Hi John, No. It is not driven by number of topics or partitions. This is a number you can configure while setting the bolt into the topology builder.
Here is useful link to clarify more : http://storm.apache.org/documentation/Understanding-the-parallelism-of-a-Storm-topology.html On Tue, Jan 12, 2016 at 3:00 PM, John Yost <[email protected]> wrote: > Hi Everyone, > > Is the number of KafkaBolt executors driven by number of topics X number > of partitions? For example, if I have two topics, each of which has ten > partitions, does 20 KafkaBolt executors make sense? Just trying to figure > out the optimal parallelism. > > Any insights much appreciated--thanks! > > --John >
