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ASF GitHub Bot commented on FLINK-6719: --------------------------------------- Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/5887#discussion_r183710783 --- Diff: docs/dev/stream/operators/process_function.md --- @@ -271,9 +271,9 @@ override def onTimer(timestamp: Long, ctx: OnTimerContext, out: Collector[OUT]): </div> </div> -## Optimizations +## Timers -### Timer Coalescing +### Optimizations - Timer Coalescing Every timer registered at the `TimerService` via `registerEventTimeTimer()` or --- End diff -- Also it would be great if you could find a good spot to add a note that calls to `processElement()` and `onTimer()` are always synchronized, i.e., users do not have to worry about concurrent modification of state. > Add details about fault-tolerance of timers to ProcessFunction docs > ------------------------------------------------------------------- > > Key: FLINK-6719 > URL: https://issues.apache.org/jira/browse/FLINK-6719 > Project: Flink > Issue Type: Improvement > Components: DataStream API, Documentation > Affects Versions: 1.5.0 > Reporter: Tzu-Li (Gordon) Tai > Assignee: Bowen Li > Priority: Major > Fix For: 1.6.0, 1.5.1 > > > The fault-tolerance of timers is a frequently asked questions on the mailing > lists. We should add details about the topic in the {{ProcessFunction}} docs. -- This message was sent by Atlassian JIRA (v7.6.3#76005)