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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5384) DataNodeCluster should not create blocks with generationStamp == 1
Date Wed, 04 Mar 2009 21:59:56 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hairong Kuang updated HADOOP-5384:
----------------------------------

         Priority: Blocker  (was: Major)
    Fix Version/s: 0.20.0
                   0.19.2

Marking this as a blocker so that simulated datanode could work with NameNode.

> DataNodeCluster should not create blocks with generationStamp == 1
> ------------------------------------------------------------------
>
>                 Key: HADOOP-5384
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5384
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: test
>            Reporter: Tsz Wo (Nicholas), SZE
>            Priority: Blocker
>             Fix For: 0.19.2, 0.20.0
>
>         Attachments: 5384_20090303.patch
>
>
> In DataNodeCluster.main(..), injected blocks are created with generationStamp == 1, which
is a reserved value but not a valid generation stamp.  As a consequence, NameNode may die
when those blocks are reported.

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