[DRBD-user] Data Rollback on DRBD 8.3.4

jayson.cena at teamglac.com jayson.cena at teamglac.com
Wed Feb 23 10:37:45 CET 2011

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


sorry about that. here is the config

###############################
global { usage-count no; }
common { syncer { rate 500M; } }

#DRBD FOR SERVER START
resource r0 {
	protocol C;
	startup {
		wfc-timeout 15;
		degr-wfc-timeout 60;
		become-primary-on both;	
	}
	net {
		cram-hmac-alg sha1;
		shared-secret "a4tech";
		allow-two-primaries;
		after-sb-0pri discard-zero-changes;
		after-sb-1pri discard-secondary;
		after-sb-2pri disconnect;
		allow-two-primaries;
	}
	on vmcluster01 {
		device /dev/drbd0;
		disk /dev/vmdiskvg/server_root_disk;
		address 172.16.0.1:7788;
		meta-disk internal;
	}
	on vmcluster02 {
		device /dev/drbd0;
		disk /dev/vmdiskvg/server_root_disk;
		address 172.16.0.2:7788;
		meta-disk internal;
	}
}
###############################

here are the logs from vmcluster1 r0
###############################
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: Starting worker thread
(from cqueue [4385])
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: disk( Diskless ->
Attaching ) 
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: Found 4 transactions (94
active extents) in activity log.
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: Method to ensure write
ordering: barrier
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: Backing device's
merge_bvec_fn() = ffffffff814445a0
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: max_segment_size ( = BIO
size ) = 4096
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: drbd_bm_resize called
with capacity == 10485368
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: resync bitmap:
bits=1310671 words=20480
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: size = 5120 MB (5242684
KB)
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: recounting of set bits
took additional 0 jiffies
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: 0 KB (0 bits) marked
out-of-sync by on disk bit-map.
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: Marked additional 200 MB
as out-of-sync based on AL.
Feb 16 08:00:09 vmcluster01 kernel: block drbd0: disk( Attaching ->
UpToDate ) 
Feb 16 08:00:11 vmcluster01 kernel: block drbd0: conn( StandAlone ->
Unconnected ) 
Feb 16 08:00:11 vmcluster01 kernel: block drbd0: Starting receiver thread
(from drbd0_worker [4403])
Feb 16 08:00:11 vmcluster01 kernel: block drbd0: receiver (re)started
Feb 16 08:00:11 vmcluster01 kernel: block drbd0: conn( Unconnected ->
WFConnection ) 
Feb 16 08:00:26 vmcluster01 kernel: block drbd0: role( Secondary ->
Primary ) 
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: Handshake successful:
Agreed network protocol version 91
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: Peer authenticated using
20 bytes of 'sha1' HMAC
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: conn( WFConnection ->
WFReportParams ) 
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: Starting asender thread
(from drbd0_receiver [4795])
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: data-integrity-alg:
<not-used>
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: drbd_sync_handshake:
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: self
08EC53F109A4A4CF:5DB3199CA5DE92F4:DCE4E128E07FD84A:5995FC353101D3B7
bits:51200 flags:0
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: peer
5453F9D5A1166380:5DB3199CA5DE92F5:DCE4E128E07FD84A:5995FC353101D3B7
bits:145101 flags:2
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: uuid_compare()=100 by
rule 90
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: Split-Brain detected, 1
primaries, automatically solved. Sync from this node
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: peer( Unknown ->
Secondary ) conn( WFReportParams -> WFBitMapS ) pdsk( DUnknown -> UpToDate
) 
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: conn( WFBitMapS ->
SyncSource ) pdsk( UpToDate -> Inconsistent ) 
Feb 16 08:01:53 vmcluster01 kernel: block drbd0: Began resync as
SyncSource (will sync 632904 KB [158226 bits set]).
Feb 16 08:02:17 vmcluster01 kernel: block drbd0: peer( Secondary ->
Primary ) 
Feb 16 08:04:50 vmcluster01 kernel: block drbd0: Resync done (total 87
sec; paused 0 sec; 7272 K/sec)
Feb 16 08:04:50 vmcluster01 kernel: block drbd0: conn( SyncSource ->
Connected ) pdsk( Inconsistent -> UpToDate ) 

###############################

here are the logs for vmcluster2 (where the file servers are hosted)
###############################
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: Starting worker thread
(from cqueue [3624])
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: disk( Diskless ->
Attaching ) 
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: Found 4 transactions (136
active extents) in activity log.
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: Method to ensure write
ordering: barrier
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: Backing device's
merge_bvec_fn() = ffffffffa011ccb0
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: max_segment_size ( = BIO
size ) = 4096
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: drbd_bm_resize called
with capacity == 10485368
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: resync bitmap:
bits=1310671 words=20480
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: size = 5120 MB (5242684
KB)
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: recounting of set bits
took additional 0 jiffies
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: 87 MB (22299 bits) marked
out-of-sync by on disk bit-map.
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: Marked additional 480 MB
as out-of-sync based on AL.
Feb 16 08:01:49 vmcluster02 kernel: block drbd0: disk( Attaching ->
UpToDate ) 
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: conn( StandAlone ->
Unconnected ) 
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: Starting receiver thread
(from drbd0_worker [3647])
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: receiver (re)started
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: conn( Unconnected ->
WFConnection ) 
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: Handshake successful:
Agreed network protocol version 91
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: Peer authenticated using
20 bytes of 'sha1' HMAC
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: conn( WFConnection ->
WFReportParams ) 
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: Starting asender thread
(from drbd0_receiver [4269])
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: data-integrity-alg:
<not-used>
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: drbd_sync_handshake:
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: self
5453F9D5A1166380:5DB3199CA5DE92F5:DCE4E128E07FD84A:5995FC353101D3B7
bits:145101 flags:0
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: peer
08EC53F109A4A4CF:5DB3199CA5DE92F4:DCE4E128E07FD84A:5995FC353101D3B7
bits:51200 flags:2
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: uuid_compare()=100 by
rule 90
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: Split-Brain detected, 1
primaries, automatically solved. Sync from peer node
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: peer( Unknown -> Primary
) conn( WFReportParams -> WFBitMapT ) pdsk( DUnknown -> UpToDate ) 
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: conn( WFBitMapT ->
WFSyncUUID ) 
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: helper command:
/sbin/drbdadm before-resync-target minor-0
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: helper command:
/sbin/drbdadm before-resync-target minor-0 exit code 0 (0x0)
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: conn( WFSyncUUID ->
SyncTarget ) disk( UpToDate -> Inconsistent ) 
Feb 16 08:01:50 vmcluster02 kernel: block drbd0: Began resync as
SyncTarget (will sync 632904 KB [158226 bits set]).
Feb 16 08:02:13 vmcluster02 kernel: block drbd0: role( Secondary ->
Primary ) 
Feb 16 08:03:17 vmcluster02 kernel: block drbd0: Resync done (total 87
sec; paused 0 sec; 7272 K/sec)
Feb 16 08:03:17 vmcluster02 kernel: block drbd0: conn( SyncTarget ->
Connected ) disk( Inconsistent -> UpToDate ) 
Feb 16 08:03:17 vmcluster02 kernel: block drbd0: helper command:
/sbin/drbdadm after-resync-target minor-0
Feb 16 08:03:17 vmcluster02 kernel: block drbd0: helper command:
/sbin/drbdadm after-resync-target minor-0 exit code 0 (0x0)

###############################




More information about the drbd-user mailing list