![重启后 multipathd 不工作](https://linux22.com/image/669736/%E9%87%8D%E5%90%AF%E5%90%8E%20multipathd%20%E4%B8%8D%E5%B7%A5%E4%BD%9C.png)
Multipathd 无法在 CentOS 6.5 x86_64 上运行:
device-mapper-multipath-libs-0.4.9-87.el6.x86_64
device-mapper-multipath-0.4.9-87.el6.x86_64
重新启动多路径服务时出现以下错误:
ux_socket_connect: Connection refused
Stopping multipathd daemon: [FAILED]
Starting multipathd daemon: [ OK ]
[root@localhost ~]# /etc/init.d/multipathd start
Starting multipathd daemon: [ OK ]
[root@localhost ~]# /etc/init.d/multipathd status
multipathd dead but pid file exists
/etc/multipath.conf的内容:
udev_dir /dev
polling_interval 10
path_selector "round-robin 0"
path_grouping_policy multibus
getuid_callout "/lib/udev/scsi_id --replace-whitespace --whitelisted --device=/dev/%n"
prio const
path_checker readsector0
rr_min_io 100
max_fds 8192
rr_weight priorities
failback immediate
no_path_retry fail
user_friendly_names no
}
blacklist {
# wwid 26353900f02796769
devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
# devnode "^hd[a-z]"
devnode "/dev/sda"
}
答案1
在我的计算机上也遇到了同样的问题
# /etc/init.d/multipathd start
Starting multipathd daemon: [ OK ]
# /etc/init.d/multipathd status
multipathd dead but pid file exists
实际上有两个问题
1.dm_round_robin
内核模块未加载
2.device-mapper
软件包太旧,与软件包
glibc
不兼容multipath
分辨率
1. /etc/init.d/multipathd stop
2. rm /var/run/multipat*
3. /sbin/modprob -i dm_round_robin
4.yum update device-mapper
yum update glibc