[BEAM-991] DatastoreIO Write should flush early for large batches

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Fix Version/s: 2.1.0
• Component/s: io-java-gcp
• Assignee: Vikas Kedigehalli
• Reporter: Vikas Kedigehalli
• Created: 16/Nov/16 17:40
• Updated: 16/May/20 13:54
• Resolved: 25/Jun/18 21:55

Description

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

Issue Links

• links to: GitHub Pull Request #1724
• links to: GitHub Pull Request #2948
• links to: GitHub Pull Request #3043
• links to: GitHub Pull Request #3302