[DRBD-user] 0.7.6 and sync after invalidate

Eugene Crosser crosser at rol.ru
Tue Nov 23 13:40:41 CET 2004


Philipp and guys,

I seem to hit the same problem today that I already reported long ago 
and that was apparently fixed long ago.  I am running kernel.org kernel 
2.6.10-rc2 and drbd branch/drbd-0.7 checked out this morning, which 
reports itself as 0.7.6.  I was testing my system reaction to pulling 
out a disk; it did all right, drbd noticed underlying device failure and 
dutyfully panicked.  After reconnecting the disk (to hardware RAID0), I 
got the system up and ran "drdbdadm invalidate all" on the system with 
would-be-replaced disk.  In half an hour, SyncTarget reported sync 
complete, but the SyncSource did not:

Nov 23 14:00:58 nfsb2.mail.back kernel: drbd0: 214540288 KB now marked 
out-of-sync by on disk bit-map.
Nov 23 14:00:58 nfsb2.mail.back kernel: drbd0: drbd0_receiver [155]: 
cstate Connected --> SyncSource
Nov 23 14:00:58 nfsb2.mail.back kernel: drbd0: Resync started as 
SyncSource (need to sync 214540288 KB [53635072 bits set]).
Nov 23 14:02:43 nfsb1.mail.back ntpd[133]: time set -0.032269 s
Nov 23 14:16:10 nfsb2.mail.back -- MARK --
Nov 23 14:18:05 nfsb1.mail.back ntpd[133]: time reset -0.145189 s
Nov 23 14:36:10 nfsb2.mail.back -- MARK --
Nov 23 14:38:45 nfsb1.mail.back -- MARK --
Nov 23 14:41:42 nfsb1.mail.back kernel: drbd0: Resync done (total 2445 
sec; paused 0 sec; 87744 K/sec)
Nov 23 14:41:42 nfsb1.mail.back kernel: drbd0: drbd0_worker [152]: 
cstate SyncTarget --> Connected

Now, this is /proc/drbd on both notes:

root at hanode1:~# cat /proc/drbd
version: 0.7.6 (api:77/proto:74)
SVN Revision: 1649 build by crosser at ariel.sovam.com, 2004-11-23 11:15:51
  0: cs:Connected st:Secondary/Primary ld:Consistent
     ns:0 nr:234193156 dw:234193156 dr:0 al:0 bm:27472 lo:0 pe:0 ua:0 ap:0

root at hanode2:~# cat /proc/drbd
version: 0.7.6 (api:77/proto:74)
SVN Revision: 1649 build by crosser at ariel.sovam.com, 2004-11-23 11:15:51
  0: cs:SyncSource st:Primary/Secondary ld:Consistent
     ns:234169036 nr:17584552 dw:38525788 dr:219993817 al:8449 bm:30241 
lo:0 pe:0 ua:0 ap:0
         [===================>] sync'ed:100.0% (1/209512)M
         finish: 0:00:00 speed: 120 (44,464) K/sec

Also interesting thing, on the SyncSource note (hanode2) `uptime' 
reports unreasonable loadaverage:

root at hanode2:~# uptime
  15:34:27  up  3:18,  1 user,  load average: 407.18, 593.69, 871.42

which is simply impossible given that there are only 119 processes...
Running "drbdadm disconnect all" and "drbdadm connect all" apparently 
put things in order.  Maybe.

Eugene
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