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Posted to hdfs-issues@hadoop.apache.org by "Kai Zheng (JIRA)" <ji...@apache.org> on 2016/01/05 06:48:39 UTC

[jira] [Updated] (HDFS-9613) Minor improvement and clean up in distcp

     [ https://issues.apache.org/jira/browse/HDFS-9613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kai Zheng updated HDFS-9613:
----------------------------
    Attachment: HDFS-9613-v1.patch

Uploaded a patch for the review. Thanks.

> Minor improvement and clean up in distcp
> ----------------------------------------
>
>                 Key: HDFS-9613
>                 URL: https://issues.apache.org/jira/browse/HDFS-9613
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>            Priority: Minor
>         Attachments: HDFS-9613-v1.patch
>
>
> While working on related issue, it was noticed there are some places in {{distcp}} that's better to be improved and cleaned up. Particularly, after a file is coped to target cluster, it will check the copied file is fine or not. When checking, better to check block size first, then the checksum, because the later is a little expensive.



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