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Date: Mon, 18 May 2015 09:31:01 +0000 (UTC)
From: "Uma Maheswara Rao G (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.12827562.1430895413000.142328.1431941461314@Atlassian.JIRA>
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 <JIRA.12827562.1430895413303@arcas>
Subject: [jira] [Resolved] (HDFS-8332) DFS client API calls should check
 filesystem closed
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     [ https://issues.apache.org/jira/browse/HDFS-8332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uma Maheswara Rao G resolved HDFS-8332.
---------------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 2.8.0)
                   3.0.0
     Release Note: Users may need special attention for this change while upgrading to this version. Previously user could call some APIs(example: setReplication) even after closing the fs object. With this change DFS client will not allow any operations to call on closed fs objects.  As calling fs operations on closed fs is not right thing to do, users need to correct the usage if any.

> DFS client 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
>             Fix For: 3.0.0
>
>         Attachments: HDFS-8332-000.patch, HDFS-8332-001.patch, HDFS-8332-002-Branch-2.patch, HDFS-8332-002.patch, HDFS-8332.001.branch-2.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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