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https://issues.apache.org/jira/browse/BEAM-4096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16440364#comment-16440364
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Jan Peuker edited comment on BEAM-4096 at 4/17/18 4:19 AM:
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Hi this is Jan, all set up with Jira now.
Small addition here: We also need to change withNumFileShards to a
ValueProvider which is a required option right now. The default 1000 mentioned
in the JavaDoc is incorrect and tends to cause OutOfMemoryError in
DataflowRunner. From my current, native, benchmarks it seems a more sensible
suggestion for most cases seems to have 100 shards (easy to calculate shard on
powers of 2 and reaches common chunk sizes earlier).
was (Author: janpeuker):
Hi this is Jan, all set up with Jira now.
Small addition here: We also need to be change withNumFileShards to a
ValueProviders which is a required option right now. The default 1000 mentioned
in the JavaDoc is incorrect and tends to cause OutOfMemoryError in
DataflowRunner. From my current, native, benchmarks it seems a more sensible
suggestion for most cases seems to have 100 shards (easy to calculate shard on
powers of 2 and reaches common chunk sizes earlier).
> BigQueryIO ValueProvider support for Method and Triggering Frequency
> --------------------------------------------------------------------
>
> Key: BEAM-4096
> URL: https://issues.apache.org/jira/browse/BEAM-4096
> Project: Beam
> Issue Type: Improvement
> Components: io-java-gcp
> Affects Versions: 2.4.0
> Reporter: Ryan McDowell
> Priority: Minor
> Fix For: 2.5.0
>
>
> Enhance BigQueryIO to accept ValueProviders for:
> * withMethod(..)
> * withTriggeringFrequency(..)
> It would allow Dataflow templates to accept these parameters at runtime
> instead of being hardcoded. This opens up the ability to create Dataflow
> templates which allow users to flip back-and-forth between batch and
> streaming inserts.
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