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https://issues.apache.org/jira/browse/HDFS-11401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15862437#comment-15862437
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Weiwei Yang commented on HDFS-11401:
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Thanks [~surendrasingh] for the comments, v2 patch uploaded. Please help to
review. Now dispatcher will just print warning message like
{quote}
WARN balancer.Dispatcher (Dispatcher.java:dispatch(380)) - Skip moving pinned
block blk_1073741826_1002
{quote}
I hope that looks better now. Thank you.
> Reduce verbosity of logs with favored nodes and block pinning enabled
> ---------------------------------------------------------------------
>
> Key: HDFS-11401
> URL: https://issues.apache.org/jira/browse/HDFS-11401
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: balancer & mover, datanode
> Affects Versions: 2.8.0
> Reporter: Thiruvel Thirumoolan
> Assignee: Weiwei Yang
> Priority: Minor
> Attachments: HDFS-11401.01.patch, HDFS-11401.02.patch,
> testBalancerWithPinnedBlocks.output.txt
>
>
> I am working on enabling favored nodes for HBase (HBASE-15531). Was trying
> out what happens if favored nodes is used and HDFS balancer is enabled. Ran
> the unit test TestBalancer#testBalancerWithPinnedBlocks from branch-2.8.
> There were too many exceptions and error messages with this (output attached)
> since pinned blocks can't be moved.
> Is there any way to reduce this logging since block pinning is intentional?
> On a real cluster, this could be too much. HDFS-6133 enabled block pinning.
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