iSCSI + Multipath + LVM Fail!!

[nitrosito]

Hi

I configure iSCSI with multipath, and LVM volume groups.
When i try restore a QEMU backup on LVM partition (in iSCSI) , the proxmox freezy at 60-80% D:

Syslog:

==> /var/log/syslog <==
Jun 22 10:38:16 punisher multipathd: Jaeger: sdb - directio checker reports path is up
Jun 22 10:38:16 punisher multipathd: 8:16: reinstated
Jun 22 10:38:16 punisher multipathd: Jaeger: remaining active paths: 4
Jun 22 10:38:17 punisher systemd-udevd[14429]: timeout '/sbin/multipath -v0 /dev/dm-5'
Jun 22 10:38:18 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:19 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:20 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:21 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:22 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:23 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:24 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:25 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:26 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:27 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:28 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:29 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:30 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:31 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:32 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:33 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14658]
Jun 22 10:38:33 punisher systemd-udevd[14429]: '/sbin/multipath -v0 /dev/dm-5' [14658] terminated by signal 9 (Killed)
Jun 22 10:39:04 punisher systemd-udevd[14429]: timeout '/sbin/multipath -v0 /dev/dm-5'
Jun 22 10:39:05 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14753]
Jun 22 10:39:06 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14753]
Jun 22 10:39:07 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14753]
Jun 22 10:39:08 punisher systemd-udevd[14429]: '/sbin/multipath -v0 /dev/dm-5' [14753] terminated by signal 9 (Killed)
Jun 22 10:39:39 punisher systemd-udevd[14429]: timeout '/sbin/multipath -v0 /dev/dm-5'
Jun 22 10:39:40 punisher systemd-udevd[14429]: timeout: killing '/sbin/multipath -v0 /dev/dm-5' [14839]
Jun 22 10:39:41 punisher systemd-udevd[14429]: '/sbin/multipath -v0 /dev/dm-5' [14839] terminated by signal 9 (Killed)
Jun 22 10:40:12 punisher systemd-udevd[14429]: timeout '/sbin/multipath -v0 /dev/dm-5'

Looks like multipath DIE when i restore backups.
I have a Dell Powervault MD36xxi

Any have MD36xxi works with proxmox with multipaths?
I try some configs, but same result

Thanks a regards

 

[adamb]

You could easily remove multipath from the equation and test on just a single path. That will atleast tell you if it has anything to do with multipath.

 

[nitrosito]

OMG , same result

I not configure only 1 parth (Message "duplicate path ... use x iftead y" , but for test i know thats no problem)

And proxmox freeze too!!

Jun 23 10:58:26 punisher iscsid: connection4:0 is operational after recovery (1 attempts)
Jun 23 10:58:27 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:28 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:29 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:30 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:31 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:32 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:33 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:34 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:35 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:36 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:37 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]
Jun 23 10:58:38 punisher systemd-udevd[12827]: timeout: killing 'scsi_id --export --whitelisted -d /dev/sdh' [12828]

¿any idea? How is possible? It is only iSCSI + LVM with no multipath!

 

[nitrosito]

I make other tests, to discard multipath fail.

I create a Qemu machine, on iSCSI LVM, install debian 8. With ACTIVE MULTIPATH.
Created ok. Multipath works. I drop with iptables conection to Powervault, and they work with other paths.

I think that the problem are on RESTORE qemu machine. For some reason, scsi_id is used in the restore process. And appear scsi_id not work good...

¿Any idea?