利用cgroup限制instance磁盘io资源使用

1、安装libcgroup软件包；

[[email protected] ~]# yum install libcgroup  Loaded plugins: product-id, subscription-manager  This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.  epel                                                                                                              | 3.0 kB     00:00  epel/primary_db                                                                                                   | 7.9 MB     00:00  rhel-HighAvailability                                                                                             | 3.9 kB     00:00  rhel-HighAvailability/primary_db                                                                                  |  43 kB     00:00  rhel-LoadBalancer                                                                                                 | 3.9 kB     00:00  rhel-LoadBalancer/primary_db                                                                                      | 7.0 kB     00:00  rhel-ResilientStorage                                                                                             | 3.9 kB     00:00  rhel-ResilientStorage/primary_db                                                                                  |  47 kB     00:00  rhel-ScalableFileSystem                                                                                           | 3.9 kB     00:00  rhel-ScalableFileSystem/primary_db                                                                                | 6.8 kB     00:00  rhel-Server                                                                                                       | 3.9 kB     00:00  rhel-Server/primary_db                                                                                            | 3.1 MB     00:00  rhel-dvd                                                                                                          | 3.9 kB     00:00  rhel-dvd/primary_db                                                                                               | 3.1 MB     00:00  Setting up Install Process  Package libcgroup-0.40.rc1-5.el6.x86_64 already installed and latest version  Nothing to do  

2、开启服务；

[[email protected] ~]# service cgconfig restart  Stopping cgconfig service:                                 [  OK  ]  Starting cgconfig service:                                 [  OK  ]  [[email protected] ~]# chkconfig cgconfig on    [[email protected] ~]# service cgred restart  Stopping CGroup Rules Engine Daemon...                     [  OK  ]  Starting CGroup Rules Engine Daemon:                       [  OK  ]  [[email protected] ~]# chkconfig cgred on  

3、修改配置文件

[[email protected] ~]# cat /etc/cgconfig.conf  #  #  Copyright IBM Corporation. 2007  #  #  Authors:        Balbir Singh <[email protected]>  #  This program is free software; you can redistribute it and/or modify it  #  under the terms of version 2.1 of the GNU Lesser General Public License  #  as published by the Free Software Foundation.  #  #  This program is distributed in the hope that it would be useful, but  #  WITHOUT ANY WARRANTY; without even the implied warranty of  #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  #  # See man cgconfig.conf for further details.  #  # By default, mount all controllers to /cgroup/<controller>    mount {  cpuset        = /cgroup/cpuset;  cpu        = /cgroup/cpu;  cpuacct        = /cgroup/cpuacct;  memory        = /cgroup/memory;  devices        = /cgroup/devices;  freezer        = /cgroup/freezer;  net_cls        = /cgroup/net_cls;  blkio        = /cgroup/blkio;  }    group bio-181 {          blkio {                  blkio.throttle.write_iops_device="";                  blkio.throttle.read_iops_device="";                  blkio.throttle.write_bps_device="252:0 209715200";                  blkio.throttle.read_bps_device="252:0 209715200";                  blkio.reset_stats="";                  blkio.weight="500";                  blkio.weight_device="";          }  }      [[email protected] ~]# cat /etc/cgrules.conf  # /etc/cgrules.conf  #The format of this file is described in cgrules.conf(5)  #manual page.  #  # Example:  #<user>                <controllers>        <destination>  #@student        cpu,memory        usergroup/student/  #peter                cpu                test1/  #%                memory                test2/  # End of file  *               blkio           bio-181/  

4、重启服务

[[email protected] ~]# /etc/init.d/cgconfig restart  Stopping cgconfig service:                                 [  OK  ]  Starting cgconfig service:                                 [  OK  ]  [[email protected] ~]# /etc/init.d/cgred restart  Stopping CGroup Rules Engine Daemon...                     [  OK  ]  Starting CGroup Rules Engine Daemon:                       [  OK  ]  

原文出处：51cto -> http://blog.51cto.com/coolsky/2155397?source=dra