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From "Fu Kai (Jira)" <j...@apache.org>
Subject [jira] [Created] (FLINK-22805) Dynamic configuration of Flink checkpoint interval
Date Mon, 31 May 2021 02:35:00 GMT
Fu Kai created FLINK-22805:
------------------------------

             Summary: Dynamic configuration of Flink checkpoint interval
                 Key: FLINK-22805
                 URL: https://issues.apache.org/jira/browse/FLINK-22805
             Project: Flink
          Issue Type: New Feature
          Components: Runtime / Checkpointing
    Affects Versions: 1.13.1
            Reporter: Fu Kai
             Fix For: 1.14.0


Flink currently does not support dynamic configuration of checkpoint interval on the fly.
It's useful for use cases like backfill/cold-start from a stream containing whole history.

 
In the cold-start phase, resources are fully utilized and the back-pressure is high for all
upstream operators, causing the checkpoint timeout constantly. The real production traffic
is far less than that and the provisioned resource is capable of handling it. 
 
With the dynamic checkpoint interval configuration, the cold-start process can be speeded
up with less frequent checkpoint interval or even turned off. After the process is completed,
the checkpoint interval can be updated to normal.

 



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