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From "Daniel Halperin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-991) DatastoreIO Write should flush early for large batches
Date Mon, 28 Nov 2016 19:21:58 GMT

    [ https://issues.apache.org/jira/browse/BEAM-991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15702845#comment-15702845
] 

Daniel Halperin commented on BEAM-991:
--------------------------------------

Hi [~JoshuaFox], [~vikasrk],

I agree with Vikas, though I would run some performance experiments with complex types (proto3
map type with some complex values filled in) to confirm there's no perf impact ;)

Joshua, do you know whether you'll be able to take this on?

Thanks,
Dan

> 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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