hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9045) In nodegroup-aware case, make sure nodes are avoided to place replica if some replica are already under the same nodegroup
Date Thu, 15 Nov 2012 16:16:12 GMT
Junping Du created HADOOP-9045:
----------------------------------

             Summary: In nodegroup-aware case, make sure nodes are avoided to place replica
if some replica are already under the same nodegroup
                 Key: HADOOP-9045
                 URL: https://issues.apache.org/jira/browse/HADOOP-9045
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs
    Affects Versions: 2.0.2-alpha
            Reporter: Junping Du


In previous implementation for HADOOP-8468, 3rd replica is avoid to place on the same nodegroup
of 2nd replica. But it didn't provide check on nodegroup of 1st replica, so if 2nd replica's
rack is not efficient to place replica, then it is possible to place 3rd and 1st replica within
the same node group. We need a change to remove all nodes from available nodes for placing
replica if there already replica on the same nodegroup.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message