[Survey] How many people use Flink with AWS Kinesis sink

2017-08-20 Thread Bowen Li
Hi guys, We want to have a more accurate idea of how many people are writing Flink's computation result to AWS Kinesis, and how many people had successful Flink deployment against Kinesis? The reason I ask for the survey is because we have been trying to make our Flink jobs and Kinesis sin

Re: Memory Issue

2017-08-20 Thread Jörn Franke
One would need to look at your code and possible on some heap statistics. Maybe something wrong happens when you cache them (do you use a 3rd party library or your own implementation?). Do you use a stable version of your protobuf library (not necessarily the most recent). You also may want to l

Re:Re: Re: Just do a survey, how many people give up the storm and turn to Flink ?

2017-08-20 Thread mingleizhang
Thanks, Renjie. Same here. minglei At 2017-08-21 11:19:48, "Renjie Liu" wrote: We are running both systems. Old existing systems are still running on storm and new jobs are all running on flink. On Mon, Aug 21, 2017 at 3:06 AM kaniska Mandal wrote: Storm supports 'exactly once' - ht

Memory Issue

2017-08-20 Thread Govindarajan Srinivasaraghavan
Hi, I have a pipeline running on flink which ingests around 6k messages per second. Each message is around 1kb and it passes through various stages like filter, 5 sec tumbling window per key etc.. and finally flatmap to computation before sending it to kafka sink. The data is first ingested as pro

Re: Re: Just do a survey, how many people give up the storm and turn to Flink ?

2017-08-20 Thread Renjie Liu
We are running both systems. Old existing systems are still running on storm and new jobs are all running on flink. On Mon, Aug 21, 2017 at 3:06 AM kaniska Mandal wrote: > Storm supports 'exactly once' - > http://storm.apache.org/releases/current/Trident-tutorial.html > > Storm supports 'statefu

Flink HA with Kubernetes, without Zookeeper

2017-08-20 Thread Hao Sun
Hi, I am new to Flink and trying to bring up a Flink cluster on top of Kubernetes. For HA setup, with kubernetes, I think I just need one job manager and do not need Zookeeper? I will store all states to S3 buckets. So in case of failure, kubernetes can just bring up a new job manager without losi

Re: [ANNOUNCE] Flink Forward Berlin (11-13 Sep 2017) Call for Submissions is open now

2017-08-20 Thread Robert Metzger
Dear Flink Community, I'd like to quickly bring your attention to Flink Forward Berlin again. The conference is happening in Berlin, Germany from September 11-13. There's a pretty impressive list of talks, including - keynotes from Alibaba, data Artisans, ING -

Re: Re: Just do a survey, how many people give up the storm and turn to Flink ?

2017-08-20 Thread kaniska Mandal
Storm supports 'exactly once' - http://storm.apache.org/releases/current/Trident-tutorial.html Storm supports 'stateful processing' - http://storm.apache.org/releases/2.0.0-SNAPSHOT/State-checkpointing.html Storm is blazing fast - when its properly configured to use distributed (via some client l

Re:Re: Just do a survey, how many people give up the storm and turn to Flink ?

2017-08-20 Thread Niels Basjes
If you combine Storm with Redis for managing state you still do not have "exactly once" when a failure of a processing node occurs. With Flink you do have that. Niels On 19 Aug 2017 12:00, "mingleizhang" <18717838...@163.com> wrote: > Thanks Niels for your answer. Yes, storm does not support sta