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Posted to common-dev@hadoop.apache.org by "Kihwal Lee (Created) (JIRA)" <ji...@apache.org> on 2012/02/12 01:01:28 UTC

[jira] [Created] (HADOOP-8060) Add a capability to use of consistent checksums for append and copy

Add a capability to use of consistent checksums for append and copy
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                 Key: HADOOP-8060
                 URL: https://issues.apache.org/jira/browse/HADOOP-8060
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs, util
    Affects Versions: 0.23.0, 0.24.0, 0.23.1
            Reporter: Kihwal Lee
            Assignee: Kihwal Lee
             Fix For: 0.24.0, 0.23.2


After the improved CRC32C checksum feature became default, some of use cases involving data movement are no longer supported.  For example, when running DistCp to copy from a file stored with the CRC32 checksum to a new cluster with the CRC32C set to default checksum, the final data integrity check fails because of mismatch in checksums.

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[jira] [Resolved] (HADOOP-8060) Add a capability to discover and set checksum types per file.

Posted by "Kihwal Lee (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kihwal Lee resolved HADOOP-8060.
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    Resolution: Fixed
    
> Add a capability to discover and set checksum types per file.
> -------------------------------------------------------------
>
>                 Key: HADOOP-8060
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8060
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs, util
>    Affects Versions: 0.23.0, 0.23.1, 0.24.0
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>             Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
>
> After the improved CRC32C checksum feature became default, some of use cases involving data movement are no longer supported.  For example, when running DistCp to copy from a file stored with the CRC32 checksum to a new cluster with the CRC32C set to default checksum, the final data integrity check fails because of mismatch in checksums.

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