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Posted to issues@beam.apache.org by "Udi Meiri (Jira)" <ji...@apache.org> on 2021/01/30 00:27:00 UTC

[jira] [Created] (BEAM-11722) SpannerIO.read() parallelism limited by partition count

Udi Meiri created BEAM-11722:
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             Summary: SpannerIO.read() parallelism limited by partition count
                 Key: BEAM-11722
                 URL: https://issues.apache.org/jira/browse/BEAM-11722
             Project: Beam
          Issue Type: Bug
          Components: io-java-gcp, runner-dataflow
            Reporter: Udi Meiri


Setting the partition size / count is not possible: 
{code} Note: This hint is currently ignored by sessions.partitionQuery and sessions.partitionRead requests.{code}
https://cloud.google.com/spanner/docs/reference/rest/v1/PartitionOptions

Adding a Reshuffle might be the only choice, but it adds time and resource usage.

cc: [~chamikara][~nielm]



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