:41:38,782 INFO org.apache.flink.yarn.YarnFlinkResourceManager
> - Launching TaskManager in container ContainerInLaunch @
> 1495204898782: Container: [ContainerId:
> container_1494870922226_0061_02_000002, NodeId:
> permanent-qa-cluster-d3iz.c.astral-sorter-757.internal:8041, NodeHttpAddress:
> permanent-qa-cluster-d3iz.c.astral-sorter-757.internal:8042, Resource:
> <memory:1024, vCores:1>, Priority: 0, Token: Token { kind: ContainerToken,
> service: 10.240.0.32:8041 }, ] on host
> permanent-qa-cluster-d3iz.c.astral-sorter-757.internal
> 2017-05-19 14:41:38,788 INFO
> org.apache.hadoop.yarn.client.api.impl.ContainerManagementProtocolProxy -
> Opening proxy : permanent-qa-cluster-d3iz.c.astral-sorter-757.internal:8041
> 2017-05-19 14:41:44,284 INFO org.apache.flink.yarn.YarnFlinkResourceManager
> - Container container_1494870922226_0061_02_000002 failed, with
> a TaskManager in launch or registration. Exit status: -1000
> 2017-05-19 14:41:44,284 INFO org.apache.flink.yarn.YarnFlinkResourceManager
> - Diagnostics for container
> container_1494870922226_0061_02_000002 in state COMPLETE : exitStatus=-1000
> diagnostics=File does not exist:
> hdfs://nameservice1/user/robert/.flink/application_1494870922226_0061/cf9287fe-ac75-4066-a648-91787d946890-taskmanager-conf.yaml
> java.io.FileNotFoundException: File does not exist:
> hdfs://nameservice1/user/robert/.flink/application_1494870922226_0061/cf9287fe-ac75-4066-a648-91787d946890-taskmanager-conf.yaml
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1219)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1211)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1211)
> at org.apache.hadoop.yarn.util.FSDownload.copy(FSDownload.java:251)
> at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:61)
> at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:359)
> at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:357)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698)
> at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:356)
> at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:60)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> The problem is the following:
> - JobManager1 starts from a yarn-session.sh
> - Job1 gets submitted to JobManager1
> - JobManager1 dies
> - YARN starts a new JM: JobManager2
> - in the meantime, errors on the yarn-session.sh appear, shutting down the
> session. This includes deleting the yarn staging directory in HDFS.
> - JobManager2 is unable to start a new Taskmanager because files in staging
> got deleted by the client.
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