openstack/openstack-manuals
Code Issues Proposed changes
564dddb50b
openstack-manuals/doc/admin-guide/source/blockstorage-api-throughput.rst
Joseph Robinson 2ce5b11b1a [User Guides] Rename Admin-Guide-Cloud to Admin-Guide 
This patch changes the name of the Admin-Guide from the Cloud
Admin Guide to the Administrator guide. This affects the
filename in the repository, and references to cloud administrators
within the document texts.

1.) Changing instances of 'cloud administrator'
    to 'administrator'.

2.) Change links from '/admin-guide-cloud/' to
    '/admin-guide/' within the Admin Guide.

3.) Adjust .htaccess file.

Change-Id: I7f21a710e922981aa295afc0616de36fd819b523
Implements: blueprint user-guides-reorganised
2016-04-01 19:50:13 +09:00

1.4 KiB
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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 CORES

Replace CORES with the number of CPU cores/threads on a machine.