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https://issues.apache.org/jira/browse/PIG-1664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12917778#action_12917778
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Xuefu Zhang commented on PIG-1664:
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+1
Patch looks good.
> [zebra] leading '_' in directory/file names should be ignored; the "pigtest"
> build target should include all pig-related zebra tests.
> -------------------------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1664
> URL: https://issues.apache.org/jira/browse/PIG-1664
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0, 0.7.0
> Reporter: Yan Zhou
> Assignee: Yan Zhou
> Priority: Trivial
> Fix For: 0.8.0
>
> Attachments: PIG-1664.patch
>
>
> Disk entries of names prefixed with '_' is excluded during split generation,
> and should be excluded from CG's data file processing too. Furthermore,
> FileInputFormat treats those files as hidden files. Zebra should ignore them
> to be safe.
> At writing, zebra creates _temporary directory under the table (PIG-1115).
> The directory may not be totally cleaned up due to lagging speculative
> executions. To avoid any confusions resulting from attempt to access the
> _temporary directory, the disk entries of names with the '_' prefix should
> also be excluded by Zebra processing.
> On the other hand, now that Zebra's pig tests run much faster using PIG's
> local mode, all pig-related should be included in the "pigtest" target to
> complete PIG's test coverage.
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