Till Rohrmann created FLINK-2223:
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Summary: Web frontend shows wrong accumulator results for latest
job
Key: FLINK-2223
URL: https://issues.apache.org/jira/browse/FLINK-2223
Project: Flink
Issue Type: Bug
Reporter: Till Rohrmann
Priority: Minor
The web frontend always displays for the latest finished job in the history
that it has an accumulator with name {{JobID (SerializedListAccumulator)}} and
value {{org.apache.flink.api.common.accumulators.SerializedListAccumulator}}.
This seems to an artifact of the way we send accumulators via akka. Maybe the
{{SerializedListAccumulator}} is always collected in the JobManager's
{{AccumulatorManager}} no matter whether the job used accumulators or not.
Then, this accumulator is returned to the web frontend as long as no other job
was started.
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