In Nifi my active thread count on one of our clusters won't go above 30. How can I increase the number of Active Threads?

[#1]

In Nifi my active thread count on one of our clusters won't go above 30. How can I increase the number of Active Threads?

I have two clusters, that SEEM to be configured the same. On one the Active Thread count in Nifi won't go above 30. In the other we've seen as many as 70 Active Threads. Memory is the same in each cluster, but one cluster has more cores.

Is this a setting or a function of available resources (possibly cores)?

[#2]

OK Answer part of my own question

In the Nifi interface NOT AMBARI configs....

Controller Settings;

Maximum Event Driven Thread Count default: 10 - pushed up to 36

Maximum Timer Driven Thread Count default 5 - pushed up to 15

Running new flows. Will report how this works.

[#3]

And probably should have found this earlier

https://community.hortonworks.com/questions/178140/how-to-configure-nifi-to-maximize-the-usage-of-sy...