observer.log.wf 的日志生成的优点多，且占用空间比较大。如何定期清理或者通过OCP后台配置集群参数清理。log目录的文件占用空间很大
[root@observer02 oceanbase]# du -sh ./*
532K ./admin
4.0K ./audit
1.3G ./bin
841M ./etc
246G ./log
8.0K ./run
0 ./store
[root@observer02 oceanbase]# pwd
/home/admin/oceanbase
[root@observer02 oceanbase]#