mfs mount

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