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ASF GitHub Bot commented on FLINK-3190: --------------------------------------- Github user fijolekProjects closed the pull request at: https://github.com/apache/flink/pull/1954 > Retry rate limits for DataStream API > ------------------------------------ > > Key: FLINK-3190 > URL: https://issues.apache.org/jira/browse/FLINK-3190 > Project: Flink > Issue Type: Improvement > Reporter: Sebastian Klemke > Assignee: Michał Fijołek > Priority: Minor > > For a long running stream processing job, absolute numbers of retries don't > make much sense: The job will accumulate transient errors over time and will > die eventually when thresholds are exceeded. Rate limits are better suited in > this scenario: A job should only die, if it fails too often in a given time > frame. To better overcome transient errors, retry delays could be used, as > suggested in other issues. > Absolute numbers of retries can still make sense, if failing operators don't > make any progress at all. We can measure progress by OperatorState changes > and by observing output, as long as the operator in question is not a sink. > If operator state changes and/or operator produces output, we can assume it > makes progress. > As an example, let's say we configured a retry rate limit of 10 retries per > hour and a non-sink operator A. If the operator fails once every 10 minutes > and produces output between failures, it should not lead to job termination. > But if the operator fails 11 times in an hour or does not produce output > between 11 consecutive failures, job should be terminated. -- This message was sent by Atlassian JIRA (v6.3.4#6332)