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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3478) Test quotas with Long.Max_Value
Date Wed, 13 Jun 2012 05:25:43 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13294160#comment-13294160
] 

Hudson commented on HDFS-3478:
------------------------------

Integrated in Hadoop-Common-trunk-Commit #2355 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2355/])
    HDFS-3478. Test quotas with Long.Max_Value. Contributed by Sujay Rau (Revision 1349634)

     Result = SUCCESS
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1349634
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestQuota.java

                
> Test quotas with Long.Max_Value
> -------------------------------
>
>                 Key: HDFS-3478
>                 URL: https://issues.apache.org/jira/browse/HDFS-3478
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 2.0.0-alpha
>            Reporter: Sujay Rau
>            Assignee: Sujay Rau
>            Priority: Minor
>              Labels: newbie
>             Fix For: 3.0.0
>
>         Attachments: hdfs-3478.txt
>
>
> [root@c1204 hadoop]# sudo -u hdfs hadoop fs -mkdir testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hadoop fs -count -q testQuotaFolder
> none inf none inf 1 0 0 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setQuota 1000 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setSpaceQuota 1000 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hadoop fs -count -q testQuotaFolder
> 1000 999 1000 1000 1 0 0 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setSpaceQuota 9223372036854775807 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setQuota 9223372036854775807 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hadoop fs -count -q testQuotaFolder
> 1000 999 1000 1000 1 0 0 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setQuota 9223372036854775806 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setSpaceQuota 9223372036854775806 testQuotaFolder
> [root@c1204 hadoop]# sudo -u hdfs hadoop fs -count -q testQuotaFolder
> 9223372036854775806 9223372036854775805 9223372036854775806 9223372036854775806 1 0 0
testQuotaFolder
> The documentation at http://hadoop.apache.org/common/docs/r0.20.0/hdfs_quota_admin_guide.html
says that the max quota size is Long.Max_Value which is = 9223372036854775807, but as you
can see above, setting the quota to this value returns no error but doesn't actually change
the quota value. Long.Max_Value - 1 works though.. so the documentation should be changed
to reflect this behavior. Long.Max_Value + 1 returns an actual error (though it isn't the
same as the negative number error):
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setSpaceQuota 9223372036854775808 testQuotaFolder
> setSpaceQuota: For input string: "9223372036854775808"
> Usage: java DFSAdmin [-setSpaceQuota <quota> <dirname>...<dirname>]
> [root@c1204 hadoop]# sudo -u hdfs hdfs dfsadmin -setSpaceQuota -1 testQuotaFolder
> setSpaceQuota: Illegal option -1

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