[DRBD-user] full-resync after connecting

Martin Gombač martin at isg.si
Wed Jan 20 13:54:47 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.


I doubt that you have that problem.
Seems like you get split brain and have to sync manually:
 >drbd11: Split-Brain detected, manually solved. Sync from this node
Bad configuration, expected behaviour, ..?

They were definitely not consistent. At least that's what your log says.

Regards,
M.


raveenpl wrote:
> Hi,
>
> I am currently using drbd 8.0.16. I've noticed that after connecting
> (previously consistent resources) there is full resynchronization. This
> problem occurs only sometimes.
>
> In dmesg:
>
> drbd11: conn( StandAlone -> Unconnected )
> drbd11: Starting receiver thread (from drbd11_worker [23213])
> drbd11: receiver (re)started
> drbd11: conn( Unconnected -> WFConnection )
> drbd11: Handshake successful: DRBD Network Protocol version 86
> drbd11: conn( WFConnection -> WFReportParams )
> drbd11: Starting asender thread (from drbd11_receiver [16622])
> drbd11: drbd_sync_handshake:
> drbd11: self
> 3B983F6A655C3FC7:43A86E7EF92164DA:352FCBD8A10DCA0A:437D1375535EF3D6
> drbd11: peer
> 8C59BCEDA12A3374:0000000000000000:43A86E7EF92164DB:940EDF236F226E03
> drbd11: uuid_compare()=-100 by rule 10
> drbd11: Split-Brain detected, manually solved. Sync from this node
> drbd11: peer( Unknown -> Secondary ) conn( WFReportParams -> WFBitMapS )
> pdsk( DUnknown -> UpToDate )
> drbd11: conn( WFBitMapS -> SyncSource ) pdsk( UpToDate -> Inconsistent )
> drbd11: Began resync as SyncSource (will sync 32505856 KB [8126464 bits
> set]).
>
> I've noticed that in GIT there is FIX "fix race in state handling which
> caused a full sync"
> (http://git.drbd.org/?p=drbd-8.0.git;a=commit;h=0c739fbf298c3d274abf9d0b43225b296c2e766c).
> Is that solution for this problem?
>
>
>   



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