[DRBD-user] DRBD issue with Ganeti 2.12.1 on Ubuntu 14.04 with DRBD version 8.4.3

Lars Ellenberg lars.ellenberg at linbit.com
Thu May 7 10:34:46 CEST 2015

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


On Thu, Apr 30, 2015 at 11:16:00AM -0500, Josh Hunholz wrote:
> Hey Folks,
> 
> I posted this issue on the Ganeti mailing list as well but they suggested
> that you might be able to help me out to more quickly figure out what is
> going on.  So we are setting up a new Ganeti cluster with version 2.12.1
> running on Ubuntu 14.04.  It is using DRBD version 8.4.3.  The disk starts
> to create but never completes syncing.  On the primary, it looks like this:
> 
> root at icnodeb-03:~# cat /proc/drbd
> version: 8.4.3 (api:1/proto:86-101)
> srcversion: F97798065516C94BE0F27DC
>  0: cs:SyncSource ro:Primary/Secondary ds:UpToDate/Inconsistent C r---n-
>     ns:576 nr:0 dw:0 dr:15304 al:0 bm:0 lo:0 pe:1 ua:7 ap:0 ep:1 wo:f
> oos:10485760
> [>....................] sync'ed:  0.1% (10240/10240)Mfinish: 283:59:21
> speed: 0 (0) K/sec
> 
> And on the secondary it looks like this:
> 
> root at icnodeb-04:~# cat /proc/drbd
> version: 8.4.3 (api:1/proto:86-101)
> srcversion: F97798065516C94BE0F27DC
>  0: cs:SyncTarget ro:Secondary/Primary ds:Inconsistent/UpToDate C r-----
>     ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:7 ua:0 ap:0 ep:1 wo:f oos:10485760
> [>....................] sync'ed:  0.1% (10240/10240)Mfinish: 123:47:24
> speed: 0 (0) want: 0 K/sec
> 
> It stays that way and never gets past 0.1%.

Network problem?
MTU mismatch?
Are you able to write to the Primary while it is in that state?

> Is there anything else I can
> check to try and figure out what is going on?

Check the kernel logs.

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

DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
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