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https://issues.apache.org/jira/browse/BEAM-383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15388653#comment-15388653
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ASF GitHub Bot commented on BEAM-383:
-------------------------------------

GitHub user ianzhou1 opened a pull request:

    https://github.com/apache/incubator-beam/pull/707

    [BEAM-383] BigQueryIO update sink to shard into multiple write jobs

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

    $ git pull https://github.com/ianzhou1/incubator-beam BigQueryBranch

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

    https://github.com/apache/incubator-beam/pull/707.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 #707
    
----
commit 5294e161d38c37a71c54a8925288f488e9982cab
Author: Ian Zhou <ianz...@google.com>
Date:   2016-07-20T22:56:21Z

    Modified BigQueryIO to write based on number of files and file sizes

commit b96184d221de08fd825c9f914b8dc393987c6de9
Author: Ian Zhou <ianz...@google.com>
Date:   2016-07-22T00:04:25Z

    Added unit tests for DoFns used in BigQueryWrite

----


> BigQueryIO: update sink to shard into multiple write jobs
> ---------------------------------------------------------
>
>                 Key: BEAM-383
>                 URL: https://issues.apache.org/jira/browse/BEAM-383
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-gcp
>            Reporter: Daniel Halperin
>            Assignee: Ian Zhou
>
> BigQuery has global limits on both the # files that can be written in a 
> single job and the total bytes in those files. We should be able to modify 
> BigQueryIO.Write to chunk into multiple smaller jobs that meet these limits, 
> write to temp tables, and atomically copy into the destination table.
> This functionality will let us safely stay within BQ's load job limits.



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