projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | ============================ |
| 2 | Add/Remove Metadata Server | |
| 3 | ============================ | |
| 4 | ||
| 5 | With ``ceph-deploy``, adding and removing metadata servers is a simple task. You | |
| 6 | just add or remove one or more metadata servers on the command line with one | |
| 7 | command. | |
| 8 | ||
| 7c673cae FG |
9 | See `MDS Config Reference`_ for details on configuring metadata servers. |
| 10 | ||
| 11 | ||
| 12 | Add a Metadata Server | |
| 13 | ===================== | |
| 14 | ||
| 15 | Once you deploy monitors and OSDs you may deploy the metadata server(s). :: | |
| 16 | ||
| 17 | ceph-deploy mds create {host-name}[:{daemon-name}] [{host-name}[:{daemon-name}] ...] | |
| 18 | ||
| 19 | You may specify a daemon instance a name (optional) if you would like to run | |
| 20 | multiple daemons on a single server. | |
| 21 | ||
| 22 | ||
| 23 | Remove a Metadata Server | |
| 24 | ======================== | |
| 25 | ||
| 26 | Coming soon... | |
| 27 | ||
| 28 | .. If you have a metadata server in your cluster that you'd like to remove, you may use | |
| 29 | .. the ``destroy`` option. :: | |
| 30 | ||
| 31 | .. ceph-deploy mds destroy {host-name}[:{daemon-name}] [{host-name}[:{daemon-name}] ...] | |
| 32 | ||
| 33 | .. You may specify a daemon instance a name (optional) if you would like to destroy | |
| 34 | .. a particular daemon that runs on a single server with multiple MDS daemons. | |
| 35 | ||
| 36 | .. .. note:: Ensure that if you remove a metadata server, the remaining metadata | |
| 37 | servers will be able to service requests from CephFS clients. If that is not | |
| 38 | possible, consider adding a metadata server before destroying the metadata | |
| 39 | server you would like to take offline. | |
| 40 | ||
| 41 | ||
| 42 | .. _MDS Config Reference: ../../../cephfs/mds-config-ref |