Bug#659229: prio_callout is not executed (manpage unclear or outdated?)

[Holger Levsen]

package: multipath-tools
version: 0.4.8+git0.761c66f-10

Hi,

thanks for maintaining multipath-tools!

I'm trying to set priorities with prio_callout but I can't make it work. This 
is what I have in /etc/multipath.conf:

devices {
    device {
        vendor                "SUN"
        product               "COMSTAR"
        path_grouping_policy  group_by_prio
        prio_callout          "/sbin/multipath_prio %n"
        no_path_retry         queue
        failback              10
    }
}



$ cat /sbin/multipath_prio 
#!/bin/bash

case $1 in
    sda)
        echo "10"
        ;;
    sdb)
        echo "20"
        ;;
    sdc)
        echo "30"
        ;;
    sdd)
        echo "40"
        ;;
    sde)
        echo "50"
        ;;
esac

exit 0



$ sudo  multipath -v3|grep sda
Feb 09 10:40:53 | sda: not found in pathvec
Feb 09 10:40:53 | sda: mask = 0x1f
Feb 09 10:40:53 | sda: dev_t = 8:0
Feb 09 10:40:53 | sda: size = 104857600
Feb 09 10:40:53 | sda: subsystem = scsi
Feb 09 10:40:53 | sda: vendor = SUN
Feb 09 10:40:53 | sda: product = COMSTAR
Feb 09 10:40:53 | sda: rev = 1.0
Feb 09 10:40:53 | sda: h:b:t:l = 2:0:0:9
Feb 09 10:40:53 | sda: serial =     
Feb 09 10:40:53 | sda: get_state
Feb 09 10:40:53 | sda: path checker = directio (config file default)
Feb 09 10:40:53 | sda: state = running
Feb 09 10:40:53 | sda: state = 3
Feb 09 10:40:53 | sda: prio = const (config file default)
Feb 09 10:40:53 | sda: const prio = 1
Feb 09 10:40:53 | sda: getuid = /lib/udev/scsi_id --whitelisted --
device=/dev/%n (config file default)
Feb 09 10:40:53 | sda: uid = 3600144f0affeaffeaffe000000000001 (callout)
3600144f0affeaffeaffe000000000001 2:0:0:9  sda 8:0   1   undef ready  SUN,COMS


I would expect get prio 10 here ;-)

Also I'm slightly confused about the manpage, are you sure you didnt 
accidentily reopen #644913?

If you need more information, I'd be very happy to provide that.


cheers,
	Holger