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On 03/29/2018 02:13 AM, Belmiro Moreira wrote:
> Some lessons so far...
> - Scale keystone accordingly when enabling placement.

Speaking of which; I suppose I have the same question for keystone 
(currently running under httpd also). I'm currently using threads=1, 
based on this (IIRC):

https://bugs.launchpad.net/puppet-keystone/+bug/1602530

but I'm not sure if that's valid?

Between placement and ceilometer feeding gnocchi, keystone is kept very 
busy.

Recommendations for processes/threads for keystone? And any other tuning 
hints... ?

Thanks!

     ~iain