[jira] [Created] (FLINK-15253) Accumulators are not checkpointed

[Shang Yuanchun (Jira)]

Maximilian Michels created FLINK-15253:
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             Summary: Accumulators are not checkpointed
                 Key: FLINK-15253
                 URL: https://issues.apache.org/jira/browse/FLINK-15253
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Checkpointing
            Reporter: Maximilian Michels


Accumulators are not checkpointed which make them relatively useless for streaming applications. They are also tight to the heartbeat (FLINK-15252), which makes them fragile.

We could consider deactivating accumulators in streaming mode since they seem to originally be a batch feature.



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