Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Tue, Jun 12, 2007 at 01:51:04PM -0400, Craig Hoffman wrote:
> I'm having a problem getting my secondary node to see that data has
> changed on the primary and that it needs to sync up.
> The problem seems to be happening to me on both 0.7 and 0.8. I'm sure
> that it's just something that I'm doing, but I'd like a little pointer.
>
> Here's what I've done to replicate the problem...
>
> Bring up both nodes. Force one into being a primary. The secondary
> node notices this and they start syncing up. This happened when I first
> set DRBD up. If I leave things be, the two seem to remain in sync just
> fine. Catting /proc/drbd shows the numbers changing. Good. But, if I
> do a /etc/init.d/drbd stop and then a start on the secondary, things
> never sync again *unless* I force the secondary as inconsistent.
>
> My backend devices are LVM. So, in effect, I'm running drbd on top of
> LVM. My primary server names are xen04 and my secondary is xen05.
>
> Here is a snippet from my drbd.conf:
>
> resource logserver {
> protocol C;
> startup {
> degr-wfc-timeout 120;
> }
> disk {
> on-io-error detach;
> }
> net {}
> syncer {
> rate 10M;
> }
> on xen05 {
> device /dev/drbd0;
> disk /dev/mapper/domu-logserver;
> address 192.168.0.60:7788;
> meta-disk /dev/domu/drbdmeta[1];
> }
> on xen04 {
> device /dev/drbd0;
> disk /dev/mapper/domu-logserver;
> address 192.168.0.72:7788;
> meta-disk /dev/domu/drbdmeta[1];
> }
you are sure you want to have a drbd between two domU ?
you are sure that the "disk = []" in you xen configs is ok,
no copy'n'paste error? (sorry, I have to ask, that _does_ happen)
> My /proc/drbd earlier in the day:
>
> xen05:/usr/src/drbd-8.0.3# cat /proc/drbd
> version: 8.0.3 (api:86/proto:86)
> SVN Revision: 2881 build by root at xen05, 2007-06-11 11:57:14
> 0: cs:Connected st:Secondary/Primary ds:UpToDate/UpToDate C r---
> ns:0 nr:20480000 dw:20480000 dr:0 al:0 bm:1250 lo:0 pe:0 ua:0 ap:0
> resync: used:0/31 hits:1278750 misses:1250 starving:0 dirty:0
> changed:1250
> act_log: used:0/127 hits:0 misses:0 starving:0 dirty:0 changed:0
>
>
>
> And then after I've done a
> /etc/init.d/drbd stop
> /etc/init.d/drbd start
> on the secondary machine.
>
> xen05:/usr/src/drbd-8.0.3# cat /proc/drbd
> version: 8.0.3 (api:86/proto:86)
> SVN Revision: 2881 build by root at xen05, 2007-06-11 11:57:14
> 0: cs:Connected st:Secondary/Primary ds:UpToDate/UpToDate C r---
> ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0
> resync: used:0/31 hits:0 misses:0 starving:0 dirty:0 changed:0
> act_log: used:0/127 hits:0 misses:0 starving:0 dirty:0 changed:0
what makes you think there is something wrong with this output?
--
: Lars Ellenberg Tel +43-1-8178292-0 :
: LINBIT Information Technologies GmbH Fax +43-1-8178292-82 :
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