Lin Yiqun created HDFS-9468:
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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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