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Date: Tue, 15 Mar 2016 09:42:39 +0000 (UTC)
From: "Vinayakumar B (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12950356.1458029772000.20198.1458034959268@Atlassian.JIRA>
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Subject: [jira] [Deleted] (HDFS-10092) CLONE - NN should consider current EC
 tasks handling count from DN while assigning new tasks
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     [ https://issues.apache.org/jira/browse/HDFS-10092?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinayakumar B deleted HDFS-10092:
---------------------------------


> 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.


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