Hi all,
I was wondering if someone could point me to a doc describing the threading model for nova.
I know that we use greenthreads to map multiple threads of execution onto a single native OS thread. And the python GIL results in limitations as well.
According to the description at "https://bugs.launchpad.net/tripleo/+bug/1203906"; for nova-api we potentially fork off multiple instances because it's database-heavy and we don't want to serialize on the database.
If that's the case, why do we only run one instance of nova-conductor on a single OS thread?
And looking at nova-compute on a compute node with no instances running I see 22 OS threads. Where do these come from? Are these related to libvirt? Or are they forked the way that nova-api is?
Any pointers would be appreciated. Chris _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
