D Bodych created BEAM-8257:
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Summary: BigQueryIO - only first day table can be created, despite
having CreateDisposition.CREATE_IF_NEEDED
Key: BEAM-8257
URL: https://issues.apache.org/jira/browse/BEAM-8257
Project: Beam
Issue Type: Bug
Components: io-java-gcp
Affects Versions: 2.15.0
Environment: Dataflow streaming pipeline
Reporter: D Bodych
I have a dataflow job processing data from pub/sub defined like this:
*read from pub/sub -> process (my function) -> group into day windows -> write
to BQ*
I'm using *Write.Method.FILE_LOADS* because of bounded input.
My job works fine, processing lots of GBs of data but it fails and tries to
retry forever when it gets to create another table. The job is meant to run
continuously and create day tables on its own, it does fine on the first few
ones but then gives me indefinitely:
{code:java}
Processing stuck in step
write-bq/BatchLoads/SinglePartitionWriteTables/ParMultiDo(WriteTables) for at
least 05h30m00s without outputting or completing in state finish{code}
Before this happens it also throws:
{code:java}
Load job <job_id> failed, will retry: {"errorResult": {"message":"Not found:
Table <name_of_table> was not found in location US","reason":"notFound"}
{code}
It is indeed a right error because this table doesn't exists. Problem is that
the job should create it on its own because of defined option
*CreateDisposition.CREATE_IF_NEEDED*.
The number of day tables that it creates correctly without a problem depends on
number of workers. It seems that when some worker creates one table its
*CreateDisposition* changes to *CREATE_NEVER* causing the problem, but it's
only my guess.
The similar problem was reported here but without any definite answer:
https://issues.apache.org/jira/browse/BEAM-3772?focusedCommentId=16387609&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16387609
ProcessElement definition here seems to give some clues but I cannot really say
how it works with multiple workers:
[https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/WriteTables.java#L138]
I use 2.15.0 Apache SDK.
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