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https://issues.apache.org/jira/browse/HADOOP-16150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16780841#comment-16780841
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Eric Yang commented on HADOOP-16150:
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[[email protected]], in Hadoop wiki [create a github pull
request|https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute#HowToContribute-CreatingaGitHubpullrequest],
it says that precommit job will search the URL that starts with
"https://github.com"; and ends with ".patch" in the JIRA issue.
I set this jira to patch available and see if the patch gets tested.
> checksumFS doesn't wrap concat(): concatenated files don't have checksums
> -------------------------------------------------------------------------
>
> Key: HADOOP-16150
> URL: https://issues.apache.org/jira/browse/HADOOP-16150
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 3.2.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
>
> Followon from HADOOP-16107. FilterFS passes through the concat operation, and
> checksum FS doesn't override that call -so files created through concat *do
> not have checksums*.
> If people are using a checksummed fs directly with the expectations that they
> will, that expectation is not being met.
> What to do?
> * fail always?
> * fail if checksums are enabled?
> * try and implement the concat operation from raw local up at the checksum
> level
> append() just gives up always; doing the same for concat would be the
> simplest. Again, brings us back to "need a way to see if an FS supports a
> feature before invocation", here checksum fs would reject append and concat
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