客户端相关的操作：

 2016-07-27 11:49:02 umount /usr/local/img.happytoo.cn

 2016-07-27 11:49:08 /usr/local/mfs/bin/mfsmount /usr/local/img.happytoo.cn -H 10.0.0.79  -o nonempty


/usr/local/mfs/bin/mfsmount /usr/local/img.happytoo.cn -H 10.0.0.79  -o nonempty



mfs查看文件的份数：

[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfsfileinfo /usr/local/img.happytoo.cn/1407101359362913.jpg

/usr/local/img.happytoo.cn/1407101359362913.jpg:

        chunk 0: 00000000000009B9_00000001 / (id:2489 ver:1)

                copy 1: 10.0.0.105:9422

                copy 2: 10.0.0.109:9422

[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfsfileinfo /usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk 

/usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk:

        chunk 0: 00000000004DA06F_00000001 / (id:5087343 ver:1)

                copy 1: 10.0.0.105:9422

                copy 2: 10.0.0.109:9422

[root@V105_shhl_wei down]# /usr/local/mfs/bin/mfsgetgoal -h /usr/local/img.happytoo.cn/    //获取文件备份信息

/usr/local/img.happytoo.cn/: 2                        //1表示没有备份，只有一个文件，我们这里是2


# 查看设置的goal数

[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfsgetgoal  /usr/local/img.happytoo.cn/

/usr/local/img.happytoo.cn/: 2

You have new mail in /var/spool/mail/root






[root@V105_shhl_wei down]# /usr/local/mfs/bin/mfsdirinfo /usr/local/img.happytoo.cn/   //查看chunk信息

/usr/local/img.happytoo.cn/:

 inodes:                    5596103

  directories:               446545

  files:                    5149558

 chunks:                    5149519

 length:               255759933723

 size:                 478456327168

 realsize:             956912654336



 # /usr/local/mfs/bin/mfssetgoal -r 2 /mnt/data/                   //等段时间之后生效，这样修改之后，文件就实现冗余功能了 -r 递归


[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfscheckfile /usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk mfscheckfile 用来检查指定文件以多少副本来存储

/usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk:

 chunks with 2 copies:            1





mfs 故障模拟维护：

http://www.xuebuyuan.com/1559864.html


 在web见面info选项卡中可以看出，这个矩阵横坐标表示现在已经存在磁盘上的副本数，纵坐标表示你设置的副本数



http://www.bubuko.com/infodetail-1899169.html mfs如何迁移数据之替换存储节点

MFS近期测试遇到故障的总结 http://www.xuebuyuan.com/1559864.html


http://www.bubuko.com/infodetail-1899169.html   迁移chunkserver 配置


http://www.bubuko.com/infodetail-1899169.html


http://www.cnblogs.com/liaojiafa/p/6069872.html