[BEAM-11113] Default compressor change breaks dataflow python streaming job update compatibility

• Type: Bug
• Status: Triage Needed
• Priority: P2
• Resolution: Fixed
• Affects Version/s: 2.24.0, 2.25.0
• Fix Version/s: 2.26.0
• Component/s: sdk-py-core
• Assignee: Unassigned
• Reporter: Yichi Zhang
• Created: 23/Oct/20 20:26
• Updated: 13/Apr/23 11:02
• Resolved: 04/Dec/20 17:44

Description

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.

Issue Links

• links to: GitHub Pull Request #13183