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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-12648) DN should provide feedback to NN for throttling commands
Date Thu, 12 Oct 2017 14:40:00 GMT
Daryn Sharp created HDFS-12648:
----------------------------------

             Summary: DN should provide feedback to NN for throttling commands
                 Key: HDFS-12648
                 URL: https://issues.apache.org/jira/browse/HDFS-12648
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: datanode
    Affects Versions: 2.8.0
            Reporter: Daryn Sharp


The NN should avoid sending commands to a DN with a high number of outstanding commands. 
The heartbeat could provide this feedback via perhaps a simple count of the commands or rate
of processing.



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