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https://issues.apache.org/jira/browse/FLINK-24208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17419016#comment-17419016
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Chesnay Schepler commented on FLINK-24208:
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In order for this to work reliably in HA setups where requests might not always
be sent to the same JM we also need to resolve FLINK-18312.
> Allow idempotent savepoint triggering
> -------------------------------------
>
> Key: FLINK-24208
> URL: https://issues.apache.org/jira/browse/FLINK-24208
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing, Runtime / REST
> Reporter: Robert Metzger
> Priority: Major
>
> As a user of Flink, I want to be able to trigger a savepoint from an external
> system in a way that I can detect if I have requested this savepoint already.
> By passing a custom ID to the savepoint request, I can check (in case of an
> error of the original request, or the external system) if the request has
> been made already.
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