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Posted to user@flink.apache.org by 네이버 <k5...@naver.com> on 2018/08/07 23:51:03 UTC

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> On 7 Aug 2018, at 06:51, Timo Walther <tw...@apache.org> wrote:
> 
> Hi Esa,
> 
> the SQL/CEP integration might be part of Flink 1.7. The discussion has just been started again [1].
> 
> Regards,
> Timo
> 
> [1] https://issues.apache.org/jira/browse/FLINK-6935
> 
>> Am 07.08.18 um 15:36 schrieb Esa Heikkinen:
>> There was one good example of pattern query in the paper made by SASE+ language (in attachment).
>>  
>> Could you easily say how to do that FlickCEP with Scala ? Or is it possible ?
>>  
>> That SQL and CEP would also be very interesting, but when it is ready to use ?
>>  
>> BR Esa
>>  
>> From: vino yang <ya...@gmail.com> 
>> Sent: Monday, July 23, 2018 3:00 PM
>> To: Esa Heikkinen <es...@student.tut.fi>
>> Cc: Till Rohrmann <tr...@apache.org>; Chesnay Schepler <ch...@apache.org>; user             <us...@flink.apache.org>
>> Subject: Re: FlinkCEP and scientific papers ?
>>  
>> Hi Esa,
>>  
>> I think the core implementation pattern is still based that paper, there is a package named "nfa"[1] contains the main thought.
>>  
>> The latest CEP module added more features and enhanced the old versio. What's more, there is a FLIP-20 which has been accepted, it described how to integrate with SQL and CEP.[2] 
>>  
>> I think there is no newer paper related to current Flink CEP.
>>  
>> [1]: https://github.com/apache/flink/tree/master/flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa
>> [2]: https://cwiki.apache.org/confluence/display/FLINK/FLIP-20:+Integration+of+SQL+and+CEP
>>  
>> Thanks, vino.
>>  
>>  
>> 2018-07-23 16:05 GMT+08:00 Esa Heikkinen <es...@student.tut.fi>:
>> Hi
>>  
>> Thank you. This was very good paper for me J
>>  
>> How much current FlinkCEP works like this (the paper was written 2008) ?
>>  
>> Are there exist newer papers related to current FlinkCEP ?
>>  
>> BR Esa
>>  
>> From: Till Rohrmann <tr...@apache.org> 
>> Sent: Wednesday, July 18, 2018 9:38 AM
>> To: vino yang <ya...@gmail.com>
>> Cc: Esa Heikkinen <es...@student.tut.fi>; Chesnay Schepler <ch...@apache.org>; user <us...@flink.apache.org>
>> Subject: Re: FlinkCEP and scientific papers ?
>>  
>> You are right Vino,
>>  
>> the initial implementation was based on the above mentioned paper.
>>  
>> Cheers,
>> Till
>>  
>> On Tue, Jul 17, 2018 at 5:34 PM vino yang <ya...@gmail.com> wrote:
>> Hi Esa,
>>  
>> AFAIK, the earlier Flink CEP refers to the Paper 《Efficient Pattern Matching over Event Streams》[1]. Flink absorbed  two major idea from this paper:
>>  
>> 1. NFA-b model on event stream
>> 2. a shared versioned match buffer which is a optimized data structure
>>  
>> To Till and Chesnay:
>>  
>> Did I missed anything when as time goes on and the development of Flink? If yes, please give your additional remarks.
>>  
>> [1]: https://people.cs.umass.edu/~yanlei/publications/sase-sigmod08.pdf
>>  
>> Thanks, vino.
>>  
>> 2018-07-17 22:01 GMT+08:00 Esa Heikkinen <es...@student.tut.fi>:
>> Hi
>>  
>> I don’t know this the correct forum to ask, but are there exist some good scientific papers about FlinkCEP (Complex Event Processing) ?
>>  
>> I know Flink is based to Stratosphere, but how is it FlinkCEP ?
>>  
>> BR Esa
>>  
>>  
>