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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3732) Block scanner should read block information during initialization.
Date Mon, 14 Jul 2008 18:12:31 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Raghu Angadi updated HADOOP-3732:
---------------------------------

    Fix Version/s:     (was: 0.18.0)
                   0.19.0
           Status: Patch Available  (was: Open)

> Block scanner should read block information during initialization.
> ------------------------------------------------------------------
>
>                 Key: HADOOP-3732
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3732
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.17.0
>            Reporter: Konstantin Shvachko
>            Assignee: Raghu Angadi
>            Priority: Blocker
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-3732.patch, HADOOP-3732.patch
>
>
> We see a lot of warning messages on each data-node during startup and upgrading from
0.17 to 0.18 saying:
> {code}
> 2008-07-08 22:22:15,711 WARN org.apache.hadoop.dfs.DataNode: Block /grid/3/hadoop/var/hdfs/data/current/blk_3359714082706415785
does not have a metafile!
> {code}
> The message received twice for each block, because the block information is first read
buy the data-node itself and then by the block scanner.

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