openstack/openstack-manuals
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d4d965f9c6
openstack-manuals/doc/user-guide-admin/source/cli_nova_manage_services.rst
venkatamahesh d1808ed9c8 [user-guide-admin] Fix rst markups whereever required 
Implements: blueprint user-guides-reorganised

Change-Id: I147cd09381789a48f361552055e01469746cb398
2015-12-18 09:38:34 +00:00

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Manage Compute services

You can enable and disable Compute services. The following examples disable and enable the nova-compute service.

  1. List the Compute services:

    $ nova service-list
+------------------+----------+----------+---------+-------+----------------------------+-----------------+
| Binary           | Host     | Zone     | Status  | State | Updated_at                 | Disabled Reason |
+------------------+----------+----------+---------+-------+----------------------------+-----------------+
| nova-conductor   | devstack | internal | enabled | up    | 2013-10-16T00:56:08.000000 | None            |
| nova-cert        | devstack | internal | enabled | up    | 2013-10-16T00:56:09.000000 | None            |
| nova-compute     | devstack | nova     | enabled | up    | 2013-10-16T00:56:07.000000 | None            |
| nova-network     | devstack | internal | enabled | up    | 2013-10-16T00:56:06.000000 | None            |
| nova-scheduler   | devstack | internal | enabled | up    | 2013-10-16T00:56:04.000000 | None            |
| nova-consoleauth | devstack | internal | enabled | up    | 2013-10-16T00:56:07.000000 | None            |
+------------------+----------+----------+---------+-------+----------------------------+-----------------+

  2. Disable a nova service:

    $ nova service-disable localhost.localdomain nova-compute --reason 'trial log'
+----------+--------------+----------+-------------------+
| Host     | Binary       | Status   | Disabled Reason   |
+----------+--------------+----------+-------------------+
| devstack | nova-compute | disabled | Trial log         |
+----------+--------------+----------+-------------------+

  3. Check the service list:

    $ nova service-list
+------------------+----------+----------+---------+-------+----------------------------+------------------+
| Binary           | Host     | Zone     | Status   | State | Updated_at                 | Disabled Reason |
+------------------+----------+----------+---------+-------+----------------------------+------------------+
| nova-conductor   | devstack | internal | enabled  | up    | 2013-10-16T00:56:48.000000 | None            |
| nova-cert        | devstack | internal | enabled  | up    | 2013-10-16T00:56:49.000000 | None            |
| nova-compute     | devstack | nova     | disabled | up    | 2013-10-16T00:56:47.000000 | Trial log       |
| nova-network     | devstack | internal | enabled  | up    | 2013-10-16T00:56:51.000000 | None            |
| nova-scheduler   | devstack | internal | enabled  | up    | 2013-10-16T00:56:44.000000 | None            |
| nova-consoleauth | devstack | internal | enabled  | up    | 2013-10-16T00:56:47.000000 | None            |
+------------------+----------+----------+---------+-------+----------------------------+------------------+

  4. Enable the service:

    $ nova service-enable localhost.localdomain nova-compute
+----------+--------------+---------+
| Host     | Binary       | Status  |
+----------+--------------+---------+
| devstack | nova-compute | enabled |
+----------+--------------+---------+

  5. Check the service list:

    $ nova service-list
+------------------+----------+----------+---------+-------+----------------------------+-----------------+
| Binary           | Host     | Zone     | Status  | State | Updated_at                 | Disabled Reason |
+------------------+----------+----------+---------+-------+----------------------------+-----------------+
| nova-conductor   | devstack | internal | enabled | up    | 2013-10-16T00:57:08.000000 | None            |
| nova-cert        | devstack | internal | enabled | up    | 2013-10-16T00:57:09.000000 | None            |
| nova-compute     | devstack | nova     | enabled | up    | 2013-10-16T00:57:07.000000 | None            |
| nova-network     | devstack | internal | enabled | up    | 2013-10-16T00:57:11.000000 | None            |
| nova-scheduler   | devstack | internal | enabled | up    | 2013-10-16T00:57:14.000000 | None            |
| nova-consoleauth | devstack | internal | enabled | up    | 2013-10-16T00:57:07.000000 | None            |
+------------------+----------+----------+---------+-------+----------------------------+-----------------+