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https://issues.apache.org/jira/browse/FLINK-24208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17417954#comment-17417954
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Chesnay Schepler commented on FLINK-24208:
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?? I would assume sending the same `triggerId` if one already exists would
result in an error??
No it behaves as if it triggered the operation. Whether an operation already
existed (be it still in progress or completed (but not consumed!)) is
transparent to the user.
> 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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