Vikas Kedigehalli created BEAM-1330:
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Summary: 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: sdk-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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