[ 
https://issues.apache.org/jira/browse/HDFS-15879?focusedWorklogId=570728&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-570728
 ]

ASF GitHub Bot logged work on HDFS-15879:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 23/Mar/21 19:29
            Start Date: 23/Mar/21 19:29
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2748:
URL: https://github.com/apache/hadoop/pull/2748#issuecomment-805173707


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 51s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  1s |  |  No case conflicting files 
found.  |
   | +0 :ok: |  codespell  |   0m  0s |  |  codespell was not available.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 1 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  35m  1s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |   1m 21s |  |  trunk passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  compile  |   1m 12s |  |  trunk passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  checkstyle  |   1m  4s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   1m 20s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   0m 52s |  |  trunk passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   1m 25s |  |  trunk passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  spotbugs  |   3m 15s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  18m 36s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   1m 11s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |   1m 17s |  |  the patch passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javac  |   1m 17s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |   1m  7s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  javac  |   1m  7s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | -0 :warning: |  checkstyle  |   0m 57s | 
[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2748/8/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
 |  hadoop-hdfs-project/hadoop-hdfs: The patch generated 9 new + 535 unchanged 
- 0 fixed = 544 total (was 535)  |
   | +1 :green_heart: |  mvnsite  |   1m 12s |  |  the patch passed  |
   | +1 :green_heart: |  xml  |   0m  1s |  |  The patch has no ill-formed XML 
file.  |
   | +1 :green_heart: |  javadoc  |   0m 46s |  |  the patch passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   1m 19s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  spotbugs  |   3m 17s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  18m 39s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | -1 :x: |  unit  | 342m  8s | 
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2748/8/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
 |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   0m 35s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 434m 53s |  |  |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | hadoop.hdfs.server.datanode.TestBlockScanner |
   |   | hadoop.hdfs.TestRollingUpgrade |
   |   | hadoop.hdfs.TestViewDistributedFileSystemWithMountLinks |
   |   | hadoop.hdfs.server.namenode.ha.TestBootstrapStandby |
   |   | hadoop.hdfs.TestPersistBlocks |
   |   | hadoop.hdfs.server.datanode.TestBlockRecovery |
   |   | hadoop.hdfs.server.namenode.ha.TestEditLogTailer |
   |   | hadoop.hdfs.TestDFSShell |
   |   | hadoop.hdfs.server.namenode.snapshot.TestNestedSnapshots |
   |   | hadoop.hdfs.server.datanode.fsdataset.impl.TestFsVolumeList |
   |   | 
hadoop.hdfs.server.namenode.TestDecommissioningStatusWithBackoffMonitor |
   |   | hadoop.hdfs.server.namenode.TestDecommissioningStatus |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2748/8/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2748 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell xml |
   | uname | Linux dee14ef2a8cd 4.15.0-136-generic #140-Ubuntu SMP Thu Jan 28 
05:20:47 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 5e95a30f24c9d62e777f19840b04fb475cb08a7b |
   | Default Java | Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2748/8/testReport/ |
   | Max. process+thread count | 1986 (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-2748/8/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | 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: 570728)
    Time Spent: 2h 20m  (was: 2h 10m)

> Exclude slow nodes when choose targets for blocks
> -------------------------------------------------
>
>                 Key: HDFS-15879
>                 URL: https://issues.apache.org/jira/browse/HDFS-15879
>             Project: Hadoop HDFS
>          Issue Type: Wish
>            Reporter: tomscut
>            Assignee: tomscut
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> Previously, we have monitored the slow nodes, related to 
> [HDFS-11194|https://issues.apache.org/jira/browse/HDFS-11194].
> We can use a thread to periodically collect these slow nodes into a set. Then 
> use the set to filter out slow nodes when choose targets for blocks.
> This feature can be configured to be turned on when needed.



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