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https://issues.apache.org/jira/browse/HDFS-10297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15258859#comment-15258859
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Hudson commented on HDFS-10297:
-------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #9672 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9672/])
HDFS-10297. Increase default balance bandwidth and concurrent moves. (wang: rev
6be22ddbf1b6f3c19ec70c63ddb8f5519d18dd72)
* hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
> Increase default balance bandwidth and concurrent moves
> -------------------------------------------------------
>
> Key: HDFS-10297
> URL: https://issues.apache.org/jira/browse/HDFS-10297
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: balancer & mover
> Affects Versions: 2.6.0
> Reporter: John Zhuge
> Assignee: John Zhuge
> Priority: Minor
> Labels: supportability
> Fix For: 2.9.0
>
> Attachments: HDFS-10297.001.patch, HDFS-10297.002.patch,
> HDFS-10297.003.patch
>
>
> Adjust the default values to better support the current level of customer
> host and network configurations.
> Increase the default for property {{dfs.datanode.balance.bandwidthPerSec}}
> from 1 to 10 MB. Apply to DN. 10 MB/s is about 10% of the GbE network.
> Increase the default for property
> {{dfs.datanode.balance.max.concurrent.moves}} from 5 to 50. Apply to DN and
> Balancer. The default number of DN receiver threads is 4096. The default
> number of balancer mover threads is 1000.
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