[DRBD-user] Connection Breaks Between Primary And Secondary Node

Lars Ellenberg lars.ellenberg at linbit.com
Tue Mar 23 15:03:06 CET 2010

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, Mar 23, 2010 at 03:05:37AM -0700, Qwerty-1 wrote:
> Hi All,
> I have linux-HA set up with two nodes running in Active/Standby Mode. To
> Replicate the data, i am using DRBD. With this architecture, i am facing
> strange problem. TCP Connection between active and stanby nodes break very
> frequently. To re-establish the connection, i tried to use commans drbdadm
> connect all on both Active and Stand by node. But this did not work me. To
> get it workable i always need to restart the standby node. When i restart
> the Standby node, all works well. But after some time it cat /proc/command
> shows on both of the system. Here i am showing output of Standby node:
> 0: cs:WFConnection st:Secondary/Unknown ld:Inconsistent
>     ns:25524 nr:1950788 dw:1976312 dr:49 al:12 bm:133 lo:0 pe:0 ua:0 ap:0
>  1: cs:WFConnection st:Secondary/Unknown ld:Inconsistent
>     ns:8 nr:1935928 dw:1935936 dr:21 al:1 bm:121 lo:0 pe:0 ua:0 ap:0
>  2: cs:WFConnection st:Secondary/Unknown ld:Inconsistent
>     ns:8 nr:1956812 dw:1956820 dr:17 al:1 bm:121 lo:0 pe:0 ua:0 ap:0
>  3: cs:WFConnection st:Secondary/Unknown ld:Inconsistent
>     ns:8 nr:1939224 dw:1939232 dr:21 al:1 bm:121 lo:0 pe:0 ua:0 ap:0
> Please let me help to find out the reason for the same.

Read the logs?

: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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