[
https://issues.apache.org/jira/browse/FLINK-12385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gary Yao closed FLINK-12385.
----------------------------
Resolution: Won't Fix
Feel free to re-open if you object.
> RestClusterClient can hang indefinitely during job submission
> -------------------------------------------------------------
>
> Key: FLINK-12385
> URL: https://issues.apache.org/jira/browse/FLINK-12385
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination, Runtime / REST
> Affects Versions: 1.8.0
> Reporter: Matt Dailey
> Priority: Minor
>
> We have had situations where clients would hang indefinitely during job
> submission, even when job submission would succeed. We have not yet
> characterized what happened on the server to cause this, but we thought that
> the client should have a timeout for these requests.
> This was observed in Flink 1.5.5, but the code seems to still have this
> problem in 1.8.0. One option is to include a timeout in calls to
> {{CompletableFuture.get()}}:
> * [RestClusterClient in
> 1.5.5|https://github.com/apache/flink/blob/release-1.5.5/flink-clients/src/main/java/org/apache/flink/client/program/rest/RestClusterClient.java#L246]
> * [RestClusterClient in
> 1.8.0|https://github.com/apache/flink/blob/release-1.8.0/flink-clients/src/main/java/org/apache/flink/client/program/rest/RestClusterClient.java#L247]
> Thread dump from client running Flink 1.5.5, running in Java 8:
> {noformat}
> http-nio-0.0.0.0-8443-exec-6" #34 daemon prio=5 os_prio=0
> tid=0x000055b421fd2000 nid=0x29 waiting on condition [0x00007f932e176000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00000000b331d7c0> (a
> java.util.concurrent.CompletableFuture$Signaller)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
> at
> java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1693)
> at
> java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3323)
> at
> java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1729)
> at
> java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
> at
> org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:246)
> at
> org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:464)
> at
> org.apache.flink.client.program.DetachedEnvironment.finalizeExecute(DetachedEnvironment.java:77)
> at
> org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:410)
> {noformat}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
