GlusterFS Tools

UPDATE:
Installation and usage is simplified with the new release of glusterfs-tools, refer this blog for more details.

GlusterFS is an open source, distributed file system capable of scaling to several petabytes (actually, 72 brontobytes!) and handling thousands of clients. GlusterFS clusters together storage building blocks over Infiniband RDMA or TCP/IP interconnect, aggregating disk and memory resources and managing data in a single global namespace. GlusterFS is based on a stackable user space design and can deliver exceptional performance for diverse workloads.

Gluster CLI has limited features to view and filter the volume info. I started a small project to enhance Gluster CLI for personal use. As of now it consists of a tool to list Gluster volumes in tabular format. Other intersesting features includes filtering the output based on name, type, status, bricks etc.

Clone the project(I cloned it to /home/aravinda/sandbox/)

cd /home/aravinda/sandbox
git clone https://github.com/aravindavk/glusterfs-tools.git

Create a shellscript to call gftools /usr/local/bin/gfvolumes

#!/bin/bash
python /home/aravinda/sandbox/glusterfs-tools/gftools/volumes.py "$@"

Make gfvolumes executable

chmod +x /usr/local/bin/gfvolumes

Now we can run sudo gfvolumes to see the list of glusterfs volumes. Type gfvolumes --help for help.

All Volumes

Name Filter

Status Filter

Type Filter

Show Bricks

Additionally it can output filtered details in JSON format.

JSON Format

We can easily import this in our python script.

#!/usr/bin/python
from gftools import volumes
gfvols = volumes.GfVolumes()
ok, vols = gfvols.get(name='^gv[0-9]$', status='down') # Various filters available
if ok:
    # Do action

Note: root permission is required to run gluster command, so run gfvolumes as root(sudo gfvolumes)

Future plans:

Adding more filters
Adding more admin tools
Creating RPM/DEB packages

C & S Welcome.