[DRBD-user] connection problem

Mark Olliver mark at thermeon.com
Tue Jun 9 20:24:46 CEST 2009

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


Hi,

I am having problems where the target host and the source host seem to  
loose connectivity just as the sync start. I have tried disconnecting,  
reconnecting, adjusting etc but everytime i get the same result. The  
only thing i have not tried is taking the source off-line as it is  
currently serving data and was replicating to another host before i  
did an adjust to re-point it here.

Any ideas welcome.

Regards

Mark

dmesg output
target host
[ 3959.434580] drbd2: conn( StandAlone -> Unconnected )
[ 3959.434609] drbd2: Starting receiver thread (from drbd2_worker  
[5211])
[ 3959.434648] drbd2: receiver (re)started
[ 3959.434656] drbd2: conn( Unconnected -> WFConnection )
[ 3959.534065] drbd2: Handshake successful: Agreed network protocol  
version 89
[ 3959.534073] drbd2: conn( WFConnection -> WFReportParams )
[ 3959.534083] drbd2: Starting asender thread (from drbd2_receiver  
[5415])
[ 3959.534150] drbd2: data-integrity-alg: <not-used>
[ 3959.534201] drbd2: drbd_sync_handshake:
[ 3959.534206] drbd2: self  
CBDD0FEEDFAD52E0:0000000000000000:0000000000000000:0000000000000000  
bits:10486090 flags:0
[ 3959.534211] drbd2: peer  
6E053BF605FF71DD:CBDD0FEEDFAD52E1:BDFC8341C0F17CAC:7A0ECA93E9484385  
bits:10486090 flags:0
[ 3959.534215] drbd2: uuid_compare()=-1 by rule 5
[ 3959.534218] drbd2: Becoming sync target due to disk states.
[ 3959.535018] drbd2: peer( Unknown -> Primary ) conn( WFReportParams - 
 > WFBitMapT ) pdsk( DUnknown -> UpToDate )
[ 3959.556512] drbd2: conn( WFBitMapT -> WFSyncUUID )
[ 3959.564259] drbd2: helper command: /sbin/drbdadm before-resync- 
target minor-2
[ 3959.566955] drbd2: helper command: /sbin/drbdadm before-resync- 
target minor-2 exit code 127 (0x7f00)
[ 3959.566962] drbd2: before-resync-target handler returned 127,  
dropping connection.
[ 3959.566966] drbd2: peer( Primary -> Unknown ) conn( WFSyncUUID ->  
Disconnecting ) pdsk( UpToDate -> DUnknown )
[ 3959.566991] drbd2: asender terminated
[ 3959.566996] drbd2: Terminating asender thread
[ 3959.567089] drbd2: Connection closed
[ 3959.567096] drbd2: conn( Disconnecting -> StandAlone )
[ 3959.567113] drbd2: receiver terminated
[ 3959.567116] drbd2: Terminating receiver thread

sync host
drbd2: Restarting receiver thread
drbd2: receiver (re)started
drbd2: conn( Unconnected -> WFConnection )
drbd1: peer_isp( 1 -> 0 )
drbd3: aftr_isp( 1 -> 0 )
drbd2: Handshake successful: Agreed network protocol version 89
drbd2: conn( WFConnection -> WFReportParams )
drbd2: Starting asender thread (from drbd2_receiver [12413])
drbd2: data-integrity-alg: <not-used>
drbd2: drbd_sync_handshake:
drbd2: self 6E053BF605FF71DD:CBDD0FEEDFAD52E1:BDFC8341C0F17CAC: 
7A0ECA93E9484385
drbd2: peer  
CBDD0FEEDFAD52E0:0000000000000000:0000000000000000:0000000000000000
drbd2: uuid_compare()=1 by rule 7
drbd2: Becoming sync source due to disk states.
drbd2: peer( Unknown -> Secondary ) conn( WFReportParams -> WFBitMapS )
drbd2: conn( WFBitMapS -> SyncSource )
drbd0: aftr_isp( 0 -> 1 )
drbd1: aftr_isp( 0 -> 1 )
drbd3: aftr_isp( 0 -> 1 )
drbd2: Began resync as SyncSource (will sync 41944360 KB [10486090  
bits set]).
drbd1: peer_isp( 0 -> 1 )
drbd2: meta connection shut down by peer.
drbd2: peer( Secondary -> Unknown ) conn( SyncSource -> NetworkFailure )
drbd2: asender terminated
drbd2: Terminating asender thread
drbd0: aftr_isp( 1 -> 0 )
drbd1: aftr_isp( 1 -> 0 )
drbd2: sock was shut down by peer
drbd2: short read expecting header on sock: r=0
drbd2: Connection closed
drbd2: conn( NetworkFailure -> Unconnected )
drbd2: receiver terminated




Mark Olliver BSc (Hons) MBCS CITP FCNSA,
Thermeon (Systems Admin)
Russ Hill Farm, Russ Hill, Charlwood, Surrey, RH6 0EL, UK
E. mark at thermeon.com
M. +44 79 20 062 647

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