安装好数据库后，运行正常，相互重启就不行了，老是卡在 failed to start 127.0.0.1 grafana
请问如果不用grafana组件，是否可以删除？请问怎么删除？
详细如下：
[root@localhost ~]# obd cluster start demo
Get local repositories ok
Load cluster param plugin ok
Open ssh connection ok
[WARN] OBD-1011: (127.0.0.1) The recommended value of fs.aio-max-nr is 1048576 (Current value: 65536)
[WARN] OBD-1007: (127.0.0.1) The recommended number of open files is 655350 (Current value: 20000)
[WARN] OBD-1007: (127.0.0.1) The recommended number of core file size is unlimited (Current value: 0)
[WARN] OBD-1007: (127.0.0.1) The recommended number of stack size is unlimited (Current value: 8192)
[WARN] OBD-1017: (127.0.0.1) The value of the “vm.max_map_count” must be within [327600, 1310720] (Current value: 65530, Recommended value: 655360)
[WARN] OBD-1017: (127.0.0.1) The value of the “fs.file-max” must be greater than 6573688 (Current value: 3225500, Recommended value: 6573688)
Check before start obagent ok
[WARN] OBD-4521: The config observer_sys_password in obproxy-ce did not take effect, please config it in oceanbase-ce
Check before start prometheus ok
Check before start grafana ok
cluster scenario: express_oltp
Start observer ok
observer program health check ok
Connect to observer 127.0.0.1:2881 ok
obshell start ok
obshell program health check ok
Start obagent ok
obagent program health check ok
start obproxy ok
obproxy program health check ok
Connect to obproxy ok
Start promethues ok
prometheus program health check ok
Start grafana ok
[WARN] failed to start 127.0.0.1 grafana
以下是出错日志
