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https://issues.apache.org/jira/browse/HDFS-17030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17732365#comment-17732365
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ASF GitHub Bot commented on HDFS-17030:
---------------------------------------
hadoop-yetus commented on PR #5700:
URL: https://github.com/apache/hadoop/pull/5700#issuecomment-1590488797
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
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|||| _ trunk Compile Tests _ |
| +0 :ok: | mvndep | 18m 17s | | Maven dependency ordering for branch |
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| +1 :green_heart: | compile | 5m 44s | | trunk passed with JDK
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| +1 :green_heart: | mvnsite | 2m 34s | | trunk passed |
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| +1 :green_heart: | spotbugs | 5m 59s | | trunk passed |
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|||| _ Patch Compile Tests _ |
| +0 :ok: | mvndep | 0m 50s | | Maven dependency ordering for patch |
| +1 :green_heart: | mvninstall | 2m 2s | | the patch passed |
| +1 :green_heart: | compile | 5m 20s | | the patch passed with JDK
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issues. |
| -0 :warning: | checkstyle | 1m 14s |
[/results-checkstyle-hadoop-hdfs-project.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5700/22/artifact/out/results-checkstyle-hadoop-hdfs-project.txt)
| hadoop-hdfs-project: The patch generated 2 new + 1 unchanged - 0 fixed = 3
total (was 1) |
| +1 :green_heart: | mvnsite | 2m 14s | | the patch passed |
| +1 :green_heart: | javadoc | 1m 37s | | the patch passed with JDK
Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1 |
| +1 :green_heart: | javadoc | 2m 7s | | the patch passed with JDK
Private Build-1.8.0_362-8u372-ga~us1-0ubuntu1~20.04-b09 |
| +1 :green_heart: | spotbugs | 5m 49s | | the patch passed |
| +1 :green_heart: | shadedclient | 24m 9s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 2m 28s | | hadoop-hdfs-client in the patch
passed. |
| +1 :green_heart: | unit | 212m 7s | | hadoop-hdfs in the patch
passed. |
| +1 :green_heart: | asflicense | 1m 0s | | The patch does not
generate ASF License warnings. |
| | | 357m 13s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.43 ServerAPI=1.43 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5700/22/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/5700 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
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| uname | Linux 72b5811d2261 4.15.0-206-generic #217-Ubuntu SMP Fri Feb 3
19:10:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
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| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5700/22/testReport/ |
| Max. process+thread count | 2921 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-client
hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5700/22/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.
> Limit wait time for getHAServiceState in ObserverReaderProxy
> ------------------------------------------------------------
>
> Key: HDFS-17030
> URL: https://issues.apache.org/jira/browse/HDFS-17030
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Affects Versions: 3.4.0
> Reporter: Xing Lin
> Assignee: Xing Lin
> Priority: Minor
> Labels: pull-request-available
>
> When namenode HA is enabled and a standby NN is not responsible, we have
> observed it would take a long time to serve a request, even though we have a
> healthy observer or active NN.
> Basically, when a standby is down, the RPC client would (re)try to create
> socket connection to that standby for _ipc.client.connect.timeout_ _*
> ipc.client.connect.max.retries.on.timeouts_ before giving up. When we take a
> heap dump at a standby, the NN still accepts the socket connection but it
> won't send responses to these RPC requests and we would timeout after
> _ipc.client.rpc-timeout.ms._ This adds a significantly latency. For clusters
> at Linkedin, we set _ipc.client.rpc-timeout.ms_ to 120 seconds and thus a
> request takes more than 2 mins to complete when we take a heap dump at a
> standby. This has been causing user job failures.
> We could set _ipc.client.rpc-timeout.ms to_ a smaller value when sending
> getHAServiceState requests in ObserverReaderProxy (for user rpc requests, we
> still use the original value from the config). However, that would double the
> socket connection between clients and the NN (which is a deal-breaker).
> The proposal is to add a timeout on getHAServiceState() calls in
> ObserverReaderProxy and we will only wait for the timeout for an NN to
> respond its HA state. Once we pass that timeout, we will move on to probe the
> next NN.
>
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