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https://issues.apache.org/jira/browse/HADOOP-4292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12637273#action_12637273
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Tsz Wo (Nicholas), SZE commented on HADOOP-4292:
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> As Raghu points out and you acknowledged on the list, only the CRC file needs
> to be truncated.
Even only the CRC file is truncated, fail in append could result in
data-checksum inconsistency. How could we fix this?
> The reason that I did not propose adding truncate() to FileSystem.java is
> that I did not make dramatic change to FileSystem APIs.
There will be a lot of changes. Are we going to apply all these changes to
0.18 and onwards?
> append() does not work for LocalFileSystem
> ------------------------------------------
>
> Key: HADOOP-4292
> URL: https://issues.apache.org/jira/browse/HADOOP-4292
> Project: Hadoop Core
> Issue Type: Bug
> Components: fs
> Affects Versions: 0.18.0, 0.19.0
> Reporter: Raghu Angadi
> Assignee: Hairong Kuang
> Priority: Blocker
> Fix For: 0.18.2, 0.19.0
>
>
> append is supported by LocalFileSystem but it does not update crc when a file
> is appended.
> When you enable checksum verification {{TestLocalFileSystem.testAppend}}
> fails. Since HADOOP-4277 is a blocker for 0.17 I am planning to disable this
> test in HADOOP-4277.
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