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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-727) bug setting block size hdfsOpenFile
Date Thu, 29 Oct 2009 02:46:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771264#action_12771264
] 

Eli Collins commented on HDFS-727:
----------------------------------

hdfs_test doesn't catch this, I confirmed hdfsOpenFile as used in the test does set the block
size incorrectly but I suspect the create path isn't going through the BlockManager (which
would fail the write because no DN matches the requested block size). I'll update the test
to catch this bug.

> bug setting block size hdfsOpenFile 
> ------------------------------------
>
>                 Key: HDFS-727
>                 URL: https://issues.apache.org/jira/browse/HDFS-727
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Eli Collins
>            Assignee: Eli Collins
>             Fix For: 0.20.2, 0.21.0
>
>         Attachments: hdfs727.patch
>
>
> In hdfsOpenFile in libhdfs invokeMethod needs to cast the block size argument to a jlong
so a full 8 bytes are passed (rather than 4 plus some garbage which causes writes to fail
due to a bogus block size). 

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