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https://issues.apache.org/jira/browse/BEAM-7365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16845130#comment-16845130
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Valentyn Tymofieiev commented on BEAM-7365:
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It is also very slow on Python 2, so the slowness is not related to changes of
threading model on Python 3.
> apache_beam.io.avroio_test.TestAvro.test_dynamic_work_rebalancing_exhaustive
> is very slow
> -----------------------------------------------------------------------------------------
>
> Key: BEAM-7365
> URL: https://issues.apache.org/jira/browse/BEAM-7365
> Project: Beam
> Issue Type: Sub-task
> Components: io-python-avro
> Reporter: Robert Bradshaw
> Assignee: Frederik Bode
> Priority: Major
>
> {noformat}
> $ python setup.py test -s
> apache_beam.io.avroio_test.TestFastAvro.test_dynamic_work_rebalancing_exhaustive
> test_dynamic_work_rebalancing_exhaustive
> (apache_beam.io.avroio_test.TestFastAvro) ... WARNING:root:After 101
> concurrent splitting trials at item #2, observed only failure, giving up on
> this item
> WARNING:root:After 101 concurrent splitting trials at item #21, observed only
> failure, giving up on this item
> WARNING:root:After 101 concurrent splitting trials at item #22, observed only
> failure, giving up on this item
> WARNING:root:After 1014 total concurrent splitting trials, considered only 25
> items, giving up.
> ok
> ----------------------------------------------------------------------
> Ran 1 test in 172.223s
>
> {noformat}
> Compare this with
> {noformat}
> $ python setup.py test -s
> apache_beam.io.avroio_test.TestAvro.test_dynamic_work_rebalancing_exhaustive
> test_dynamic_work_rebalancing_exhaustive
> (apache_beam.io.avroio_test.TestAvro) ... ok
> ----------------------------------------------------------------------
> Ran 1 test in 0.623s
> OK
> {noformat}
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