cgroup在ceph中的应用（4）

1. 节点cpu和内存节点查看
   

2. 准备配置文件
   编辑/etc/cgconfig.conf
   注意mon和osd部分根据实际情况进行增加
   以下为配置文件
   mount {
   cpu = /sys/fs/cgroup/cpu;
   cpuacct = /sys/fs/cgroup/cpuacct;
   cpuset = /sys/fs/cgroup/cpu;
   devices = /sys/fs/cgroup/devices;
   memory = /sys/fs/cgroup/memory;
   freezer = /sys/fs/cgroup/freezer;
   }
   group mon {
   perm {

   task {
       uid = root;
       gid = root;
   }
   admin {
       uid = root;
       gid = root;
   }
   

   }
   cpu {

   cpuset.cpus = 0;
   cpuset.mems = 0;
   

   }
   memory {

   memory.limit_in_bytes = 2g;
   memory.memsw.limit_in_bytes = 3g;
   

   memory.soft_limit_in_bytes = 1g;
   memory.swappiness = 0;
   memory.oom_control = 1;

   memory.failcnt = 1;
   

   }
   }
   group osd0 {
   perm {

   task {
       uid = root;
       gid = root;
   }
   admin {
       uid = root;
       gid = root;
   }
   

   }
   cpu {

   cpuset.cpus = 1;   #绑定到指定的cpu 
   cpuset.mems = 0,1;
   

   }
   memory {

   memory.limit_in_bytes = 2g;  #物理内存限制为2G
   memory.memsw.limit_in_bytes = 3g;  #swap虚拟内存限制为3G
   

   memory.soft_limit_in_bytes = 1g; #当物理内存成果1G将触发内存回收
   memory.swappiness = 0; #优先使用物理内存
   memory.oom_control = 1; #当内存到达上限，不关闭进程，只将对应进程进入sleep状态

   memory.failcnt = 1;    #报告当内存到达memory.limit_in_bytes次数
   

   }
   }

3. 修改服务配置文件
   osd服务配置
   修改/etc/init/ceph-osd.conf配置如下
   

Mon服务配置
修改/etc/init/ceph-mon.conf配置如下