Flink stream data ordering/sequence

2016-01-29 Thread Sane Lee
Hi all, Do flink have mechanism for dealing with ordered streams? As far as I know , flink attaches timestamps to data items once they are processed. What about the timestamps are already in data items? For example, if some data item is missing from particular window (according to its ordering/seq

Re: Flink stream data ordering/sequence

2016-01-29 Thread Fabian Hueske
Hi Sana, The feature you are looking for is called event time processing in Flink. These blog posts should help you to become familiar with the concepts: 1) Event-Time concepts: http://data-artisans.com/how-apache-flink-enables-new-streaming-applications-part-1/ 2) Windows in Flink: http://flink.