[Users] sanlock can't read empty 'ids' file

Ted Miller tmiller at hcjb.org
Mon Jan 27 03:59:31 UTC 2014 

After some indirect path to getting here, I believe that the cause of my 
problem is with sanlock.  (See thread on 'Data Center Status on the GUI flips 
between "Non Responsive" and
"Contending" ' for how I got here).

My sanlock.log file is full of:

2014-01-26 21:36:19-0500 36474 [2905]: s4576 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c:1:/rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids:0

2014-01-26 21:36:19-0500 36474 [26767]: 0322a407 aio collect 0 0x7f196c0008c0:0x7f196c0008d0:0x7f196c101000 result 0:0 match len 512

2014-01-26 21:36:19-0500 36474 [26767]: read_sectors delta_leader offset 0 rv -90 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

2014-01-26 21:36:20-0500 36475 [2905]: s4576 add_lockspace fail result -90

2014-01-26 21:36:26-0500 36481 [2906]: s4577 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c:1:/rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids:0

2014-01-26 21:36:26-0500 36481 [26809]: 0322a407 aio collect 0 0x7f196c0008c0:0x7f196c0008d0:0x7f196c101000 result 0:0 match len 512

2014-01-26 21:36:26-0500 36481 [26809]: read_sectors delta_leader offset 0 rv -90 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

2014-01-26 21:36:27-0500 36482 [2906]: s4577 add_lockspace fail result -90


The only other thing is after rebooting, when it says:

2014-01-26 11:28:53-0500 29 [2897]: sanlock daemon started 2.8 host 09423427-2f70-4f68-9696-e41a93937ef0.office2a.l

2014-01-26 11:29:22-0500 57 [2905]: s1 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c:1:/rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids:0

2014-01-26 11:29:22-0500 57 [3569]: 0322a407 aio collect 0 0x7f196c0008c0:0x7f196c0008d0:0x7f196c001000 result 0:0 match len 512

2014-01-26 11:29:22-0500 57 [3569]: read_sectors delta_leader offset 0 rv -90 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

2014-01-26 11:29:23-0500 58 [2905]: s1 add_lockspace fail result -90

2014-01-26 11:29:32-0500 67 [2905]: s2 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c:1:/rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids:0

2014-01-26 11:29:32-0500 67 [3731]: 0322a407 aio collect 0 0x7f196c0008c0:0x7f196c0008d0:0x7f196c101000 result 0:0 match len 512

2014-01-26 11:29:32-0500 67 [3731]: read_sectors delta_leader offset 0 rv -90 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

2014-01-26 11:29:33-0500 68 [2905]: s2 add_lockspace fail result -90

2014-01-26 11:29:42-0500 77 [2905]: s3 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c:1:/rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids:0

2014-01-26 11:29:42-0500 77 [3806]: 0322a407 aio collect 0 0x7f196c0008c0:0x7f196c0008d0:0x7f196c101000 result 0:0 match len 512

2014-01-26 11:29:42-0500 77 [3806]: read_sectors delta_leader offset 0 rv -90 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

2014-01-26 11:29:43-0500 78 [2905]: s3 add_lockspace fail result -90


Background:
Setup is 2 hosts on Centos 6.5 with gluster storage, engine on separate 
Centos 6.5, all up to date.
Originally set up running:

    Data Center: default
    Cluster: default
    Master storage domain: VM

log had entries like:

    2013-12-18 23:20:39-0500 4510 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -103:0 match res

    2013-12-18 23:20:39-0500 4510 [3318]: s1 delta_renew read rv -103 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:39-0500 4510 [3318]: s1 renewal error -103 delta_length 9 last_success 4481

    2013-12-18 23:20:40-0500 4510 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -107:0 match res

    2013-12-18 23:20:40-0500 4510 [3318]: s1 delta_renew read rv -107 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:40-0500 4510 [3318]: s1 renewal error -107 delta_length 0 last_success 4481

    2013-12-18 23:20:40-0500 4511 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -107:0 match res

    2013-12-18 23:20:40-0500 4511 [3318]: s1 delta_renew read rv -107 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:40-0500 4511 [3318]: s1 renewal error -107 delta_length 0 last_success 4481

    2013-12-18 23:20:41-0500 4511 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -107:0 match res

    2013-12-18 23:20:41-0500 4511 [3318]: s1 delta_renew read rv -107 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:41-0500 4511 [3318]: s1 renewal error -107 delta_length 0 last_success 4481


storage 'VM' had a Split-Brain.  In trying to fix split-brain, file 
dom_md/ids was erased.  I never revived the Data Center 'default' after that.

    log is full of:

    2014-01-16 17:23:21-0500 62902 [29262]: open error -13 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2014-01-16 17:23:21-0500 62902 [29262]: s3 open_disk /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids error -13

    2014-01-16 17:23:22-0500 62903 [3368]: s3 add_lockspace fail result -19

    2014-01-16 17:23:31-0500 62912 [3368]: s4 lockspace 9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88:1:/rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids:0


Jan. 16: Created new:  Data Center: mill; Cluster: one;  Master storage 
domain: 'VM2'  All was working.

    Logs looked like this:

    2013-12-18 23:20:39-0500 4510 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -103:0 match res

    2013-12-18 23:20:39-0500 4510 [3318]: s1 delta_renew read rv -103 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:39-0500 4510 [3318]: s1 renewal error -103 delta_length 9 last_success 4481

    2013-12-18 23:20:40-0500 4510 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -107:0 match res

    2013-12-18 23:20:40-0500 4510 [3318]: s1 delta_renew read rv -107 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:40-0500 4510 [3318]: s1 renewal error -107 delta_length 0 last_success 4481

    2013-12-18 23:20:40-0500 4511 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -107:0 match res

    2013-12-18 23:20:40-0500 4511 [3318]: s1 delta_renew read rv -107 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:40-0500 4511 [3318]: s1 renewal error -107 delta_length 0 last_success 4481

    2013-12-18 23:20:41-0500 4511 [3318]: 9b6e6bf1 aio collect 0 0x7fd3b40008c0:0x7fd3b40008d0:0x7fd3c59ae000 result -107:0 match res

    2013-12-18 23:20:41-0500 4511 [3318]: s1 delta_renew read rv -107 offset 0 /rhev/data-center/mnt/10.41.65.4:_VM/9b6e6bf1-29a1-4abf-8e85-bf9c4a329c88/dom_md/ids

    2013-12-18 23:20:41-0500 4511 [3318]: s1 renewal error -107 delta_length 0 last_success 4481

For a while, very little was logged at all, and this were working fine.  Then,

Jan 22 logs went from:

    2014-01-22 00:44:56-0500 521397 [30933]: leader3 m 0 v 0 ss 0 nh 0 mh 0 oi 0 og 0 lv 0

    2014-01-22 00:44:56-0500 521397 [30933]: leader4 sn  rn  ts 0 cs 0

    2014-01-22 00:44:56-0500 521397 [30933]: s123 delta_renew verify_leader error -223

    2014-01-22 00:44:56-0500 521397 [30933]: s123 renewal error -223 delta_length 0 last_success 521369

    2014-01-22 00:44:57-0500 521398 [3362]: s123 kill 32599 sig 15 count 9

    2014-01-22 00:44:57-0500 521398 [30933]: verify_leader 2 wrong magic 0 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

    2014-01-22 00:44:57-0500 521398 [30933]: leader1 delta_renew error -223 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c host_id 2

    2014-01-22 00:44:57-0500 521398 [30933]: leader2 path /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids offset 0

    2014-01-22 00:44:57-0500 521398 [30933]: leader3 m 0 v 0 ss 0 nh 0 mh 0 oi 0 og 0 lv 0


to:

    2014-01-22 00:45:21-0500 521422 [17199]: 0322a407 aio collect 0 0x7f87ac0008c0:0x7f87ac0008d0:0x7f87ac101000 result 0:0 match len 512

    2014-01-22 00:45:21-0500 521422 [17199]: read_sectors delta_leader offset 512 rv -90 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

    2014-01-22 00:45:22-0500 521423 [3368]: s125 add_lockspace fail result -90

    2014-01-22 00:45:25-0500 521426 [3368]: s126 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c:2:/rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids:0

    2014-01-22 00:45:25-0500 521426 [17243]: 0322a407 aio collect 0 0x7f87ac0008c0:0x7f87ac0008d0:0x7f87ac101000 result 0:0 match len 512

    2014-01-22 00:45:25-0500 521426 [17243]: read_sectors delta_leader offset 512 rv -90 /rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids

    2014-01-22 00:45:26-0500 521427 [3368]: s126 add_lockspace fail result -90

    2014-01-22 00:45:36-0500 521437 [3368]: s127 lockspace 0322a407-2b16-40dc-ac67-13d387c6eb4c:2:/rhev/data-center/mnt/glusterSD/10.41.65.2:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ids:0


and the Data Center has been down ever since.

Best I can figure is that something is supposed to be in dom_md/ids, but that 
file is empty:

ls /rhev/data-center/mnt/glusterSD/10.41.65.2\:VM2/0322a407-2b16-40dc-ac67-13d387c6eb4c/dom_md/ -l

total 1029

-rw-rw---- 1 vdsm kvm       0 Jan 22 00:44 ids

-rw-rw---- 1 vdsm kvm       0 Jan 16 18:50 inbox

-rw-rw---- 1 vdsm kvm 2097152 Jan 21 18:20 leases

-rw-r--r-- 1 vdsm kvm     491 Jan 21 18:20 metadata

-rw-rw---- 1 vdsm kvm       0 Jan 16 18:50 outbox

Any hints as to how to put whatever is needed into 'ids', or reinitialize the 
sanlock system--or a better diagnosis and solution--gladly accepted.

Ted Miller
Elkhart, IN, USA

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