[jira] [Created] (FLINK-4809) Operators should tolerate checkpoint failures

[Shang Yuanchun (Jira)]

Stephan Ewen created FLINK-4809:
-----------------------------------

             Summary: Operators should tolerate checkpoint failures
                 Key: FLINK-4809
                 URL: https://issues.apache.org/jira/browse/FLINK-4809
             Project: Flink
          Issue Type: Sub-task
          Components: State Backends, Checkpointing
            Reporter: Stephan Ewen
             Fix For: 1.2.0


Operators should try/catch exceptions in the synchronous and asynchronous part of the checkpoint and send a {{DeclineCheckpoint}} message as a result.

The decline message should have the failure cause attached to it.

The checkpoint barrier should be sent anyways as a first step before attempting to make a state checkpoint, to make sure that downstream operators do not block in alignment.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)