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From "Yuanbo Liu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11284) [SPS]: Improve the stability of Storage Policy Satisfier.
Date Fri, 30 Dec 2016 08:44:58 GMT
Yuanbo Liu created HDFS-11284:
---------------------------------

             Summary: [SPS]: Improve the stability of Storage Policy Satisfier.
                 Key: HDFS-11284
                 URL: https://issues.apache.org/jira/browse/HDFS-11284
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Yuanbo Liu
            Assignee: Yuanbo Liu


Recently I've found in some conditions, SPS is not stable:
* SPS runs under safe model.
* There're some overlap nodes in the chosen target nodes.
* The real replication number of block doesn't match the replication factor. For example,
the real replication is 2 while the replication factor is 3.



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