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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (BEAM-2981) Unable to deserialize ProtoCoder in Dataflow, serialVersionUID mismatch
Date Fri, 22 Sep 2017 21:13:00 GMT


ASF GitHub Bot commented on BEAM-2981:

GitHub user kennknowles opened a pull request:

    [BEAM-2981] Update Dataflow worker version to attain ProtoCoder serialVersionUID fix

    Follow this checklist to help us incorporate your contribution quickly and easily:
     - [x] Make sure there is a [JIRA issue](
filed for the change (usually before you start working on it).  Trivial changes like typos
do not require a JIRA issue.  Your pull request should address just this issue, without pulling
in other changes.
     - [x] Each commit in the pull request should have a meaningful subject line and body.
     - [x] Format the pull request title like `[BEAM-XXX] Fixes bug in ApproximateQuantiles`,
where you replace `BEAM-XXX` with the appropriate JIRA issue.
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You can merge this pull request into a Git repository by running:

    $ git pull proto-worker-version

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 #3889
commit 85901d3f5d5e648862155c144f9158ec21a874b2
Author: Kenneth Knowles <>
Date:   2017-09-22T19:01:13Z

    Update Dataflow worker to 20170922-01


> Unable to deserialize ProtoCoder in Dataflow, serialVersionUID mismatch
> -----------------------------------------------------------------------
>                 Key: BEAM-2981
>                 URL:
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-dataflow
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles
>            Priority: Blocker
>             Fix For: 2.2.0
> Jenkins failure:$beam-runners-google-cloud-dataflow-java/#showFailuresLink
> {code}
> Caused by: org.apache.beam.sdk.extensions.protobuf.ProtoCoder;
local class incompatible: stream classdesc serialVersionUID = -5043999806040629525, local
class serialVersionUID = 5772992315255168068
> {code}

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