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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/03/23 11:02:25 UTC

[jira] [Commented] (FLINK-3651) Fix faulty RollingSink Restore

    [ https://issues.apache.org/jira/browse/FLINK-3651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15208158#comment-15208158 ] 

ASF GitHub Bot commented on FLINK-3651:
---------------------------------------

GitHub user aljoscha opened a pull request:

    https://github.com/apache/flink/pull/1830

    [FLINK-3651] Fix faulty RollingSink Restore

    On restore the sink for subtask index i has to cleanup leftover files
    for subtask i. The pattern used for checking this was not properly
    terminated so the sink for subtask 1 would, for example, delete some
    files for sink i=11. This would lead to data loss.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/aljoscha/flink rolling-sink-fix

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/1830.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1830
    
----
commit a78d88f01a3d0da3bcfaad07c9abf419061a8025
Author: Aljoscha Krettek <al...@gmail.com>
Date:   2016-03-07T16:15:20Z

    [FLINK-3651] Fix faulty RollingSink Restore
    
    On restore the sink for subtask index i has to cleanup leftover files
    for subtask i. The pattern used for checking this was not properly
    terminated so the sink for subtask 1 would, for example, delete some
    files for sink i=11. This would lead to data loss.

----


> Fix faulty RollingSink Restore
> ------------------------------
>
>                 Key: FLINK-3651
>                 URL: https://issues.apache.org/jira/browse/FLINK-3651
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
>
> The RollingSink restore logic has a bug where the sink for subtask index 1 also removes files for subtask index 11 because the regex that checks for the file name also matches that one. Adding the suffix to the regex should solve the problem because then the regex for 1 will only match files for subtask index 1.



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