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Date: Tue, 14 Dec 2010 21:01:06 -0500 (EST)
From: "Patrick Kling (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Updated: (HDFS-1477) Make NameNode Reconfigurable.
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     [ https://issues.apache.org/jira/browse/HDFS-1477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Kling updated HDFS-1477:
--------------------------------

    Attachment: HDFS-1477.2.patch

Updated patch, added unit test.

ant test-patch output:
{code}
     [exec] +1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler warnings.
     [exec]
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings.
     [exec]
     [exec]     +1 system test framework.  The patch passed system test framework compile.
{code}

ant test failures (all these tests also fail on a clean trunk for me):
{code}
    [junit] Test org.apache.hadoop.hdfs.TestHDFSServerPorts FAILED
    [junit] Test org.apache.hadoop.hdfs.TestHDFSTrash FAILED (timeout)
    [junit] Test org.apache.hadoop.hdfs.server.namenode.TestBackupNode FAILED
    [junit] Test org.apache.hadoop.hdfs.server.namenode.TestStorageRestore FAILED
    [junit] Test org.apache.hadoop.hdfs.TestFileConcurrentReader FAILED (timeout)
{code}

> Make NameNode Reconfigurable.
> -----------------------------
>
>                 Key: HDFS-1477
>                 URL: https://issues.apache.org/jira/browse/HDFS-1477
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 0.23.0
>            Reporter: Patrick Kling
>             Fix For: 0.23.0
>
>         Attachments: HDFS-1477.2.patch, HDFS-1477.patch
>
>
> Modify NameNode to implement the interface Reconfigurable proposed in HADOOP-7001. This would allow us to change certain configuration properties without restarting the name node.

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