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Jingsong Lee commented on BEAM-1517: ------------------------------------ [~kenn] Is it like {{LateDataDroppingDoFnRunner}} droping late data in {{processElement()}}? But how to deal with late timer?(not EVENT_TIME) Just throw it in {{onTimer()}} like element? > Garbage collect user state in Flink Runner > ------------------------------------------ > > Key: BEAM-1517 > URL: https://issues.apache.org/jira/browse/BEAM-1517 > Project: Beam > Issue Type: Bug > Components: runner-flink > Reporter: Aljoscha Krettek > Assignee: Aljoscha Krettek > > User facing state/timers in Beam are bound to the key/window of the data. > Right now, the Flink Runner does not clean up user state when the watermark > passes the GC horizon for the state associated with a given window. > Neither {{StateInternals}} nor the Flink state API support discarding state > for a whole namespace (which is the window in this case) so we might have to > manually set a GC timer for each window/key combination, as is done in the > {{ReduceFnRunner}}. For this we have to know all states a user can possibly > use, which we can get from the {{DoFn}} signature. -- This message was sent by Atlassian JIRA (v6.3.15#6346)