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From mingleizhang <18717838...@163.com>
Subject Re:Re: Re: Just do a survey, how many people give up the storm and turn to Flink ?
Date Mon, 21 Aug 2017 03:37:01 GMT
Thanks, Renjie. Same here.


At 2017-08-21 11:19:48, "Renjie Liu" <liurenjie2008@gmail.com> 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 <kaniska.mandal@gmail.com> wrote:

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 like
redisson) and local cache. 

On Sun, Aug 20, 2017 at 11:27 AM, Niels Basjes <niels@basj.es> wrote:

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.


On 19 Aug 2017 12:00, "mingleizhang" <18717838093@163.com> wrote:

Thanks Niels for your answer. Yes, storm does not support stateful processing components.
So, I have to use something like Redis to store it's stateful.

At 2017-08-19 16:57:13, "Niels Basjes" <niels@basj.es> wrote:


The company I work for switched about 2 years ago because of these reasons AT THAT moment!
1) Storm doesn't run on Yarn
2) Storm doesn't support statefull processing components.
3) Storm has a bad Java api.
4) Storm is not fast enough.

Some of these things have changed over the last 2 years. But comparing the two at this moment
would still let me choose Flink.


On 19 Aug 2017 10:28, "mingleizhang" <18717838093@163.com> wrote:

Hi, flink user
     I just want to do a survey as the subject said. How many of you that used to use storm
as your real-time computing framework, but now, turn to Flink instead. And why ? Could you
tell me ? Thank you very much!





Liu, Renjie
Software Engineer, MVAD
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