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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11378) Verify multiple DataNodes can be decommissioned/maintenance at the same time
Date Sat, 28 Jan 2017 00:54:24 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15843733#comment-15843733
] 

Hudson commented on HDFS-11378:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11187 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/11187/])
HDFS-11378. Verify multiple DataNodes can be decommissioned/maintenance (mingma: rev 312b36d113d83640b92c62fdd91ede74bd04c00f)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestMaintenanceState.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/AdminStatesBaseTest.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommission.java


> Verify multiple DataNodes can be decommissioned/maintenance at the same time
> ----------------------------------------------------------------------------
>
>                 Key: HDFS-11378
>                 URL: https://issues.apache.org/jira/browse/HDFS-11378
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Manoj Govindassamy
>            Assignee: Manoj Govindassamy
>             Fix For: 2.9.0, 3.0.0-alpha3
>
>         Attachments: HDFS-11378.01.patch
>
>
> DecommissionManager is capable of transitioning multiple DataNodes to Decommission/Maintenance
states. Current tests under TestDecommission and TestMaintenanceState only request for one
DataNode for Decommission/Maintenance. Better if we can simulate real world cases whereby
multiple DataNodes can be taken out of service and verify the resulting block replication
factor for the files.



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