Document Referenced in this project
Docker Container
Admin Guide
https://gluster.readthedocs.io/en/latest/Administrator%20Guide/overview/
Official Volume Setup
https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Setting%20Up%20Volumes/
Please execute the following commands one by one in CLI:
docker-compose up -d glusterfs1 glusterfs2 glusters3
echo "Sleep 10 seconds to wait the glusterfs up"
sleep 10
docker-compose exec glusterfs1 gluster peer probe glusterfs2
docker-compose exec glusterfs1 gluster volume create test-volume replica 2 transport tcp glusterfs1:/data/glusterfs/test glusterfs2:/data/glusterfs/test
docker-compose exec glusterfs1 gluster volume start test-volume
docker-compose exec glusterfs1 setfacl -m u:1000:rwx /data/glusterfs/test
docker-compose exec glusterfs2 setfacl -m u:1000:rwx /data/glusterfs/test
docker-compose exec glusterfs1 tail -f /var/log/glusterfs/bricks/data-glusterfs-test.log
In the next section, we will explain the command in the script.
https://gluster.readthedocs.io/en/latest/CLI-Reference/cli-main/
The peer commands are used to manage the Trusted Server Pool (TSP).
| Command | Syntax | Description |
|---|---|---|
| peer probe | peer probe server | Add server to the TSP |
| peer detach | peer detach server | Remove server from the TSP |
| peer status | peer status | Display the status of all nodes in the TSP |
| pool list | pool list | List all nodes in the TSP |
The volume commands are used to setup and manage Gluster volumes.
| Command | Syntax | Description |
|---|---|---|
| volume create | volume create volname [options] bricks | Create a volume called volname using the specified bricks with the configuration specified by options |
| volume start | volume start volname [force] | Start volume volname |
| volume stop | volume stop volname | Stop volume volname |
| volume info | volume info [volname] | Display volume info for volname if provided, else for all volumes on the TSP |
| volume status | volumes status[volname] | Display volume status for volname if provided, else for all volumes on the TSP |
| volume list | volume list | List all volumes in the TSP |
| volume set | volume set volname option value | Set option to value for volname |
| volume get | volume get volname <option,all> | Display the value of option (if specified)for volname , or all options otherwise |
| volume add-brick | volume add-brick brick-1 ... brick-n | Expand volname to include the bricks brick-1 to brick-n |
| volume remove-brick | volume remove-brick brick-1 ... brick-n <start,stop,status,commit,force> | Shrink volname by removing the bricks brick-1 to brick-n . start will trigger a rebalance to migrate data from the removed bricks. stop will stop an ongoing remove-brick operation. force will remove the bricks immediately and any data on them will no longer be accessible from Gluster clients. |
| volume replace-brick | volume replace-brick volname old-brick new-brick | Replace old-brick of volname with new-brick |
| volume delete | volume delete volname | Delete volname |
$> gluster pool list
UUID Hostname State
3c510d0e-bc1d-4bf6-b41b-5bd4632b0d8a glusterfs2 Connected
03075f3a-7e59-42a2-9285-40d241f572a1 localhost Connected
$> gluster peer status
Number of Peers: 1
Hostname: glusterfs2
Uuid: 3c510d0e-bc1d-4bf6-b41b-5bd4632b0d8a
State: Peer in Cluster (Connected)
$> gluster volume status
Status of volume: test-volume
Gluster process TCP Port RDMA Port Online Pid
------------------------------------------------------------------------------
Brick glusterfs1:/data/glusterfs/test 49152 0 Y 166
Brick glusterfs2:/data/glusterfs/test 49152 0 Y 130
Self-heal Daemon on localhost N/A N/A Y 189
Self-heal Daemon on glusterfs2 N/A N/A Y 153
Task Status of Volume test-volume
------------------------------------------------------------------------------
There are no active volume tasks
$> gluster volume list
test-volume
$> gluster volume info test-volume
Volume Name: test-volume
Type: Replicate
Volume ID: 2d9ae199-bb92-4fa4-bb40-5cbbf329f5bd
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: glusterfs1:/data/glusterfs/test
Brick2: glusterfs2:/data/glusterfs/test
Options Reconfigured:
transport.address-family: inet
nfs.disable: on
performance.client-io-threads: off
Refz Doc:
1.Check logs under /var/log/glusterfs/bricks
$> ls
data-glusterfs-test.log
$> cat data-glusterfs-test.log
[2019-02-20 13:50:25.453787] I [MSGID: 139001] [posix-acl.c:269:posix_acl_log_permit_denied] 0-test-volume-access-control:
client: 8bb22e062d10-90-2019/02/20-13:50:25:270692-test-volume-client-0-0-0,
gfid: 00000000-0000-0000-0000-000000000001,
req(uid:1000,gid:1000,perm:3,ngrps:0),
ctx(uid:0,gid:0,in-groups:0,perm:755,updated-fop:LOOKUP, acl:-) [Permission denied]
2.Anaysis
Requested : uid:1000,gid:1000,perm:3
Asked : uid:0,gid:0,in-groups:0,perm:755
$> sudo getfacl /data/glusterfs/test/
getfacl: Removing leading '/' from absolute path names
# file: data/glusterfs/test/
# owner: root
# group: root
user::rwx
group::r-x
other::r-x
3.We need to grant the rw perm to uid:1000,gid:1000
$> sudo setfacl -m u:1000:rwx /data/glusterfs/test
$> sudo setfacl -m u:1000:rwx /data/glusterfs/test
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