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From "Rakesh R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8332) DistributedFileSystem listCacheDirectives() and listCachePools() API calls should check filesystem closed
Date Wed, 06 May 2015 08:20:01 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14530134#comment-14530134
] 

Rakesh R commented on HDFS-8332:
--------------------------------

Attached patch where it checks the file system is open to perform the {{cache}} operations.

> DistributedFileSystem listCacheDirectives() and listCachePools() API calls should check
filesystem closed
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8332
>                 URL: https://issues.apache.org/jira/browse/HDFS-8332
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>         Attachments: HDFS-8332-000.patch
>
>
> I could see {{listCacheDirectives()}} and {{listCachePools()}} APIs can be called even
after the filesystem close. Instead these calls should do {{checkOpen}} and throws:
> {code}
> java.io.IOException: Filesystem closed
> 	at org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:464)
> {code}



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