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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2024/05/03 13:22:00 UTC
[jira] [Commented] (HDFS-17504) DN process should exit when BPServiceActor exit
[ https://issues.apache.org/jira/browse/HDFS-17504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17843215#comment-17843215 ]
ASF GitHub Bot commented on HDFS-17504:
---------------------------------------
zhuzilong2013 opened a new pull request, #6792:
URL: https://github.com/apache/hadoop/pull/6792
### Description of PR
Refer to HDFS-17504.
BPServiceActor is a very important thread. In a non-HA cluster, the exit of the BPServiceActor thread will cause the DN process to exit. However, in a HA cluster, this is not the case.
I found HDFS-15651 causes BPServiceActor thread to exit and sets the "runningState" from "RunningState.FAILED" to "RunningState.EXITED", it can be confusing during troubleshooting.
I believe that the DN process should exit when the flag of the BPServiceActor is set to RunningState.FAILED because at this point, the DN is unable to recover and establish a heartbeat connection with the ANN on its own.
### How was this patch tested?
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, `NOTICE-binary` files?
> DN process should exit when BPServiceActor exit
> -----------------------------------------------
>
> Key: HDFS-17504
> URL: https://issues.apache.org/jira/browse/HDFS-17504
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Zilong Zhu
> Assignee: Zilong Zhu
> Priority: Major
>
> BPServiceActor is a very important thread. In a non-HA cluster, the exit of the BPServiceActor thread will cause the DN process to exit. However, in a HA cluster, this is not the case.
> I found HDFS-15651 causes BPServiceActor thread to exit and sets the "runningState" from "RunningState.FAILED" to "RunningState.EXITED", it can be confusing during troubleshooting.
> I believe that the DN process should exit when the flag of the BPServiceActor is set to RunningState.FAILED because at this point, the DN is unable to recover and establish a heartbeat connection with the ANN on its own.
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