Hey, There is currently an ongoing effort to enable stateful exactly once processing guarantees in Flink Streaming, but there is no currently available version that supports that. We expect this to be available in the next release after 0.7
Regards, Gyula On Sat, Oct 11, 2014 at 6:31 PM, cY <[email protected]> wrote: > And How to make exactly once processing : P > > > ------------------ Original ------------------ > From: "cY";<[email protected]>; > Date: Sun, Oct 12, 2014 00:30 AM > To: "dev"<[email protected]>; > > Subject: a question about Exactly once processing > > > > As we know, with acker storm can process data at least once. If we want it > to process data exactly once, the status of stream must be > saved.Trident(storm's DAG abstract) leaves this problem to users.I would > like to know where flink save the status of stream > : ) Thanks a lot >
