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https://issues.apache.org/jira/browse/HDFS-11808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka updated HDFS-11808:
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Attachment: HDFS-11808-branch-2.7-02.patch
I found a root cause. After HDFS-8824, the following setting is required to
rebalance small blocks.
{code}
conf.setLong(DFSConfigKeys.DFS_BALANCER_GETBLOCKS_MIN_BLOCK_SIZE_KEY, 1L);
{code}
Attaching a patch to add the setting.
> Backport HDFS-8549 to branch-2.7: Abort the balancer if an upgrade is in
> progress
> ---------------------------------------------------------------------------------
>
> Key: HDFS-11808
> URL: https://issues.apache.org/jira/browse/HDFS-11808
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Vinitha Reddy Gankidi
> Assignee: Akira Ajisaka
> Attachments: HDFS-11808-branch-2.7-01.patch,
> HDFS-11808-branch-2.7-02.patch
>
>
> As per discussussion in [mailling
> list|http://mail-archives.apache.org/mod_mbox/hadoop-mapreduce-dev/201705.mbox/browser]
> backport HDFS-8549 to branch-2.7
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