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https://issues.apache.org/jira/browse/BEAM-11113?focusedWorklogId=504372&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-504372
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ASF GitHub Bot logged work on BEAM-11113:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 23/Oct/20 23:43
Start Date: 23/Oct/20 23:43
Worklog Time Spent: 10m
Work Description: y1chi commented on pull request #13183:
URL: https://github.com/apache/beam/pull/13183#issuecomment-715634124
> LGTM. This is nice that, it is limited to coder compression.
>
> Can we verify that this will be update compatible with 2.23.0 ?
yeah I've tested update from 2.23.0 and serializing/deserializing coders
seem to be the only place causing incompatibility.
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Issue Time Tracking
-------------------
Worklog Id: (was: 504372)
Time Spent: 40m (was: 0.5h)
> Default compressor change breaks dataflow python streaming job update
> compatibility
> -----------------------------------------------------------------------------------
>
> Key: BEAM-11113
> URL: https://issues.apache.org/jira/browse/BEAM-11113
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Affects Versions: 2.24.0, 2.25.0
> Reporter: Yichi Zhang
> Assignee: Yichi Zhang
> Priority: P2
> Time Spent: 40m
> Remaining Estimate: 0h
>
> The default pickler compressor switched from zlib to bz2 in
> https://github.com/apache/beam/commit/103facbf80c2e4786e60367161ec59352196d04a#diff-c0972fb2e432f61d6dd354ca320853c520d0b414bb0113e375e1b077c8ec785c,
> this will change the pickled Coder representations in the job graph and lead
> to pipeline update failure on Dataflow.
> Sdk versions using bz2 in Coder pickler may not be update-able to future sdk
> versions on dataflow.
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