e9857d616d
This patch is part of the docs migration for Cinder. It is more or less a drag and drop of the docs from openstack-manuals admin-guide directory. I needed to change some syntax to work with Cinder's more stringent doc build. Note that the purpose of this patch is just to get the documentation back to an accessible location. Later patches will clean up the organization and content. Change-Id: Ib3f9255e0f9f2ff42a0ee4126607ff319a3d901e
1.4 KiB
Increase Block Storage API service throughput
By default, the Block Storage API service runs in one process. This limits the number of API requests that the Block Storage service can process at any given time. In a production environment, you should increase the Block Storage API throughput by allowing the Block Storage API service to run in as many processes as the machine capacity allows.
Note
The Block Storage API service is named
openstack-cinder-api on the following distributions:
CentOS, Fedora, openSUSE, Red Hat Enterprise Linux, and SUSE Linux
Enterprise. In Ubuntu and Debian distributions, the Block Storage API
service is named cinder-api.
To do so, use the Block Storage API service option
osapi_volume_workers. This option allows you to specify the
number of API service workers (or OS processes) to launch for the Block
Storage API service.
To configure this option, open the
/etc/cinder/cinder.conf configuration file and set the
osapi_volume_workers configuration key to the number of CPU
cores/threads on a machine.
On distributions that include openstack-config, you can
configure this by running the following command instead:
# openstack-config --set /etc/cinder/cinder.conf \
DEFAULT osapi_volume_workers CORESReplace CORES with the number of CPU cores/threads on a
machine.