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https://issues.apache.org/jira/browse/BEAM-1330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16371080#comment-16371080
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Julien Sobczak commented on BEAM-1330:
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Hi,
Have someone find a workaround for this problem? Removing duplicates inside the
window does not work because it seems several windows are being sent in the
same batch.
Julien
> DatastoreIO Writes should flush early when duplicate keys arrive.
> -----------------------------------------------------------------
>
> Key: BEAM-1330
> URL: https://issues.apache.org/jira/browse/BEAM-1330
> Project: Beam
> Issue Type: Improvement
> Components: io-java-gcp
> Reporter: Vikas Kedigehalli
> Assignee: Vikas Kedigehalli
> Priority: Minor
>
> DatastoreIO writes batches upto 500 entities (rpc limit for Cloud Datastore),
> before flushing them out. The writes are non-transactional and thus do not
> support duplicate keys in the writes. This can be problem, especially when
> using a non global windowing, where multiple windows for the same key end up
> in the same batch, and prevents the writes from succeeding.
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