GlusterFS : Add Nodes (Bricks)2020/08/26 |
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Add Nodes (Bricks) to existing Cluster.
For example, Add a Node [node03] to the existing Cluster like follows.
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+----------------------+ | +----------------------+
| [GlusterFS Server#1] |10.0.0.51 | 10.0.0.52| [GlusterFS Server#2] |
| node01.srv.world +----------+----------+ node02.srv.world |
| | | | |
+----------------------+ | +----------------------+
⇑ | ⇑
file1, file3 ... | file2, file4 ...
|
+----------------------+ |
| [GlusterFS Server#3] |10.0.0.53 |
| node03.srv.world +----------+
| |
+----------------------+
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| [1] |
Install GlusterFS to a New Node, refer to here,
and then Create a directory for GlusterFS volume on the same Path with other Nodes.
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| [2] | Add a New Node to existing Cluster on a node. (OK on any existing node) |
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# probe new node root@node01:~# gluster peer probe node03 peer probe: success. # confirm status root@node01:~# gluster peer status Number of Peers: 2 Hostname: node02 Uuid: f2fce535-c10e-41cb-8c9f-c6636ae38eff State: Peer in Cluster (Connected) Hostname: node03 Uuid: 014a1e8f-967d-4709-bac4-ea1de8ef96cb State: Peer in Cluster (Connected) # confirm existing volume root@node01:~# gluster volume info Volume Name: vol_distributed Type: Distribute Volume ID: 8c8f0cb5-1833-4e7f-92b0-7842574bb0e4 Status: Started Snapshot Count: 0 Number of Bricks: 2 Transport-type: tcp Bricks: Brick1: node01:/glusterfs/distributed Brick2: node02:/glusterfs/distributed Options Reconfigured: transport.address-family: inet storage.fips-mode-rchecksum: on nfs.disable: on # add new node root@node01:~# gluster volume add-brick vol_distributed node03:/glusterfs/distributed volume add-brick: success # confirm volume info root@node01:~# gluster volume info Volume Name: vol_distributed Type: Distribute Volume ID: 8c8f0cb5-1833-4e7f-92b0-7842574bb0e4 Status: Started Snapshot Count: 0 Number of Bricks: 3 Transport-type: tcp Bricks: Brick1: node01:/glusterfs/distributed Brick2: node02:/glusterfs/distributed Brick3: node03:/glusterfs/distributed Options Reconfigured: transport.address-family: inet storage.fips-mode-rchecksum: on nfs.disable: on # after adding new node, run rebalance volume root@node01:~# gluster volume rebalance vol_distributed fix-layout start volume rebalance: vol_distributed: success: Rebalance on vol_distributed has been started successfully. Use rebalance status command to check status of the rebalance process. ID: 47914d1c-22b1-4de0-9cd3-7d271ff8db53 # OK if [Status] turns to [completed] root@node01:~# gluster volume status Status of volume: vol_distributed Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------------------------ Brick node01:/glusterfs/distributed 49152 0 Y 2630 Brick node02:/glusterfs/distributed 49152 0 Y 2592 Brick node03:/glusterfs/distributed 49152 0 Y 3427 Task Status of Volume vol_distributed ------------------------------------------------------------------------------ Task : Rebalance ID : 47914d1c-22b1-4de0-9cd3-7d271ff8db53 Status : completed |
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