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ASF GitHub Bot commented on FLINK-2292: --------------------------------------- Github user StephanEwen commented on the pull request: https://github.com/apache/flink/pull/896#issuecomment-120054333 The is a potential modification conflict: Drawing a snapshot for serialization and registering a new accumulator can lead to a ConcurrentModificationException in the drawing of the snapshot. > Report accumulators periodically while job is running > ----------------------------------------------------- > > Key: FLINK-2292 > URL: https://issues.apache.org/jira/browse/FLINK-2292 > Project: Flink > Issue Type: Sub-task > Components: JobManager, TaskManager > Reporter: Maximilian Michels > Assignee: Maximilian Michels > Fix For: 0.10 > > > Accumulators should be sent periodically, as part of the heartbeat that sends > metrics. This allows them to be updated in real time. -- This message was sent by Atlassian JIRA (v6.3.4#6332)