FastDFS Tracker add and delete nodes and Storage

1.fastdfs seven states

# FDFS_STORAGE_STATUS：INIT      :初始化，尚未得到同步已有数据的源服务器
# FDFS_STORAGE_STATUS：WAIT_SYNC :等待同步，已得到同步已有数据的源服务器
# FDFS_STORAGE_STATUS：SYNCING   :同步中
# FDFS_STORAGE_STATUS：DELETED   :已删除，该服务器从本组中摘除
# FDFS_STORAGE_STATUS：OFFLINE   :离线
# FDFS_STORAGE_STATUS：ONLINE    :在线，尚不能提供服务
# FDFS_STORAGE_STATUS：ACTIVE    :在线，可以提供服务

 2. The normal status must be ACTIVE

[root@tracker02 ~]# fdfs_monitor /etc/fdfs/client.conf | grep ACTIVE
        ip_addr = 10.1.8.45  ACTIVE
        ip_addr = 10.1.8.46  ACTIVE
        ip_addr = 10.1.8.54  ACTIVE
        ip_addr = 10.1.8.55  ACTIVE

 

3. Increase Storage node (through configuration, automatically added)

# 安装Storage并配置mod_fastdfs.conf及storage.conf，设置fdfs_storaged及nginx自启动
vim /etc/fdfs/storage.conf
tracker_server=10.1.8.43:22122
tracker_server=10.1.8.44:22122

vim /etc/fdfs/mod_fastdfs.conf
tracker_server=10.1.8.43:22122
tracker_server=10.1.8.44:22122
......
[group1]
group_name=group1
storage_server_port=23000
store_path_count=1
store_path0=/data/fastdfs/data

# 启动新加的storage节点（会自动同步相同group的内容）
/etc/init.d/fdfs_storage start

# 执行fdfs_monitor /etc/fdfs/client.conf查看集群同步情况（会看到新增的storage节点）
fdfs_monitor /etc/fdfs/client.conf

 4. Remove the node rejoins after Storage and remove (delete by fdfs_monitor)

# 停止某个storage节点
/etc/init.d/fdfs_storage stop

fdfs_monitor /etc/fdfs/client.conf delete group1 10.1.8.x

# 查看集群情况 fdfs_monitor /etc/fdfs/client.conf 可以到对应的storage节点状态为DELETED
fdfs_monitor /etc/fdfs/client.conf

 The storage node rejoining

# 启动被删除的storage节点，查看集群状态，一开始会是 OFFILINE状态
fdfs_monitor /etc/fdfs/client.conf

# 过一会儿再查看集群状态，显示为ACTIVE状态
fdfs_monitor /etc/fdfs/client.conf

 6. Add node Tracker

# 在所有storage节点的storage.conf, mod_fastdfs.conf 中配置多条tracker_server记录
tracker_server=10.2.x.1:22122
tracker_server=10.2.x.2:22122

# 在client.conf中也配置多条tracker_server记录
执行 fdfs_monitor /etc/fdfs/client.conf 查看集群情况，可以看到tracker_serve_count变为2
另外可以指定tracker，进行集群监控  fdfs_monitor /etc/fdfs/client.conf -h 10.2.x.1 list

 7. Delete Tracker node

去掉配置文件中不需要的tracker_server的记录，停止对应服务器上的tracker进程

8.storage not sync

# 从集群中删除storage
fdfs_monitor /etc/fdfs/client.conf delete group1 10.1.8.101

# 删除数据文件夹
rm -rf /home/storage1/fastdfs/data

# 重启storage
fdfs_storaged /etc/fdfs/storage.conf

# 重新查状态
fdfs_monitor /etc/fdfs/client.con