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https://issues.apache.org/jira/browse/HDFS-17333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17805308#comment-17805308
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ASF GitHub Bot commented on HDFS-17333:
---------------------------------------
hadoop-yetus commented on PR #6430:
URL: https://github.com/apache/hadoop/pull/6430#issuecomment-1885834973
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
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| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
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| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
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|||| _ trunk Compile Tests _ |
| +0 :ok: | mvndep | 14m 23s | | Maven dependency ordering for branch |
| +1 :green_heart: | mvninstall | 21m 18s | | trunk passed |
| +1 :green_heart: | compile | 9m 16s | | trunk passed with JDK
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| +1 :green_heart: | compile | 8m 37s | | trunk passed with JDK
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| +1 :green_heart: | mvnsite | 2m 38s | | trunk passed |
| +1 :green_heart: | javadoc | 2m 1s | | trunk passed with JDK
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| +1 :green_heart: | spotbugs | 4m 43s | | trunk passed |
| +1 :green_heart: | shadedclient | 20m 45s | | branch has no errors
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|||| _ Patch Compile Tests _ |
| +0 :ok: | mvndep | 0m 21s | | Maven dependency ordering for patch |
| +1 :green_heart: | mvninstall | 1m 35s | | the patch passed |
| +1 :green_heart: | compile | 8m 1s | | the patch passed with JDK
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| +1 :green_heart: | javac | 8m 1s | | the patch passed |
| +1 :green_heart: | compile | 7m 29s | | the patch passed with JDK
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| +1 :green_heart: | javac | 7m 29s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
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| +1 :green_heart: | checkstyle | 1m 57s | | the patch passed |
| +1 :green_heart: | mvnsite | 2m 17s | | the patch passed |
| +1 :green_heart: | javadoc | 1m 46s | | the patch passed with JDK
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javadoc | 2m 14s | | the patch passed with JDK
Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
| +1 :green_heart: | spotbugs | 4m 56s | | the patch passed |
| +1 :green_heart: | shadedclient | 20m 47s | | patch has no errors
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|||| _ Other Tests _ |
| +1 :green_heart: | unit | 16m 34s | | hadoop-common in the patch
passed. |
| +1 :green_heart: | unit | 2m 0s | | hadoop-hdfs-client in the patch
passed. |
| +1 :green_heart: | unit | 184m 36s | | hadoop-hdfs in the patch
passed. |
| +1 :green_heart: | asflicense | 0m 38s | | The patch does not
generate ASF License warnings. |
| | | 345m 43s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.43 ServerAPI=1.43 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6430/3/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/6430 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets xmllint |
| uname | Linux d05670ad082e 5.15.0-88-generic #98-Ubuntu SMP Mon Oct 2
15:18:56 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 0bd0e84010f6489ccc17351d793014ce0b444c1b |
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| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6430/3/testReport/ |
| Max. process+thread count | 4653 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs U: . |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6430/3/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.
> DFSClient support lazy resolve host->ip.
> ----------------------------------------
>
> Key: HDFS-17333
> URL: https://issues.apache.org/jira/browse/HDFS-17333
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Jian Zhang
> Assignee: Jian Zhang
> Priority: Major
> Labels: pull-request-available
> Attachments: HDFS-17333.001.patch
>
>
> Currently, when dfsclient is started, it will resolve all hosts of all
> namservices:
> at DFSUtilClient#getAddresses(conf, null, addressKey)
> at AbstractNNFailoverProxyProvider#getProxyAddresses(URI uri,
> String addressKey)
> If the current environment where the dfsClient is located causes resolution
> of host->ip to be very slow, the existing logic will undoubtedly take a long
> time when there are too many nameservices.
> Now, each dfsclient only needs the IPs of all namenodes of a certain
> nameservice at most. A better situation is that if the namenode selected by
> dfsclient for the first time can provide the required services normally, then
> the client only needs to know the IP of this namenode. Therefore, it is not
> necessary to resolve all namenodes of all nameservices in the configuration
> file, when dfsclient is started.
> This patch supports lazy resolution of host->ip, which will only be resolved
> when the host needs to be accessed.
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