Re: State management in spark-streaming

2015-12-15 Thread Tathagata Das
Well, the trackStateByKey has been renamed to mapWithState in upcoming 1.6.
And regarding the usecase, you can easily implement this with
updateStateByKey.
See
https://github.com/apache/spark/blob/branch-1.5/examples/src/main/scala/org/apache/spark/examples/streaming/StatefulNetworkWordCount.scala

On Thu, Dec 10, 2015 at 7:46 PM, manasdebashiskar <poorinsp...@gmail.com>
wrote:

> Have you taken a look at trackStateBykey in spark streaming (coming in
> spark
> 1.6)
>
>
>
> --
> View this message in context:
> http://apache-spark-user-list.1001560.n3.nabble.com/State-management-in-spark-streaming-tp25608p25681.html
> Sent from the Apache Spark User List mailing list archive at Nabble.com.
>
> -
> To unsubscribe, e-mail: user-unsubscr...@spark.apache.org
> For additional commands, e-mail: user-h...@spark.apache.org
>
>


Re: State management in spark-streaming

2015-12-10 Thread manasdebashiskar
Have you taken a look at trackStateBykey in spark streaming (coming in spark
1.6)



--
View this message in context: 
http://apache-spark-user-list.1001560.n3.nabble.com/State-management-in-spark-streaming-tp25608p25681.html
Sent from the Apache Spark User List mailing list archive at Nabble.com.

-
To unsubscribe, e-mail: user-unsubscr...@spark.apache.org
For additional commands, e-mail: user-h...@spark.apache.org



State management in spark-streaming

2015-12-06 Thread Hafiz Mujadid
Hi,

I have spark streaming with mqtt as my source. There are continuous events
of flame sensors i.e. Fire and no Fire. I want to generate Fire event when
the newly event is for Fire and want to ignore all subsequent event until No
fire event is happened. Similarly If i get No-Fire Event i will ignore all
subsequent No-Fire events and will wait for Fire Events. 

Is it possible to handle this logic in custom receiver? If yes how can we
remember last state i.e. Fire/No-Fire in receiver.


Thanks



--
View this message in context: 
http://apache-spark-user-list.1001560.n3.nabble.com/State-management-in-spark-streaming-tp25608.html
Sent from the Apache Spark User List mailing list archive at Nabble.com.

-
To unsubscribe, e-mail: user-unsubscr...@spark.apache.org
For additional commands, e-mail: user-h...@spark.apache.org