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Posted to codereview@trafodion.apache.org by Weixin-Xu <gi...@git.apache.org> on 2017/06/16 03:03:40 UTC

[GitHub] incubator-trafodion pull request #1121: [TRAFODION-2346] ODB copy incorrect ...

GitHub user Weixin-Xu opened a pull request:

    https://github.com/apache/incubator-trafodion/pull/1121

    [TRAFODION-2346] ODB copy incorrect rows when using rowset and parallel

    fix jira TRAFODION-2346 and TRAFODION-2373 bug as follows:
    When using parallel, max rows/ parallel will cause rows cutting because of divisibility.
    When using rowset, per thread rows/rowset will cause one more round contained the same rowset.
    For example, rows = 5000 ,max = 500000 ,parallel = 6 :
    per thread rows(size_t) = max rows / parallel = 500000 / 6 = 83333
    round = per thread rows / rowset = 83333 / 5000 = 16 (actually do one more round)
    Finally , 5000 * 17 * 6 = 510000 rows will be load and copy

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

    $ git pull https://github.com/Weixin-Xu/incubator-trafodion odbtest

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

    https://github.com/apache/incubator-trafodion/pull/1121.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 #1121
    
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commit 0abe062c2ce5150ab36344434129d9864c9fea3f
Author: Weixin Xu <we...@esgyn.cn>
Date:   2017-06-16T02:44:53Z

    [TRAFODION-2346] ODB copy incorrect rows when using rowset and parallel

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[GitHub] incubator-trafodion pull request #1121: [TRAFODION-2346] ODB copy incorrect ...

Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:

    https://github.com/apache/incubator-trafodion/pull/1121


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