We are evaluating a use-case where there will be 100s of events stream coming
in per second and we want to run some fixed set of pattern matching rules on
them And I use relaxed contiguity rules as described in the documentation.
for example :
/a pattern sequence "a b+ c" on the stream of "a", "b1", "d1", "b2", "d2",
"b3" "c" will have results as -- {a b1 c}, {a b1 b2 c}, {a b1 b2 b3 c}, {a
b2 c}, {a b2 b3 c}, {a b3 c}
and I specify time window to be 60 mins using within() clause for this
pattern.
/
Does this mean that the events which don't match i.e. "d2" won't be stored
in state at all ? does the CEP store only matching events in the state for
60 minutes ?This question is important to estimate the state backend size required for the usecase and to make sure that the application doesn't go out of memory due to ever increasing state. -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
