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https://issues.apache.org/jira/browse/SPARK-49411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim reassigned SPARK-49411:
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Assignee: Siying Dong
> Communicate RocksDB State Store CheckpointID Between Driver and Executor
> ------------------------------------------------------------------------
>
> Key: SPARK-49411
> URL: https://issues.apache.org/jira/browse/SPARK-49411
> Project: Spark
> Issue Type: Task
> Components: Structured Streaming
> Affects Versions: 4.0.0
> Reporter: Siying Dong
> Assignee: Siying Dong
> Priority: Major
> Labels: pull-request-available
>
> A incremental step to implement RocksDB state store checkpoint format V2.
> Once conf STATE_STORE_CHECKPOINT_FORMAT_VERSION is set to be higher than
> version 2, the executor returns checkpointID to the driver (only done for
> RocksDB). The driver stores is locally. For the next batch, the checkpointID
> is sent to the executor to be used to load the state store. If the local
> version of the executor doesn't match the uniqueID, it will reload from the
> checkpoint.
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