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https://issues.apache.org/jira/browse/HDFS-15027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16987459#comment-16987459
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Xudong Cao edited comment on HDFS-15027 at 12/4/19 2:40 AM:
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cc [~weichiu] Sorry, patch uploaded again, this is just a minor log
improvement, I think there's no need for unit test.
was (Author: xudongcao):
cc [~weichiu] Sorry, patch uploaded again, this is just a minor log improve, I
think there's no need for unit test.
> Correct target DN's log while balancing.
> ----------------------------------------
>
> Key: HDFS-15027
> URL: https://issues.apache.org/jira/browse/HDFS-15027
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer & mover
> Affects Versions: 3.2.1
> Reporter: Xudong Cao
> Assignee: Xudong Cao
> Priority: Minor
> Attachments: HDFS-15027.000.patch
>
>
> During HDFS balancing, after the target DN copied a block from the proxy DN,
> it prints a log following the pattern below:
> *Moved BLOCK from BALANCER*
> This is somehow misleading, maybe we can improve the pattern like:
> *Copied BLOCK from PROXY DN, initiated by* *BALANCER*
>
> An example log of target DN during balancing:
> 1. Wrong log printing before jira:
> {code:java}
> 2019-12-04 09:33:19,718 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
> Moved BP-1426342230-192.168.202.11-1575277482603:blk_1073741889_1065 from
> /192.168.202.13:56322, delHint=54a14a41-0d7c-4487-b4f0-ce2848f86b48{code}
> 2. Correct log printing after jira:
> {code:java}
> 2019-12-04 10:32:06,707 INFO org.apache.hadoop.hdfs.server.datanode.DataNode:
> Copied BP-428834875-192.168.202.11-1575425340126:blk_1073741918_1094 from
> /192.168.202.11:9866, initiated by /192.168.202.13:44502,
> delHint=84a0626a-5fa4-4c66-a776-074f537d4235{code}
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