[DRBD-user] connection resets?

Lars Ellenberg lars.ellenberg at linbit.com
Fri Sep 14 10:02:20 CEST 2007

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, Sep 13, 2007 at 10:54:49AM +0200, Lavender, Ben wrote:
> I'm getting the following sets of log messages about 2-3 times per day.
> Performance seems unaffected, but I'm worried.  No other applications
> report any network outages (including heartbeat, which is running on the
> same link).  

and your drbd version is?
and your kernel is?

> Primary:
> 
> Sep 13 04:17:29 backend1 kernel: drbd2: asender terminated
> Sep 13 04:17:29 backend1 kernel: drbd2: short read expecting header on
> sock: r=-512

interesting.
-512 is -ERESTARTSYS, and should have been handled internally.

> Sep 13 04:17:29 backend1 kernel: drbd2: tl_clear()
> Sep 13 04:17:29 backend1 kernel: drbd2: Connection closed
> Sep 13 04:17:29 backend1 kernel: drbd2: Writing meta data super block
> now.
> Sep 13 04:17:29 backend1 kernel: drbd2: conn( NetworkFailure ->
> Unconnected )
> Sep 13 04:17:29 backend1 kernel: drbd2: receiver terminated
> Sep 13 04:17:29 backend1 kernel: drbd2: receiver (re)started
> Sep 13 04:17:29 backend1 kernel: drbd2: conn( Unconnected ->
> WFConnection )
> Sep 13 04:17:30 backend1 kernel: drbd2: conn( WFConnection ->
> WFReportParams )
> Sep 13 04:17:30 backend1 kernel: drbd2: Handshake successful: DRBD
> Network Protocol version 86
> Sep 13 04:17:30 backend1 kernel: drbd2: peer( Unknown -> Primary ) conn(
> WFReportParams -> WFBitMapT ) pdsk( DUnknown -> UpToDate )
> Sep 13 04:17:30 backend1 kernel: drbd2: Writing meta data super block
> now.
> Sep 13 04:17:30 backend1 kernel: drbd2: conn( WFBitMapT -> WFSyncUUID )
> Sep 13 04:17:30 backend1 kernel: drbd2: conn( WFSyncUUID -> SyncTarget )
> disk( UpToDate -> Inconsistent )
> Sep 13 04:17:30 backend1 kernel: drbd2: Began resync as SyncTarget (will
> sync 24 KB [6 bits set]).
> Sep 13 04:17:30 backend1 kernel: drbd2: Writing meta data super block
> now.
> Sep 13 04:17:30 backend1 kernel: drbd2: Resync done (total 1 sec; paused
> 0 sec; 24 K/sec)
> Sep 13 04:17:30 backend1 kernel: drbd2: conn( SyncTarget -> Connected )
> disk( Inconsistent -> UpToDate )
> Sep 13 04:17:30 backend1 kernel: drbd2: Writing meta data super block
> now.
> 
> 
> ==========================================
> Secondary:
> Sep 13 04:17:33 backend2 kernel: drbd2: sock_recvmsg returned -113
> Sep 13 04:17:33 backend2 kernel: drbd2: peer( Secondary -> Unknown )
> conn( Connected -> BrokenPipe ) pdsk( UpToDate -> DUnknown )
> Sep 13 04:17:33 backend2 kernel: drbd2: Creating new current UUID
> Sep 13 04:17:33 backend2 kernel: drbd2: short read expecting header on
> sock: r=-113
> Sep 13 04:17:33 backend2 kernel: drbd2: asender terminated
> Sep 13 04:17:33 backend2 kernel: drbd2: tl_clear()
> Sep 13 04:17:33 backend2 kernel: drbd2: Connection closed
> Sep 13 04:17:33 backend2 kernel: drbd2: Writing meta data super block
> now.
> Sep 13 04:17:33 backend2 kernel: drbd2: conn( BrokenPipe -> Unconnected
> )
> Sep 13 04:17:33 backend2 kernel: drbd2: receiver terminated
> Sep 13 04:17:33 backend2 kernel: drbd2: receiver (re)started
> Sep 13 04:17:33 backend2 kernel: drbd2: conn( Unconnected ->
> WFConnection )
> Sep 13 04:17:33 backend2 kernel: drbd2: conn( WFConnection ->
> WFReportParams )
> Sep 13 04:17:33 backend2 kernel: drbd2: Handshake successful: DRBD
> Network Protocol version 86
> Sep 13 04:17:33 backend2 kernel: drbd2: peer( Unknown -> Secondary )
> conn( WFReportParams -> WFBitMapS ) pdsk( DUnknown -> UpToDate )
> Sep 13 04:17:33 backend2 kernel: drbd2: Writing meta data super block
> now.
> Sep 13 04:17:33 backend2 kernel: drbd2: conn( WFBitMapS -> SyncSource )
> pdsk( UpToDate -> Inconsistent )
> Sep 13 04:17:33 backend2 kernel: drbd2: Began resync as SyncSource (will
> sync 24 KB [6 bits set]).
> Sep 13 04:17:33 backend2 kernel: drbd2: Writing meta data super block
> now.
> Sep 13 04:17:33 backend2 kernel: drbd2: Resync done (total 1 sec; paused
> 0 sec; 24 K/sec)
> Sep 13 04:17:33 backend2 kernel: drbd2: conn( SyncSource -> Connected )
> pdsk( Inconsistent -> UpToDate )
> Sep 13 04:17:33 backend2 kernel: drbd2: Writing meta data super block
> now.
> 
> Ben Lavender
> Systems Design
> MC Dean Europe - Stuttgart
> +49(0)711 849 50179
> +1 703 803 6231 x 7179

-- 
: commercial DRBD/HA support and consulting: sales at linbit.com :
: Lars Ellenberg                            Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH      Fax +43-1-8178292-82 :
: Vivenotgasse 48, A-1120 Vienna/Europe    http://www.linbit.com :
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