[ 
https://issues.apache.org/jira/browse/HDFS-16057?focusedWorklogId=609699&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-609699
 ]

ASF GitHub Bot logged work on HDFS-16057:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 10/Jun/21 13:29
            Start Date: 10/Jun/21 13:29
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #3084:
URL: https://github.com/apache/hadoop/pull/3084#issuecomment-858624450


   :confetti_ball: **+1 overall**
   
   
   
   
   
   
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   |||| _ trunk Compile Tests _ |
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Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04  |
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   |||| _ Patch Compile Tests _ |
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when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  | 241m 25s |  |  hadoop-hdfs in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 43s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 325m 20s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3084/5/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/3084 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
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   | uname | Linux c43175376ddc 4.15.0-136-generic #140-Ubuntu SMP Thu Jan 28 
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   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3084/5/testReport/ |
   | Max. process+thread count | 3236 (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-3084/5/console |
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   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 609699)
    Time Spent: 1h 20m  (was: 1h 10m)

> Make sure the order for location in ENTERING_MAINTENANCE state
> --------------------------------------------------------------
>
>                 Key: HDFS-16057
>                 URL: https://issues.apache.org/jira/browse/HDFS-16057
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: tomscut
>            Assignee: tomscut
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> We use comparator to sort locations in getBlockLocations(), and the expected 
> result is: live -> stale -> entering_maintenance -> decommissioned.
> But the networktopology. SortByDistance() will disrupt the order. We should 
> also filtered out node in sate  AdminStates.ENTERING_MAINTENANCE before 
> networktopology. SortByDistance().
>  
> org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager#sortLocatedBlock()
> {code:java}
> DatanodeInfoWithStorage[] di = lb.getLocations();
> // Move decommissioned/stale datanodes to the bottom
> Arrays.sort(di, comparator);
> // Sort nodes by network distance only for located blocks
> int lastActiveIndex = di.length - 1;
> while (lastActiveIndex > 0 && isInactive(di[lastActiveIndex])) {
>   --lastActiveIndex;
> }
> int activeLen = lastActiveIndex + 1;
> if(nonDatanodeReader) {
>   networktopology.sortByDistanceUsingNetworkLocation(client,
>       lb.getLocations(), activeLen, createSecondaryNodeSorter());
> } else {
>   networktopology.sortByDistance(client, lb.getLocations(), activeLen,
>       createSecondaryNodeSorter());
> }
> {code}
>  



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