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https://issues.apache.org/jira/browse/FLINK-23399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-23399:
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Labels: pull-request-available stale-assigned (was: pull-request-available)
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> Add a performance benchmark for statebackend rescaling
> ------------------------------------------------------
>
> Key: FLINK-23399
> URL: https://issues.apache.org/jira/browse/FLINK-23399
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / State Backends
> Affects Versions: 1.14.0
> Reporter: Yanfei Lei
> Assignee: Yanfei Lei
> Priority: Minor
> Labels: pull-request-available, stale-assigned
>
> We notice that rescaling is not covered in the current state benchmark, so
> we'd like to introduce a benchmark to test performance of state backend
> restore durign rescaling in flink-benchmark.
> The benchmark process is:
> (1) generate some states,
> (2) change the parallelism of the operator, and restore from these states
> generate before.
> The implementation of this benchmark is based on
> {{RocksIncrementalCheckpointRescalingTest}}, and *_AverageTime_* is used to
> measure the rescaling performance on each subtask.
>
> And this benchmark does not conflict with
> `RocksIncrementalCheckpointRescalingBenchmarkTest` in
> PR([#14893|https://github.com/apache/flink/pull/14893]). Compare with
> `RocksIncrementalCheckpointRescalingBenchmarkTest`, this benchmark supports
> testing rescaling on different state backends, and has a finer granularity.
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