[DRBD-user] 8.3.5 Stalling on sync

Mike Lovell mike at dev-zero.net
Tue Nov 24 18:48:31 CET 2009


James Larcombe wrote:
>
> Hi List,
>
>  
>
> Please help. I have installed drbd 8.3.5 on Open Suse 11.1 (Kernel 
> 2.6.27.29-0.1).
>
>  
>
> I have run drbdadm create-md dbms-test on one node and create-md 
> dbms-test2 on the other node. I then ran drbdadm up all on both nodes. 
> I then ran drbdadm -- --overwrite-data-of-my-peer primary dbms-test on 
> the first node and the same with dbms-test2 on the other node. They 
> then run for a short while before stalling. I have tried older version 
> without success and turning the sync rate down does not make any 
> difference. Downing the resources and bringing back up starts the sync 
> again but this then stalls quickly.
>
>  
>
> I have attached /proc/drbd, /etc/drbd.conf and a section from 
> /var/log/messages. Any pointers would be greatly appreciated.
>
>  
>
> version: 8.3.5 (api:88/proto:86-91)
>
> GIT-hash: ded8cdf09b0efa1460e8ce7a72327c60ff2210fb build by 
> root at hp-tm-40, 2009-11-24 12:21:46
>
>  0: cs:SyncSource ro:Secondary/Secondary ds:UpToDate/Inconsistent C r----
>
>     ns:160896 nr:0 dw:0 dr:160896 al:0 bm:9 lo:1 pe:0 ua:0 ap:0 ep:1 
> wo:b oos:926694296
>
>         [>.] sync'ed:  0.1% (905040/905132)M      4972
>
>         stalled
>
>  1: cs:SyncTarget ro:Secondary/Secondary ds:Inconsistent/UpToDate C r----
>
>     ns:0 nr:2173248 dw:2173248 dr:0 al:0 bm:132 lo:0 pe:29878 ua:0 
> ap:0 ep:1 wo:b oos:777971256
>
>         [>.] sync'ed:  0.3% (759736/761856)M
>
>         Stalled
>

what kind of network are you using between the two servers? this is 
almost the exact same behavior i had when i was trying to get drbd to 
work over 10gig ethernet. turned out to be something in drbd didn't like 
something about the 10gig cards i had. i eventually had to change my 
network cards. what cards are you using? 1gig? 10gig? have you tried 
other cards? that is where i would look.

mike
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