[jira] [Created] (HDFS-10092) CLONE - NN should consider current EC tasks handling count from DN while assigning new tasks

["dragon (JIRA)" <ji...@apache.org>]

dragon created HDFS-10092:
-----------------------------

             Summary: CLONE - NN should consider current EC tasks handling count from DN while assigning new tasks
                 Key: HDFS-10092
                 URL: https://issues.apache.org/jira/browse/HDFS-10092
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: datanode, namenode
            Reporter: dragon
            Assignee: Uma Maheswara Rao G
             Fix For: HDFS-7285


Currently NN will pick the (maxStreams-XmitsCount) number of ECtasks at a time for assigning to the respective DN.
{code}
//get datanode commands
      final int maxTransfer = blockManager.getMaxReplicationStreams()
          - xmitsInProgress;
{code}

But right now we increment xmitsInProgress count at DN only for regular replication tasks but not for ECWorker tasks.

So, either we should treat this logic separately for EC or we should consider EC current task handling count form DN.

This jira for discussing more for this case.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)