This is a very nice explanation of parallelism (executors and tasks) in
Storm:

https://storm.apache.org/documentation/Understanding-the-parallelism-of-a-Storm-topology.html


-Matthias



On 04/26/2015 10:51 AM, prasad ch wrote:
> Hi , am not understand the difference of executors and tasks in storm.
> 
> I need to read list of files  very fast , and i need to perform some
> operation on that data in side bolt,
> 
> here how can i read list of files as fast and emit tuples to bolt.
> 
> I tried following cases...........
> 
> initially i tested 10 files each file contain 1000 records at that time
> i used 10 executors  i did logic each tread pick different file.
> this is good when each file having 1000 records while when i do same
> thing with each file having 10000 records it is slow to process ,
> 
> how  can i do , even  in production i need to do  lot of files with more
> number of records ......please help me
> 
> 
> 
> Thanks ! 
> 
> 
> prasad ch!
> 9493653509

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