[jira] [Created] (FLINK-3274) Prefix Kafka connector accumulators with unique id

[Shang Yuanchun (Jira)]

Robert Metzger created FLINK-3274:
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             Summary: Prefix Kafka connector accumulators with unique id
                 Key: FLINK-3274
                 URL: https://issues.apache.org/jira/browse/FLINK-3274
             Project: Flink
          Issue Type: Bug
          Components: Kafka Connector
    Affects Versions: 1.0.0
            Reporter: Robert Metzger
            Assignee: Robert Metzger


Flink might chain together two data sinks under certain conditions.
In that case, the metrics accumulators will have a name clash (each task can have an accumulator only once, with chaining multiple sinks are sharing a task).

Also, when merging accumulators from different tasks for a per-job result, having multiple kafka producers or consumers will lead to wrong results as the merging happens only on a per-name basis.

With this issue, I'd like to introduce a unique id for consumers and producers when registering accumulators



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