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https://issues.apache.org/jira/browse/BEAM-14161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17548727#comment-17548727
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Beam JIRA Bot commented on BEAM-14161:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Add dynamic splitting to JdbcIO.readWithPartitions
> --------------------------------------------------
>
> Key: BEAM-14161
> URL: https://issues.apache.org/jira/browse/BEAM-14161
> Project: Beam
> Issue Type: Improvement
> Components: io-java-jdbc
> Reporter: Pablo Estrada
> Assignee: Jean-Baptiste Onofré
> Priority: P2
> Labels: stale-assigned
> Fix For: Not applicable
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Now, the JDBC IO is basically a {{DoFn}} executed with a {{{}ParDo{}}}. So,
> it means that parallelism is "limited" and executed on one executor.
> ReadWithPartitions does some preliminary partitioning of the data, but any
> skew in data range or workload will create an unbalanced workload.
>
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