Re: Apache Flink and serious streaming stateful processing

Posted by Ufuk Celebi on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Apache-Flink-and-serious-streaming-stateful-processing-tp1865p1868.html


On 30 Jun 2015, at 14:23, Gyula Fóra <[hidden email]> wrote:
> 2. We have support for stateful processing in Flink in many ways you have described in your question. Unfortunately the docs are down currently but you should check out the 'Stateful processing' section in the 0.10 docs (once its back online). We practically support an OperatorState interface which let's you keep partitioned state by some key and access it from runtime operators. The states declared using these interfaces are checkpointed and will be restored on failure. Currently all the states are stored in-memory but we are planning to extend it to allow writing state updates to external systems.

http://flink.apache.org/docs/master/apis/streaming_guide.html#stateful-computation