mirror of
https://github.com/ceph/ceph
synced 2024-12-19 01:46:00 +00:00
80 lines
3.6 KiB
ReStructuredText
80 lines
3.6 KiB
ReStructuredText
=====================
|
|
Operating a Cluster
|
|
=====================
|
|
|
|
The ``ceph`` process provides functionality to **start**, **restart**, and
|
|
**stop** your Ceph cluster. Each time you execute ``ceph``, you must specify at
|
|
least one option and one command. You may also specify a daemon type or a daemon
|
|
instance. For most newer Debian/Ubuntu distributions, you may use the following
|
|
syntax::
|
|
|
|
sudo service ceph [options] [commands] [daemons]
|
|
|
|
For older distributions, you may wish to use the ``/etc/init.d/ceph`` path::
|
|
|
|
sudo /etc/init.d/ceph [options] [commands] [daemons]
|
|
|
|
The ``ceph`` options include:
|
|
|
|
+-----------------+----------+-------------------------------------------------+
|
|
| Option | Shortcut | Description |
|
|
+=================+==========+=================================================+
|
|
| ``--verbose`` | ``-v`` | Use verbose logging. |
|
|
+-----------------+----------+-------------------------------------------------+
|
|
| ``--valgrind`` | ``N/A`` | (Developers only) Use `Valgrind`_ debugging. |
|
|
+-----------------+----------+-------------------------------------------------+
|
|
| ``--allhosts`` | ``-a`` | Execute on all hosts in ``ceph.conf.`` |
|
|
| | | Otherwise, it only executes on ``localhost``. |
|
|
+-----------------+----------+-------------------------------------------------+
|
|
| ``--restart`` | ``N/A`` | Automatically restart daemon if it core dumps. |
|
|
+-----------------+----------+-------------------------------------------------+
|
|
| ``--norestart`` | ``N/A`` | Don't restart a daemon if it core dumps. |
|
|
+-----------------+----------+-------------------------------------------------+
|
|
| ``--conf`` | ``-c`` | Use an alternate configuration file. |
|
|
+-----------------+----------+-------------------------------------------------+
|
|
|
|
The ``ceph`` commands include:
|
|
|
|
+------------------+------------------------------------------------------------+
|
|
| Command | Description |
|
|
+==================+============================================================+
|
|
| ``start`` | Start the daemon(s). |
|
|
+------------------+------------------------------------------------------------+
|
|
| ``stop`` | Stop the daemon(s). |
|
|
+------------------+------------------------------------------------------------+
|
|
| ``forcestop`` | Force the daemon(s) to stop. Same as ``kill -9`` |
|
|
+------------------+------------------------------------------------------------+
|
|
| ``killall`` | Kill all daemons of a particular type. |
|
|
+------------------+------------------------------------------------------------+
|
|
| ``cleanlogs`` | Cleans out the log directory. |
|
|
+------------------+------------------------------------------------------------+
|
|
| ``cleanalllogs`` | Cleans out **everything** in the log directory. |
|
|
+------------------+------------------------------------------------------------+
|
|
|
|
The ``ceph`` daemons include the daemon types:
|
|
|
|
- ``mon``
|
|
- ``osd``
|
|
- ``mds``
|
|
|
|
The ``ceph`` daemons may also specify a specific instance::
|
|
|
|
sudo /etc/init.d/ceph -a start osd.0
|
|
|
|
Where ``osd.0`` is the first OSD in the cluster.
|
|
|
|
.. _Valgrind: http://www.valgrind.org/
|
|
|
|
|
|
.. toctree::
|
|
:hidden:
|
|
|
|
start-cluster
|
|
Check Cluster Health <check-cluster-health>
|
|
stop-cluster
|
|
debug
|
|
|
|
See `Operations`_ for more detailed information.
|
|
|
|
.. _Operations: ../ops/index.html
|