11.2. Setting Multiple Volume Option
A group configuration file is a file used to define and customize volume options. There are some predefined group configuration files for specific workload patterns like negative lookup cache, virtualization, metadata cache and gluster-block.
The parameters defined in the file can then be applied to a volume as a group, rather than setting one parameter at a time.
Creating a group configuration file
- Create a new file in the
/var/lib/glusterd/groups/directory.#
touch /var/lib/glusterd/groups/filename - Add the parameters and values that you want to set on the volume to the created file as key-value pairs, placing each parameter on a new line:
domain1.key1=value1 domain1.key2=value2 domain2.key3=value3
For example,changelog.changelog=on client.event-threads=6 cluster.brick-multiplex=on
Adding configurations to volumes
Run the following command to apply the configurations in the group file to specific volumes:
# gluster volume set volname group filename
For example,
# gluster volume set volume1 group virt # gluster volume set volume2 group virt # gluster volume set volume3 group dbgroup
Note
The configuration file created should be placed in all the hosts of the trusted storage pool under /var/lib/glusterd/groups/. This can be achieved with the help of gdeploy configuration file.
