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https://issues.apache.org/jira/browse/HDFS-16774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17606338#comment-17606338
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ASF GitHub Bot commented on HDFS-16774:
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hadoop-yetus commented on PR #4903:
URL: https://github.com/apache/hadoop/pull/4903#issuecomment-1250362446
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
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|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 40m 3s | | trunk passed |
| +1 :green_heart: | compile | 1m 44s | | trunk passed with JDK
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| +1 :green_heart: | compile | 1m 35s | | trunk passed with JDK
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|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 18s | | the patch passed |
| +1 :green_heart: | compile | 1m 32s | | the patch passed with JDK
Ubuntu-11.0.16+8-post-Ubuntu-0ubuntu120.04 |
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issues. |
| -0 :warning: | checkstyle | 0m 56s |
[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4903/1/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs-project/hadoop-hdfs: The patch generated 2 new + 89 unchanged -
2 fixed = 91 total (was 91) |
| +1 :green_heart: | mvnsite | 1m 23s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 58s | | the patch passed with JDK
Ubuntu-11.0.16+8-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javadoc | 1m 37s | | the patch passed with JDK
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| +1 :green_heart: | spotbugs | 3m 43s | | the patch passed |
| +1 :green_heart: | shadedclient | 23m 3s | | patch has no errors
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|||| _ Other Tests _ |
| +1 :green_heart: | unit | 244m 4s | | hadoop-hdfs in the patch
passed. |
| +1 :green_heart: | asflicense | 1m 10s | | The patch does not
generate ASF License warnings. |
| | | 355m 34s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4903/1/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/4903 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
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| uname | Linux b06ccc128ba9 4.15.0-191-generic #202-Ubuntu SMP Thu Aug 4
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| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 22317c8a051173edbfd74edf92de27e521ce7034 |
| Default Java | Private Build-1.8.0_342-8u342-b07-0ubuntu1~20.04-b07 |
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| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4903/1/testReport/ |
| Max. process+thread count | 3390 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4903/1/console |
| versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> Improve async delete replica on datanode
> ----------------------------------------
>
> Key: HDFS-16774
> URL: https://issues.apache.org/jira/browse/HDFS-16774
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
> Labels: pull-request-available
>
> In our online cluster, a large number of ReplicaNotFoundExceptions occur when
> client reads the data.
> After tracing the root cause, it is caused by the asynchronous deletion of
> the replica operation has many stacked pending deletion caused
> ReplicationNotFoundException.
> Current the asynchronous delete of the replica operation process is as
> follows：
> 1.remove the replica from the ReplicaMap
> 2.delete the replica file on the disk [blocked in threadpool]
> 3.notifying namenode through IBR [blocked in threadpool]
> In order to avoid similar problems as much as possible, consider optimizing
> the execution flow：
> The deleting replica from ReplicaMap, deleting replica from disk and
> notifying namenode through IBR are processed in the same asynchronous thread.
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