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https://issues.apache.org/jira/browse/FLINK-26075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marios Trivyzas reassigned FLINK-26075:
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Assignee: Marios Trivyzas
> Persist per-ExecNode configuration
> ----------------------------------
>
> Key: FLINK-26075
> URL: https://issues.apache.org/jira/browse/FLINK-26075
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Marios Trivyzas
> Priority: Major
>
> Even though a compiled plan is static, some configuration options still
> change the topology of an ExecNode. In general, we will request users to keep
> the configuration constant between Flink versions. However, setting
> configuration more fine-grained per-ExecNode is a frequently requested
> feature. It can also allow us to set the parallelism more fine-grained in the
> future.
> We need the following infrastructure for the mentioned use cases:
> - Every ExecNode can have a configuration
> - By default the configuration per node are the values from the global
> configuration using the keys from the ExecNodeMetadata annotation.
> - We persist the ExecNode configuration in the JSON plan.
> - If the persisted plan contains a configuration, the persisted configuration
> is merged with the global configuration and has priority.
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