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https://issues.apache.org/jira/browse/HAWQ-236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15048020#comment-15048020
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ASF GitHub Bot commented on HAWQ-236:
-------------------------------------

GitHub user zhangh43 opened a pull request:

    https://github.com/apache/incubator-hawq/pull/171

    HAWQ-236. Meta data hit ratio is -0.0 when file len is zero.

    hit ratio should be 0.0 not -0.0 when file len i zero

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

    $ git pull https://github.com/zhangh43/incubator-hawq hawq236

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

    https://github.com/apache/incubator-hawq/pull/171.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 #171
    
----
commit e48708358a20b49256f9eec486a0c29b55286a18
Author: hubertzhang <[email protected]>
Date:   2015-12-09T04:36:52Z

    HAWQ-236. Meta data hit ratio is -0.0 when file len is zero.

----


> Meta data hit ratio is -0.0 when file len is zero.
> --------------------------------------------------
>
>                 Key: HAWQ-236
>                 URL: https://issues.apache.org/jira/browse/HAWQ-236
>             Project: Apache HAWQ
>          Issue Type: Bug
>          Components: Core
>            Reporter: Hubert Zhang
>            Assignee: Hubert Zhang
>
> Meta data hit ratio is -0.0 when file len is zero.
> We need to correct it to 0.0
> You can search the log tp verify it(log schema): 
> "fetch blocks of %d files overall execution time: %d us with hit rate %f""



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