[DRBD-user] Server reboot on DRBD heavy load problem

Proskurin Kirill proskurin-kv at fxclub.org
Mon Sep 20 13:43:05 CEST 2010

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hello all.

I fight with strange problem for more than a 3 week.

What we have:
2xDell 2950 with Debian 5.0 2.6.32-bpo.5-amd64 from backports with DRBD 
inside + OCFS2

I make a heavy load by iozone on OCFS2 partition:
iozone -RK -t 4 -s 10g -i 0 -i 1 -i 2 -b /tmp/`hostname`.xls
on both nodes.

And after a 1-3 hour servers(both) reboots. It is DRBD or OCFS2 related 
just because it is not happend on normal partition. OCFS2 developers 
look at stack trace what I catch and say what it is not a OCFS2 problem.
I try to send you an screenshot of a stacktrace but run in a 40kb limit 
of message(it is 32kb) Below will be some strace what i gave on console.

I start to think what it is hardware or system. I try 2.6.26 kernel and 
updating to testing - not helps at all.

So - it is hardware or DRBD. Could you please help me to find out there 
problem is?



Configs below:

mail01:~# cat /etc/drbd.d/drbd0.res
resource drbd0 {

on mail01.fxclub.org {
device /dev/drbd0;
disk /dev/sda9;
address 192.168.1.1:7789;
meta-disk internal;
}

on mail02.fxclub.org {
device /dev/drbd0;
disk /dev/sda9;
address 192.168.1.2:7789;
meta-disk internal;
}

}


mail01:~# cat /etc/drbd.d/global_common.conf
global {
     usage-count yes;
     # minor-count dialog-refresh disable-ip-verification
}

common {
     protocol C;

     handlers {
         pri-on-incon-degr "/usr/lib/drbd/notify-pri-on-incon-degr.sh; 
/usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; 
reboot -f";
         pri-lost-after-sb "/usr/lib/drbd/notify-pri-lost-after-sb.sh; 
/usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; 
reboot -f";
         local-io-error "/usr/lib/drbd/notify-io-error.sh; 
/usr/lib/drbd/notify-emergency-shutdown.sh; echo o > /proc/sysrq-trigger 
; halt -f";
         outdate-peer "/usr/lib/heartbeat/drbd-peer-outdater -t 5";
         # fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
         split-brain "/usr/lib/drbd/notify-split-brain.sh root";
         # out-of-sync "/usr/lib/drbd/notify-out-of-sync.sh root";
         # before-resync-target 
"/usr/lib/drbd/snapshot-resync-target-lvm.sh -p 15 -- -c 16k";
         # after-resync-target 
/usr/lib/drbd/unsnapshot-resync-target-lvm.sh;
     }

     startup {
         wfc-timeout 60;
         degr-wfc-timeout 30;
         outdated-wfc-timeout 15;
         become-primary-on both;
         # wait-after-sb;
     }

     disk {
         fencing resource-and-stonith;
         no-disk-flushes;
         no-md-flushes;
         no-disk-barrier;
         # on-io-error fencing use-bmbv no-disk-barrier no-disk-flushes
         # no-disk-drain no-md-flushes max-bio-bvecs
     }

     net {
         cram-hmac-alg sha1;
         shared-secret "password";
         allow-two-primaries;
         ping-timeout 20;
         after-sb-0pri discard-zero-changes;
         after-sb-1pri discard-secondary;
         after-sb-2pri disconnect;
         data-integrity-alg sha1;
                 # Tuning
                 max-buffers 8000;
                 max-epoch-size 8000;
                 sndbuf-size 0;
         # snd.buf-size rcvbuf-size timeout connect-int ping-int 
ping-timeout max-buffers
         # max-epoch-size ko-count allow-two-primaries cram-hmac-alg 
shared-secret
         # after-sb-0pri after-sb-1pri after-sb-2pri data-integrity-alg 
no-tcp-cork
     }

     syncer {
         rate 60M;
         al-extents 3389;
         # rate after al-extents use-rle cpu-mask verify-alg csums-alg
     }
}

P.S. I start to think what it can be a handlers and comented them - not 
help.

Message from syslogd at mail02 at Sep 16 09:03:19 ...
  kernel:[92182.173794] ------------[ cut here ]------------

Message from syslogd at mail02 at Sep 16 09:03:19 ...
  kernel:[92182.173872] invalid opcode: 0000 [#1] SMP

Message from syslogd at mail02 at Sep 16 09:03:19 ...
  kernel:[92182.173899] last sysfs file: /sys/module/ocfs2/refcnt


Message from syslogd at mail01 at Sep 16 15:18:37 ...
  kernel:[ 1432.310479] ------------[ cut here ]------------

Message from syslogd at mail01 at Sep 16 15:18:37 ...
  kernel:[ 1432.310648] invalid opcode: 0000 [#1] SMP

Message from syslogd at mail01 at Sep 16 15:18:37 ...
  kernel:[ 1432.310801] last sysfs file: /sys/fs/o2cb/interface_revision

Message from syslogd at mail01 at Sep 16 15:18:37 ...
  kernel:[ 1432.312251] Stack:

Message from syslogd at mail01 at Sep 16 15:18:37 ...
  kernel:[ 1432.312251] Call Trace:

Message from syslogd at mail01 at Sep 16 15:18:37 ...
  kernel:[ 1432.312251] Code: 83 c3 08 48 83 3b 00 eb ec 48 83 fd 10 0f 
86 89 00 00 00 48 89 ef e8 b9 e8 ff ff 48 89 c7 48 8b 00 84 c0 78 13 66 
a9 00 c0 75 04 <0f> 0b eb fe 5b 5d 41 5c e9 94 58 fd ff 48 8b 4c 24 18 
4c 8b 4f

-- 
Best regards,
Proskurin Kirill

debian-bug.jpg




More information about the drbd-user mailing list