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https://issues.apache.org/jira/browse/HDFS-6441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoy Antony updated HDFS-6441:
-------------------------------
Attachment: HDFS-6441.patch
Thanks for the review, [~arpitagarwal]. I have taken care of both the review
comments in the updated patch.
# checks if both -include and -exclude options are specified in one invocation
and if so, displays error. Modified _testBalancerCliParseWithWrongParams_ to
test the additional condition.
# Moved _BalancerUtil_ as a static nested class inside Balancer and renamed it
to _Util_ .
> Add ability to exclude/include few datanodes while balancing
> ------------------------------------------------------------
>
> Key: HDFS-6441
> URL: https://issues.apache.org/jira/browse/HDFS-6441
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: balancer
> Affects Versions: 2.4.0
> Reporter: Benoy Antony
> Assignee: Benoy Antony
> Attachments: HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch,
> HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch,
> HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch,
> HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch
>
>
> In some use cases, it is desirable to ignore a few data nodes while
> balancing. The administrator should be able to specify a list of data nodes
> in a file similar to the hosts file and the balancer should ignore these data
> nodes while balancing so that no blocks are added/removed on these nodes.
> Similarly it will be beneficial to specify that only a particular list of
> datanodes should be considered for balancing.
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