controller node add a new storage node

注意：

当controller node 做了 rebalance 后，希望 oss 保持最新，则必须：

1. 向所有的storage node 分发最新的 /etc/swift/*.ring.gz 文件
2. 在所有的 storage node 重启 swift-init

step

修改hosts

tail -1 hosts >> /etc/hosts

删除老节点

## remove 
swift-ring-builder object.builder
swift-ring-builder object.builder remove --id=1   
swift-ring-builder container.builder
swift-ring-builder container.builder  remove --id=1
swift-ring-builder account.builder 
swift-ring-builder account.builder remove --id=1   

## check
swift-ring-builder object.builder
swift-ring-builder container.builder
swift-ring-builder account.builder 

## add 
swift-ring-builder object.builder add   --region 1 --zone 1 --ip 192.168.0.127 --port 6200 --device sdb --weight 100
swift-ring-builder container.builder add   --region 1 --zone 1 --ip 192.168.0.127 --port 6201 --device sdb --weight 100
swift-ring-builder account.builder   add --region 1 --zone 1 --ip 192.168.0.127 --port 6202   --device sdb --weight 100 
swift-ring-builder object.builder add   --region 1 --zone 1 --ip 192.168.0.180 --port 6200 --device sdb --weight 100
swift-ring-builder container.builder add   --region 1 --zone 1 --ip 192.168.0.180 --port 6201 --device sdb --weight 100
swift-ring-builder account.builder   add --region 1 --zone 1 --ip 192.168.0.180 --port 6202   --device sdb --weight 100 

## check
swift-ring-builder object.builder
swift-ring-builder container.builder
swift-ring-builder account.builder 

## rebalance
swift-ring-builder object.builder rebalance
swift-ring-builder account.builder rebalance
swift-ring-builder container.builder rebalance

## check
swift-ring-builder object.builder
swift-ring-builder container.builder
swift-ring-builder account.builder

传*.ring.gz文件给其它node

cp /etc/swift/*.ring.gz /tmp/storage-node/swift/

storage node get the ring.gz

scp ubuntu@192.168.0.51:/tmp/storage-node-files/storage-node/ring.gz/  /tmp/storage-node/

cp /tmp/storage-node/ring.gz/* /etc/swift/
chown -R root:swift /etc/swift

On the controller node

service memcached restart
service swift-proxy restart
service memcached status
service swift-proxy status

On the storage nodes, start the Object Storage services:

service rsync stop
service rsync start
service rsync status
swift-init all restart