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From "Vikas Kedigehalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (BEAM-991) DatastoreIO Write should flush early for large batches
Date Wed, 16 Nov 2016 17:40:58 GMT
Vikas Kedigehalli created BEAM-991:
--------------------------------------

             Summary: DatastoreIO Write should flush early for large batches
                 Key: BEAM-991
                 URL: https://issues.apache.org/jira/browse/BEAM-991
             Project: Beam
          Issue Type: Bug
          Components: sdk-java-gcp
            Reporter: Vikas Kedigehalli
            Assignee: Vikas Kedigehalli


If entities are large (avg size > 20KB) then the a single batched write (500 entities)
would exceed the Datastore size limit of a single request (10MB) from https://cloud.google.com/datastore/docs/concepts/limits.

First reported in: http://stackoverflow.com/questions/40156400/why-does-dataflow-erratically-fail-in-datastore-access



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