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=================================
Deploying a development cluster
=================================
In order to develop on ceph, a Ceph utility,
*vstart.sh*, allows you to deploy fake local cluster for development purpose.
Usage
=====
It allows to deploy a fake local cluster on your machine for development purpose. It starts rgw, mon, osd and/or mds, or all of them if not specified.
To start your development cluster, type the following::
vstart.sh [OPTIONS]...
In order to stop the cluster, you can type::
./stop.sh
Options
=======
.. option:: -i ip_address
Bind to the specified *ip_address* instead of guessing and resolve from hostname.
.. option:: -k
Keep old configuration files instead of overwritting theses.
.. option:: -l, --localhost
Use localhost instead of hostanme.
.. option:: -m ip[:port]
Specifies monitor *ip* address and *port*.
.. option:: -n, --new
Create a new cluster.
.. option:: -o config
Add *config* to all sections in the ceph configuration.
.. option:: --nodaemon
Use ceph-run as wrapper for mon/osd/mds.
.. option:: --smallmds
Configure mds with small limit cache size.
.. option:: -x
Enable Cephx (on by default).
.. option:: -X
Disable Cephx.
.. option:: -d, --debug
Launch in debug mode
.. option:: --valgrind[_{osd,mds,mon}] 'valgrind_toolname [args...]'
Launch the osd/mds/mon/all the ceph binaries using valgrind with the specified tool and arguments.
.. option:: --bluestore
Use bluestore as the objectstore backend for osds
.. option:: --memstore
Use memstore as the objectstore backend for osds
.. option:: --cache <pool>
Set a cache-tier for the specified pool
Environment variables
=====================
{OSD,MDS,MON,RGW}
Theses environment variables will contains the number of instances of the desired ceph process you want to start.
Example: ::
OSD=3 MON=3 RGW=1 vstart.sh
============================================================
Deploying multiple development clusters on the same machine
============================================================
In order to bring up multiple ceph clusters on the same machine, *mstart.sh* a
small wrapper around the above *vstart* can help.
Usage
=====
To start multiple clusters, you would run mstart for each cluster you would want
to deploy, and it will start monitors, rgws for each cluster on different ports
allowing you to run multiple mons, rgws etc. on the same cluster. Invoke it in
the following way::
mstart.sh <cluster-name> <vstart options>
For eg::
./mstart.sh cluster1 -n -r
For stopping the cluster, you do::
./mstop.sh <cluster-name>
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