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https://issues.apache.org/jira/browse/FLINK-30971?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn Visser updated FLINK-30971:
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Fix Version/s: (was: 1.17.0)
> Modify the default value of parameter
> 'table.exec.local-hash-agg.adaptive.sampling-threshold'
> ---------------------------------------------------------------------------------------------
>
> Key: FLINK-30971
> URL: https://issues.apache.org/jira/browse/FLINK-30971
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Runtime
> Affects Versions: 1.17.0
> Reporter: Yunhong Zheng
> Priority: Major
> Labels: pull-request-available
>
> In our test environment, we set the default parallelism to 1 and got the
> most appropriate default value of parameter
> 'table.exec.local-hash-agg.adaptive.sampling-threshold' is 5000000. However,
> for these batch jobs with high parallelism in produce environment, the
> amount of data in single parallelism is almost less than 5000000. Therefore,
> after testing, we found that set to 500000 can get better results.
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