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Posted to common-issues@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2012/05/02 08:42:58 UTC

[jira] [Updated] (HADOOP-8336) LocalFileSystem Does not seek to the correct location when Checksumming is off.

     [ https://issues.apache.org/jira/browse/HADOOP-8336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon updated HADOOP-8336:
--------------------------------

    Attachment: branch-1-test.txt

Since this was reported against branch-1 (assumedly) I wrote a test on that branch, but couldn't get it to fail. Elliott, can you describe the way to reproduce the issue? Or contribute a test case which reproduces it?
                
> LocalFileSystem Does not seek to the correct location when Checksumming is off.
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-8336
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8336
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>            Reporter: Elliott Clark
>            Assignee: Todd Lipcon
>         Attachments: branch-1-test.txt
>
>
> Hbase was seeing an issue when trying to read data from a local filesystem instance with setVerifyChecksum(false).  On debugging into it, the seek on the file was seeking to the checksum block index, but since checksumming was off that was the incorrect location.

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