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Posted to user@storm.apache.org by Kashyap Mhaisekar <ka...@gmail.com> on 2015/10/02 04:59:57 UTC

Storm Parallelism Best Practices

Hi,
Is there some thumb rules and guidelines to define how many parallelism
hint I can define for a bolt? I mean, how much is it dependent on the no.
of CPU, Memory allocated and number of boxes.

If I want to define a bolt to have parallelism hint of say 1024 or say
65334, will it be detrimental to the topology (assume I have the infra
available) in terms of performance or failover etc?

Regards,
Kashyap