1、改主机名步骤

1.1 停服务

停止所有节点的hms服务：

systemctl stop hms
systemctl stop asm_pms
systemctl stop firemand
systemctl stop zmonagentd

停止监控节点icemand服务：

systemctl stop iceman

1.2 计算节点配置文件修改

/opt/zdata/compute/conf/hostname.conf

1.3 备份脚本

上传备份脚本：
脚本1：

#!/opt/zdata/storage/python/bin/python
import sys
from etcd_service import  EtcdService
def export_etcd_data():
    ef=EtcdService()
    list_all_key = ef.listallkey('/')
    f=open('etcd_data.txt','w')
    for one_key in list_all_key:
        f.write(one_key.key+'=====')
        f.write(one_key.value+'\n')
    f.close()
    print 'export conf to etcd_data.txt succeed'

def import_etcd_data():
    ef=EtcdService()
    f=open('etcd_data.txt','r')
    line_list = f.readlines()
    for line_one in line_list:
        key,value = line_one.rstrip('\n').split('=====')
        ef.set(key,value)
    f.close()
    print 'import succeed'
if __name__ == "__main__":
    if len(sys.argv) == 2 and sys.argv[1] == 'export':
        export_etcd_data()
    elif len(sys.argv) == 2 and sys.argv[1] == 'import':
        import_etcd_data()
    else:
        print 'Usage:/opt/zdata/storage/python/bin/python etcd_backup.pyc <export|import>'     

脚本2：

[iotapp@cell06 tmp]$ cat etcd_backup.py
#!/opt/zdata/storage/python/bin/python
import sys
from etcd_service import  EtcdService
def export_etcd_data():
    ef=EtcdService()
    list_all_key = ef.listallkey('/')
    f=open('etcd_data.txt','w')
    for one_key in list_all_key:
        f.write(one_key.key+'=====')
        f.write(one_key.value+'\n')
    f.close()
    print 'export conf to etcd_data.txt succeed'

def import_etcd_data():
    ef=EtcdService()
    f=open('etcd_data.txt','r')
    line_list = f.readlines()
    for line_one in line_list:
        key,value = line_one.rstrip('\n').split('=====')
        ef.set(key,value,False)
    f.close()
    print 'import succeed'
if __name__ == "__main__":
    if len(sys.argv) == 2 and sys.argv[1] == 'export':
        export_etcd_data()
    elif len(sys.argv) == 2 and sys.argv[1] == 'import':
        import_etcd_data()
    else:
        print 'Usage:/opt/zdata/storage/python/bin/python etcd_backup.pyc <export|import>'
[iotapp@cell06 tmp]$

1.4 授权

[iotapp@cell06 ~]$ chmod a+x /tmp/etcd_backup.py

1.5 备份etcd

[iotapp@cell06 tmp]$ ./etcd_backup.py export
export conf to etcd_data.txt succeed
[iotapp@cell06 tmp]$ cp etcd_data.txt etcd_data.txt.bak

1.6 替换IP

Vi替换etcd备份文件的IP地址

1.7 查看etcd

etcdctl --username root:root123 ls /

1.8 清空etcd数据

etcdctl -username root:root123 rm /

1.9 导入新etcd

./etcd_backup.py import

1.10 重启服务

systemctl restart zmonagentd
systemctl restart asm_pms
systemctl restart asm_ods
systemctl restart hms
systemctl restart node_exporter
systemctl restart rce_agent
systemctl restart firemand

1.11 Mysql表

监控节点：
根据ip_addr修改object_name

select * from zMon.S_OBJ;

1.12 启动服务

启动监控节点icemand服务