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https://issues.apache.org/jira/browse/FLINK-27707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jane Chan updated FLINK-27707:
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Description:
As discussed offline, the new implementation has been modified.
* Don't perform a scan during the planning phase. Instead, we put a flag along
with part spec to indicate it is ordinary manual trigger compaction.
* Introduce a new {{PrecommittingSinkWriter}} impl to perform dedicated
compaction tasks. This writer is responsible for scanning and selecting
partition and bucket according to the current sub-task id, and then creating a
per-bucket compact writer to submit compaction. Since there's no data shuffled
between source and sink, so all the compaction is performed when
{{SinkWriterOperator#endInput}} is invoked.
was:Perform the scan on the latest snapshot and pick data files to compact
and serialize to JSON string.
> Implement ManagedTableFactory#onCompactTable
> --------------------------------------------
>
> Key: FLINK-27707
> URL: https://issues.apache.org/jira/browse/FLINK-27707
> Project: Flink
> Issue Type: Sub-task
> Components: Table Store
> Affects Versions: table-store-0.2.0
> Reporter: Jane Chan
> Priority: Major
> Labels: pull-request-available
> Fix For: table-store-0.2.0
>
>
> As discussed offline, the new implementation has been modified.
> * Don't perform a scan during the planning phase. Instead, we put a flag
> along with part spec to indicate it is ordinary manual trigger compaction.
> * Introduce a new {{PrecommittingSinkWriter}} impl to perform dedicated
> compaction tasks. This writer is responsible for scanning and selecting
> partition and bucket according to the current sub-task id, and then creating
> a per-bucket compact writer to submit compaction. Since there's no data
> shuffled between source and sink, so all the compaction is performed when
> {{SinkWriterOperator#endInput}} is invoked.
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