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Posted to dev@kylin.apache.org by "Yerui Sun (JIRA)" <ji...@apache.org> on 2016/07/14 14:43:20 UTC

[jira] [Created] (KYLIN-1894) GlobalDictionary may corrupt when server suddenly crash

Yerui Sun created KYLIN-1894:
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             Summary: GlobalDictionary may corrupt when server suddenly crash
                 Key: KYLIN-1894
                 URL: https://issues.apache.org/jira/browse/KYLIN-1894
             Project: Kylin
          Issue Type: Improvement
          Components: Metadata
    Affects Versions: v1.5.3
            Reporter: Yerui Sun
            Assignee: Yerui Sun
             Fix For: v1.5.3


Global Dictionary store data on hdfs directly, and overwrite directly when data file updated. If the server crashed suddenly during writing file, the data file may be corrupt and can't be recovered.

To resolve this problem, copy the data file into a tmp directory and copy back after the file is updated successfully. 
I'll post a patch later with this solution.



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