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https://issues.apache.org/jira/browse/HDFS-16953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17700947#comment-17700947
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ASF GitHub Bot commented on HDFS-16953:
---------------------------------------
hadoop-yetus commented on PR #5482:
URL: https://github.com/apache/hadoop/pull/5482#issuecomment-1471219931
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 37s | | Docker mode activated. |
|||| _ Prechecks _ |
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| +0 :ok: | detsecrets | 0m 0s | | detect-secrets was not available.
|
| +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 _ |
| +1 :green_heart: | mvninstall | 40m 26s | | trunk passed |
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|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 34s | | the patch passed |
| +1 :green_heart: | compile | 0m 36s | | the patch passed with JDK
Ubuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1 |
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| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 0m 19s | | the patch passed |
| +1 :green_heart: | mvnsite | 0m 36s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 32s | | the patch passed with JDK
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| +1 :green_heart: | javadoc | 0m 50s | | the patch passed with JDK
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| +1 :green_heart: | spotbugs | 1m 21s | | the patch passed |
| +1 :green_heart: | shadedclient | 20m 29s | | patch has no errors
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|||| _ Other Tests _ |
| +1 :green_heart: | unit | 20m 25s | | hadoop-hdfs-rbf in the patch
passed. |
| +1 :green_heart: | asflicense | 0m 36s | | The patch does not
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| | | 116m 53s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.42 ServerAPI=1.42 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5482/2/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/5482 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux 32ba38e4806c 4.15.0-200-generic #211-Ubuntu SMP Thu Nov 24
18:16:04 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 84c22767d06a196ba81c2e9b7112c9a611f9b388 |
| Default Java | Private Build-1.8.0_362-8u362-ga-0ubuntu1~20.04.1-b09 |
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| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5482/2/testReport/ |
| Max. process+thread count | 2723 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U:
hadoop-hdfs-project/hadoop-hdfs-rbf |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5482/2/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.
> RBF: Mount table store APIs should update cache only if state store record is
> successfully updated
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-16953
> URL: https://issues.apache.org/jira/browse/HDFS-16953
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
>
> RBF Mount table state store APIs addMountTableEntry, updateMountTableEntry
> and removeMountTableEntry performs cache refresh for all routers regardless
> of the actual record update result. If the record fails to get updated on
> zookeeper/file based store impl, reloading the cache for all routers would be
> unnecessary.
>
> For instance, simultaneously adding new mount point could lead to failure for
> the second call if first call has not added new entry by the time second call
> retrieves mount table entry from getMountTableEntries before attempting to
> call addMountTableEntry.
> {code:java}
> DEBUG [{cluster}/{ip}:8111] ipc.Client - IPC Client (1826699684) connection
> to nn-0-{ns}.{cluster}/{ip}:8111 from {user}IPC Client (1826699684)
> connection to nn-0-{ns}.{cluster}/{ip}:8111 from {user} sending #1
> org.apache.hadoop.hdfs.protocolPB.RouterAdminProtocol.addMountTableEntry
> DEBUG [{cluster}/{ip}:8111 from {user}] ipc.Client - IPC Client (1826699684)
> connection to nn-0-{ns}.{cluster}/{ip}:8111 from {user} got value #1
> DEBUG [main] ipc.ProtobufRpcEngine2 - Call: addMountTableEntry took 24ms
> DEBUG [{cluster}/{ip}:8111 from {user}] ipc.Client - IPC Client (1826699684)
> connection to nn-0-{ns}.{cluster}/{ip}:8111 from {user}: closed
> DEBUG [{cluster}/{ip}:8111 from {user}] ipc.Client - IPC Client (1826699684)
> connection to nn-0-{ns}.{cluster}/{ip}:8111 from {user}: stopped, remaining
> connections 0
> TRACE [main] ipc.ProtobufRpcEngine2 - 1: Response <-
> nn-0-{ns}.{cluster}/{ip}:8111: addMountTableEntry {status: false}
> Cannot add mount point /data503 {code}
> The failure to write new record:
> {code:java}
> INFO [IPC Server handler 0 on default port 8111]
> impl.StateStoreZooKeeperImpl - Cannot write record
> "/hdfs-federation/MountTable/0SLASH0data503", it already exists {code}
> Since the successful call has already refreshed cache for all routers, second
> call that failed should not have refreshed cache for all routers again as
> everyone already has updated records in cache.
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