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https://issues.apache.org/jira/browse/BEAM-7462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16853517#comment-16853517
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Alex Amato commented on BEAM-7462:
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Next steps are to determine where the Pcolleciton with the failed coder is
defined, as its not in the bundle descriptor itself (it may be in one of the
serialized payloads). See where I have added debug logging in,:
[https://github.com/apache/beam/pull/8416]
The ElementFnDataReceiver is trying to sample elements by encoding some of them
with the pcollections coder. We are incorrectly seeing a WindowValue coder
instead of an ElementCoder which triggers this failure. We suspect that the
runner is not properly providing the correct coder, and its only been exercised
by this code (most coders are not exercised, only those on GBK/stage boundaries
are).
[https://github.com/apache/beam/pull/8416] exercises all coders now, which is
triggering these bugs due to misconfiguration. Next steps are to determine why
this is happening, what pcollection/ptransform this comes from, and to fix the
configuration in the runner harness.
Also this related issue could be fixed, but there was a work around.
https://issues.apache.org/jira/browse/BEAM-7452?filter=-2
> Add Sampled Byte Count Metric to the Java SDK
> ---------------------------------------------
>
> Key: BEAM-7462
> URL: https://issues.apache.org/jira/browse/BEAM-7462
> Project: Beam
> Issue Type: New Feature
> Components: java-fn-execution
> Reporter: Alex Amato
> Priority: Major
> Attachments: bundle_descriptor_dump.txt
>
>
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