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From cestella <>
Subject [GitHub] incubator-metron pull request #428: METRON-678: Multithread the flat file lo...
Date Sat, 28 Jan 2017 18:33:12 GMT
GitHub user cestella reopened a pull request:

    METRON-678: Multithread the flat file loader

    Currently the flat file loader is single threaded in its writing to HBase. We could make
this a lot faster by multithreading the HBase puts.
    Executing this on single node vagrant with the following configuration for 100k 2-column
CSV enrichment import:
    * a batch size of 128
    * number of threads varying between 1 and 6
    A reasonable speedup was achieved:
    | Number of Threads | Time (in seconds) |
    | 1                 | 91.019            |
    | 2                 | 76.07             |
    | 3                 | 39.974            |
    | 4                 | 35.039            |
    | 5                 | 30.531            |
    | 6                 | 30.559            |

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

    $ git pull parallel_extractor

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

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

    This closes #428
commit 47d814ef95d67738d20ce5dc530ba7b05d418a96
Author: cstella <>
Date:   2017-01-27T23:15:44Z

    Multithreading the SimpleEnrichmentFlatFileLoader

commit 918d4ce4aea5d7dfde992f32bf049c70f35dd182
Author: cstella <>
Date:   2017-01-27T23:23:19Z

    doc changes.

commit c6ca3a86881eb77bc9598a61e3c0cf8280ccb03f
Author: cstella <>
Date:   2017-01-27T23:39:56Z

    Updating docs.

commit 8c9a79cdfa38ea2fbd161095d5e346147558ec5f
Author: cstella <>
Date:   2017-01-28T03:36:31Z

    Investigating integration tests.

commit 315bd181aa634290ab987441d81c28addb7952e2
Author: cstella <>
Date:   2017-01-28T04:09:28Z

    Update integration test to be a proper integration test.

commit 004c6f41b6c1cc3ecea70513e1a468501bd32e3c
Author: cstella <>
Date:   2017-01-28T04:49:37Z

    Adding spliterator unit test for completeness

commit f8dd48ef920c948e1fc5ff736e386f641e551b2b
Author: cstella <>
Date:   2017-01-28T05:01:42Z

    Updating test to use a proper file

commit 9b04f9723d442c8f4fb7a8bcaa1d733fc1305dc4
Author: cstella <>
Date:   2017-01-28T05:17:12Z

    Updating docs and renaming a few things.

commit eb5b82cc35bd767a169f548ea8144dd9ae165f84
Author: cstella <>
Date:   2017-01-28T05:23:25Z

    Update one more test case.


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