如何删除复制的 glusterfs 对等点？

Question

我不再需要复制的 glusterfs 存储服务器集群，只需一个即可管理。我如何摆脱其他人？

Answer 1

SSH 进入您希望保留的 glusterfs 机器并执行以下操作：

[siddhartha@glusterfs-01-perf ~]$ sudo gluster peer status

Number of Peers: 1

Hostname: 10.240.0.123
Port: 24007
Uuid: 03747753-a2cc-47dc-8989-62203a7d31cd
State: Peer in Cluster (Connected)

这向我们展示了我们希望摆脱的另一个同行。

要分离它，请尝试：

sudo gluster peer detach 10.240.0.123

你可能会失败：

peer detach: failed: Brick(s) with the peer 10.240.0.123 exist in cluster

我们需要先摆脱砖块：

[siddhartha@glusterfs-01-perf ~]$ sudo gluster volume info

Volume Name: glusterfs
Type: Replicate
Volume ID: 563f8593-4592-430f-9f0b-c9472c12570b
Status: Started
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: 10.240.0.122:/mnt/storage/glusterfs
Brick2: 10.240.0.123:/mnt/storage/glusterfs

要删除 Brick2，请执行以下操作：

[siddhartha@glusterfs-01-perf ~]$ sudo gluster volume remove-brick glusterfs 10.240.0.123:/mnt/storage/glusterfs

这可能会失败：

Removing brick(s) can result in data loss. Do you want to Continue? (y/n) y
volume remove-brick commit force: failed: Removing bricks from replicate configuration is not allowed without reducing replica count explicitly.

我们的复制设置为 2，并且需要显式减少为 1，因此replica 1在前面的命令中添加一个标志：

[siddhartha@glusterfs-01-perf ~]$ sudo gluster volume remove-brick glusterfs replica 1 10.240.0.123:/mnt/storage/glusterfs 
Removing brick(s) can result in data loss. Do you want to Continue? (y/n) y
volume remove-brick commit force: success

这应该可以解决问题：

[siddhartha@glusterfs-01-perf ~]$ sudo gluster volume info glusterfs

Volume Name: glusterfs
Type: Distribute
Volume ID: 563f8593-4592-430f-9f0b-c9472c12570b
Status: Started
Number of Bricks: 1
Transport-type: tcp
Bricks:
Brick1: 10.240.0.122:/mnt/storage/glusterfs

你可以去终止另一台机器。