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https://issues.apache.org/jira/browse/HDFS-9613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kai Zheng updated HDFS-9613:
----------------------------
Summary: Don't compare file checksums after copy if block size and checksum
opt are not preserved for replicated files (was: Some improvement and clean up
in distcp)
> Don't compare file checksums after copy if block size and checksum opt are
> not preserved for replicated files
> -------------------------------------------------------------------------------------------------------------
>
> 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, HDFS-9613-v2.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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