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https://issues.apache.org/jira/browse/HDFS-16476?focusedWorklogId=736418&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-736418
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ASF GitHub Bot logged work on HDFS-16476:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Mar/22 23:53
            Start Date: 03/Mar/22 23:53
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #4010:
URL: https://github.com/apache/hadoop/pull/4010#issuecomment-1058677665


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
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   | -1 :x: |  cc  |  21m 43s | 
[/results-compile-cc-root-jdkUbuntu-11.0.13+8-Ubuntu-0ubuntu1.20.04.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4010/2/artifact/out/results-compile-cc-root-jdkUbuntu-11.0.13+8-Ubuntu-0ubuntu1.20.04.txt)
 |  root-jdkUbuntu-11.0.13+8-Ubuntu-0ubuntu1.20.04 with JDK 
Ubuntu-11.0.13+8-Ubuntu-0ubuntu1.20.04 generated 33 new + 290 unchanged - 33 
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   | -1 :x: |  cc  |  19m 41s | 
[/results-compile-cc-root-jdkPrivateBuild-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4010/2/artifact/out/results-compile-cc-root-jdkPrivateBuild-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.txt)
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[/results-checkstyle-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4010/2/artifact/out/results-checkstyle-root.txt)
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when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
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   |  |   | 483m 36s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4010/2/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/4010 |
   | Optional Tests | dupname asflicense mvnsite codespell markdownlint compile 
javac javadoc mvninstall unit shadedclient spotbugs checkstyle cc buflint 
bufcompat |
   | uname | Linux ad00d8645235 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
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   | Build tool | maven |
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   | git revision | trunk / da89829bc7dbdf76d0cf7f672ed2652b93e7c320 |
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/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.13+8-Ubuntu-0ubuntu1.20.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4010/2/testReport/ |
   | Max. process+thread count | 3095 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs hadoop-hdfs-project/hadoop-hdfs-rbf U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4010/2/console |
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   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 736418)
    Time Spent: 1h 10m  (was: 1h)

> Increase the number of metrics used to record PendingRecoveryBlocks
> -------------------------------------------------------------------
>
>                 Key: HDFS-16476
>                 URL: https://issues.apache.org/jira/browse/HDFS-16476
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: metrics, namenode
>    Affects Versions: 2.9.2, 3.4.0
>            Reporter: JiangHua Zhu
>            Assignee: JiangHua Zhu
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> The complete process of block recovery is as follows:
> 1. NameNode collects which blocks need to be recovered.
> 2. The NameNode issues instructions to some DataNodes for execution.
> 3. DataNode tells NameNode after execution is complete.
> Now there is no way to know how many blocks are being recovered. The number 
> of metrics used to record PendingRecoveryBlocks should be increased, which is 
> good for increasing the robustness of the cluster.
> Here are some logs of DataNode execution:
> 2022-02-10 23:51:04,386 [12208592621] - INFO  [IPC Server handler 38 on 
> 8025:FsDatasetImpl@2687] - initReplicaRecovery: changing replica state for 
> blk_xxxx from RBW to RUR
> 2022-02-10 23:51:04,395 [12208592630] - INFO  [IPC Server handler 47 on 
> 8025:FsDatasetImpl@2708] - updateReplica: BP-xxxx:blk_xxxx, 
> recoveryId=18386356475, length=129869866, replica=ReplicaUnderRecovery, 
> blk_xxxx, RUR
> Here are some logs that NameNdoe receives after completion:
> 2022-02-22 10:43:58,780 [8193058814] - INFO  [IPC Server handler 15 on 
> 8021:FSNamesystem@3647] - commitBlockSynchronization(oldBlock=BP-xxxx, 
> newgenerationstamp=18551926574, newlength=16929, newtargets=[xxxx1:1004, 
> xxxx2:1004, xxxx3:1004]) successful



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