Hi, The first answer is "yes", 3 unchained operator will use at least 3 slots, except if these 3 operators are blocking operators and you are running a batch job, the operators will use the same slot one after another.
Regarding to you second question, if you want to start 3 operators with parallelism of 1, Flink will chain these operators and execute them on the same slot. But if you disabled chaining, they do need 3 slots. Best, Kurt On Sat, Feb 11, 2017 at 2:35 AM, bwong247 <bw...@247-inc.com> wrote: > Hi Kurt, > > Thanks for the reply. > > Does this mean that if my job has 3 operators (not chained), it will use at > least 3 slots? I thought parallelism was task based. You can define it at > an operator level, but that only means that the tasks for that operator > are > distributed across that many slots. Shouldn't I be able to start the 3 > operator job with a parallelism of 1 where all the operators run on the > same > single slot? > > Regards, > Bernard > > > > -- > View this message in context: http://apache-flink-user- > mailing-list-archive.2336050.n4.nabble.com/parallelism-and- > slots-allocated-tp11534p11578.html > Sent from the Apache Flink User Mailing List archive. mailing list archive > at Nabble.com. >
