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From "Lin Yiqun (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-9468) DfsAdmin command set dataXceiver count for datanode
Date Wed, 25 Nov 2015 08:45:10 GMT
Lin Yiqun created HDFS-9468:

             Summary: DfsAdmin command set dataXceiver count for datanode
                 Key: HDFS-9468
                 URL: https://issues.apache.org/jira/browse/HDFS-9468
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
    Affects Versions: 2.7.1
            Reporter: Lin Yiqun
            Assignee: Lin Yiqun

Now in every datanode,concurrent xceivers count value are all set by {{DFSConfigKeys.DFS_DATANODE_MAX_RECEIVER_THREADS_DEFAULT}}.And
if you want to set this value for different values because some node has lower memory or cores.Then
you must to change the config and restart datanode.So may be we can dynamic set dataxceiver
count by a dfsadmin command and we can set value for one or many specific nodes.

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