Re: Back-pressure Status shows OK but records are backed up in kafka

2018-01-07 Thread Ufuk Celebi
Hey Jins, our current back pressure tracking mechanism does not work with Kafka sources. To gather back pressure indicators we sample the main task thread of a subtask. For most tasks, this is the thread that emits records downstream (e.g. if you have a map function) and everything works as

Back-pressure Status shows OK but records are backed up in kafka

2018-01-07 Thread Jins George
I have a Beam Pipeline consuming records from Kafka doing some transformations and writing it to Hbase. I faced an issue in which records were writing to Hbase at a slower rate than the incoming messages to Kafka due to a temporary surge in the incoming traffic. From the flink UI, if I check

Flink as a general reactive application framework

2018-01-07 Thread Atle Prange
Hi, i am exploring the possibility to use Flink as the main framework to drive a (highly reactive) application. I started out with Akka and RxJava, but it seemed to me that Flink in general supports the same features, but is more robust and has more potential. I would also get an excellent runtime