Re: Add more capacity to existing gulsterfs replicate

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Hi,

please see; https://docs.gluster.org/en/latest/Administrator-Guide/Managing-Volumes/

Gluster offers online expansion of the volume you can add bricks and/or nodes without taking mariadb offline if you want.

just use the; gluster volume add-brick [vol] [bricks] (bricks must be added according your replication count, in your case 2)
or use; gluster volume replace-brick [vol] [brick] to replace a single brick

Best Olaf

Op do 24 dec. 2020 om 23:35 schreef Bambang Sumitra <bambang.sumitra@xxxxxxxxx>:
Hi,

I have small datawarehouse using mariadb columnstore setup as 2 instance server with glusterfs as storage backend, i follow setup from this guide https://mariadb.com/kb/en/installing-and-configuring-a-multi-server-columnstore-system-11x

Now our server almost running out of space, i have attached new disk to both server and plan to add more storage capacity to the glusterfs volume and remove old brick (if possible)

Questions :
Can i do this step :
1. stop mariadb
2. stop glusterfs
3. mount new disk to /mnt/newdisk  
4. copy data from old brick to to /mnt/newdisk
5. unmount brick
6. mount new disk to /usr/local/mariadb/columnstore/gluster (existing glusterfs mount)

or is there any easy and better way to add capacity? i dont mine to keep or remove old brick

Thank you,

command output from host 10.1.1.60
root@mDWDB01:~# gluster volume status
Status of volume: dbroot1
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick 10.1.1.60:/usr/local/mariadb/columnst
ore/gluster/brick1                          49152     0          Y       1541
Brick 10.1.1.61:/usr/local/mariadb/columnst
ore/gluster/brick1                          49152     0          Y       1499
Self-heal Daemon on localhost               N/A       N/A        Y       1425
Self-heal Daemon on 10.1.1.61               N/A       N/A        Y       1367

Task Status of Volume dbroot1
------------------------------------------------------------------------------
There are no active volume tasks

Status of volume: dbroot2
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick 10.1.1.60:/usr/local/mariadb/columnst
ore/gluster/brick2                          49153     0          Y       1550
Brick 10.1.1.61:/usr/local/mariadb/columnst
ore/gluster/brick2                          49153     0          Y       1508
Self-heal Daemon on localhost               N/A       N/A        Y       1425
Self-heal Daemon on 10.1.1.61               N/A       N/A        Y       1367

Task Status of Volume dbroot2
------------------------------------------------------------------------------
There are no active volume tasks

mis@mDWDB01:~$ sudo gluster volume info
[sudo] password for mis:

Volume Name: dbroot1
Type: Replicate
Volume ID: 22814201-3fae-4904-b0b7-d6e1716365ec
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: 10.1.1.60:/usr/local/mariadb/columnstore/gluster/brick1
Brick2: 10.1.1.61:/usr/local/mariadb/columnstore/gluster/brick1
Options Reconfigured:
performance.client-io-threads: off
nfs.disable: on
transport.address-family: inet

Volume Name: dbroot2
Type: Replicate
Volume ID: 6443b073-754d-440b-89e9-49c085114f46
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: 10.1.1.60:/usr/local/mariadb/columnstore/gluster/brick2
Brick2: 10.1.1.61:/usr/local/mariadb/columnstore/gluster/brick2
Options Reconfigured:
performance.client-io-threads: off
nfs.disable: on
transport.address-family: inet

mis@mDWDB01:~$ mount |grep column
/dev/sdb1 on /usr/local/mariadb/columnstore/gluster type xfs (rw,relatime,attr2,inode64,noquota)
10.1.1.60:/dbroot2 on /usr/local/mariadb/columnstore/data2 type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)


command output from host 10.1.1.61
mis@mDWUM01:~$ sudo gluster volume info
[sudo] password for mis:

Volume Name: dbroot1
Type: Replicate
Volume ID: 22814201-3fae-4904-b0b7-d6e1716365ec
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: 10.1.1.60:/usr/local/mariadb/columnstore/gluster/brick1
Brick2: 10.1.1.61:/usr/local/mariadb/columnstore/gluster/brick1
Options Reconfigured:
performance.client-io-threads: off
nfs.disable: on
transport.address-family: inet

Volume Name: dbroot2
Type: Replicate
Volume ID: 6443b073-754d-440b-89e9-49c085114f46
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: 10.1.1.60:/usr/local/mariadb/columnstore/gluster/brick2
Brick2: 10.1.1.61:/usr/local/mariadb/columnstore/gluster/brick2
Options Reconfigured:
performance.client-io-threads: off
nfs.disable: on
transport.address-family: inet


mis@mDWUM01:~$ sudo gluster volume status
Status of volume: dbroot1
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick 10.1.1.60:/usr/local/mariadb/columnst
ore/gluster/brick1                          49152     0          Y       1541
Brick 10.1.1.61:/usr/local/mariadb/columnst
ore/gluster/brick1                          49152     0          Y       1499
Self-heal Daemon on localhost               N/A       N/A        Y       1367
Self-heal Daemon on mDWDB01                 N/A       N/A        Y       1425

Task Status of Volume dbroot1
------------------------------------------------------------------------------
There are no active volume tasks

Status of volume: dbroot2
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick 10.1.1.60:/usr/local/mariadb/columnst
ore/gluster/brick2                          49153     0          Y       1550
Brick 10.1.1.61:/usr/local/mariadb/columnst
ore/gluster/brick2                          49153     0          Y       1508
Self-heal Daemon on localhost               N/A       N/A        Y       1367
Self-heal Daemon on mDWDB01                 N/A       N/A        Y       1425

Task Status of Volume dbroot2
------------------------------------------------------------------------------
There are no active volume tasks

mis@mDWUM01:~$ mount |grep column
/dev/sdb1 on /usr/local/mariadb/columnstore/gluster type xfs (rw,relatime,attr2,inode64,noquota)
10.1.1.61:/dbroot1 on /usr/local/mariadb/columnstore/data1 type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)
mis@mDWUM01:~$




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