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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4605) Implement block-size independent file checksum
Date Fri, 15 Mar 2013 17:00:15 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13603514#comment-13603514

Kihwal Lee commented on HDFS-4605:

If we do this, there will be a restriction that the summing hash function should consume 32
bits (CRC32 or CRC32C) at a time.
> Implement block-size independent file checksum
> ----------------------------------------------
>                 Key: HDFS-4605
>                 URL: https://issues.apache.org/jira/browse/HDFS-4605
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, hdfs-client
>    Affects Versions: 3.0.0
>            Reporter: Kihwal Lee
> The value of current getFileChecksum() is block-size dependent. Since FileChecksum is
mainly intended for comparing content of files, removing this dependency will make FileCheckum
in HDFS relevant in more use cases.

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