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https://issues.apache.org/jira/browse/BEAM-4062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pablo Estrada reassigned BEAM-4062:
-----------------------------------
Assignee: Ahmet Altay (was: Udi Meiri)
> Performance regression in FileBasedSink
> ---------------------------------------
>
> Key: BEAM-4062
> URL: https://issues.apache.org/jira/browse/BEAM-4062
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Udi Meiri
> Assignee: Ahmet Altay
> Priority: Blocker
> Fix For: 2.5.0
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> [https://github.com/apache/beam/pull/4648] has added:
> * 3 or more stat() calls per output file (in pre_finalize and
> finalize_writes)
> * serial unbatched delete()s (in pre_finalize)
> Solution will be to list files in a batch operation (match()), and to
> delete() in batch mode, or use multiple threads if that's not possible.
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