[DRBD-user] split-brain after trying to verify?

Michael Tokarev mjt at tls.msk.ru
Fri Oct 23 13:54:05 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.


Mark Watts wrote:
> On Fri, 2009-10-23 at 15:21 +0400, Michael Tokarev wrote:
> <snip>
> 
>> Comments?
> 
> You need to paste log entries...

Sure.  Here we go.  It's the complete log of whole my experiment
(from dmesg), from the machine where I issued `verify' command:

drbd: initialized. Version: 8.3.3rc2 (api:88/proto:86-91)
drbd: srcversion: B9188A246B5353B66BBE441
drbd: registered as block device major 147
drbd: minor_table @ 0xffff88021e8ebec0
block drbd1: Starting worker thread (from cqueue [25370])
block drbd1: disk( Diskless -> Attaching )
block drbd1: No usable activity log found.
block drbd1: Method to ensure write ordering: barrier
block drbd1: Backing device's merge_bvec_fn() = ffffffffa02162a0
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: Adjusting my ra_pages to backing device's (32 -> 192)
block drbd1: drbd_bm_resize called with capacity == 16782736
block drbd1: resync bitmap: bits=2097842 words=32779
block drbd1: size = 8195 MB (8391368 KB)
block drbd1: Writing the whole bitmap, size changed
block drbd1: meta data flush failed with status -95, disabling md-flushes
block drbd1: 8195 MB (2097842 bits) marked out-of-sync by on disk bit-map.
block drbd1: recounting of set bits took additional 0 jiffies
block drbd1: 8195 MB (2097842 bits) marked out-of-sync by on disk bit-map.
block drbd1: disk( Attaching -> Inconsistent )
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [25374])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [25388])
block drbd1: data-integrity-alg: <not-used>
block drbd1: drbd_bm_resize called with capacity == 16776632
block drbd1: resync bitmap: bits=2097079 words=32767
block drbd1: size = 8192 MB (8388316 KB)
block drbd1: Writing the whole bitmap, size changed
block drbd1: 8192 MB (2097079 bits) marked out-of-sync by on disk bit-map.
block drbd1: Backing device's merge_bvec_fn() = ffffffffa02162a0
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_sync_handshake:
block drbd1: self 0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:2097842 flags:0
block drbd1: peer 0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:2097079 flags:0
block drbd1: uuid_compare()=0 by rule 10
block drbd1: No resync, but 2097079 bits in bitmap!
block drbd1: peer( Unknown -> Secondary ) conn( WFReportParams -> Connected ) pdsk( DUnknown -> Inconsistent )
block drbd1: role( Secondary -> Primary ) disk( Inconsistent -> UpToDate )
block drbd1: Forced to consider local data as UpToDate!
block drbd1: Creating new current UUID
block drbd1: drbd_sync_handshake:
block drbd1: self C21574A3E945AF39:0000000000000004:0000000000000000:0000000000000000 bits:2097079 flags:0
block drbd1: peer 0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:2097079 flags:0
block drbd1: uuid_compare()=2 by rule 30
block drbd1: Becoming sync source due to disk states.
block drbd1: Writing the whole bitmap, full sync required after drbd_sync_handshake.
block drbd1: 8192 MB (2097079 bits) marked out-of-sync by on disk bit-map.
block drbd1: conn( Connected -> WFBitMapS )
block drbd1: conn( WFBitMapS -> SyncSource )
block drbd1: Began resync as SyncSource (will sync 8388316 KB [2097079 bits set]).
block drbd1: Resync done (total 295 sec; paused 0 sec; 28432 K/sec)
block drbd1: conn( SyncSource -> Connected ) pdsk( Inconsistent -> UpToDate )
block drbd1: peer( Secondary -> Unknown ) conn( Connected -> TearDown ) pdsk( UpToDate -> DUnknown )
block drbd1: Creating new current UUID
block drbd1: meta connection shut down by peer.
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( TearDown -> Unconnected )
block drbd1: receiver terminated
block drbd1: Restarting drbd1_receiver
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: role( Primary -> Secondary )
block drbd1: conn( WFConnection -> Disconnecting )
block drbd1: Discarding network configuration.
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: disk( UpToDate -> Diskless )
block drbd1: drbd_bm_resize called with capacity == 0
block drbd1: worker terminated
block drbd1: Terminating drbd1_worker
block drbd1: Starting worker thread (from cqueue [25370])
block drbd1: disk( Diskless -> Attaching )
block drbd1: Found 4 transactions (140 active extents) in activity log.
block drbd1: Method to ensure write ordering: barrier
block drbd1: Backing device's merge_bvec_fn() = ffffffffa02162a0
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_bm_resize called with capacity == 16776632
block drbd1: resync bitmap: bits=2097079 words=32767
block drbd1: size = 8192 MB (8388316 KB)
block drbd1: recounting of set bits took additional 0 jiffies
block drbd1: 0 KB (0 bits) marked out-of-sync by on disk bit-map.
block drbd1: disk( Attaching -> UpToDate )
block drbd1: Barriers not supported on meta data device - disabling
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [26360])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [26369])
block drbd1: data-integrity-alg: <not-used>
block drbd1: Backing device's merge_bvec_fn() = ffffffffa02162a0
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_sync_handshake:
block drbd1: self 910498F57D5D7F76:C21574A3E945AF39:14642B2C643088A7:0000000000000004 bits:0 flags:0
block drbd1: peer C21574A3E945AF38:0000000000000000:14642B2C643088A6:0000000000000004 bits:0 flags:0
block drbd1: uuid_compare()=1 by rule 70
block drbd1: peer( Unknown -> Secondary ) conn( WFReportParams -> WFBitMapS ) pdsk( DUnknown -> UpToDate )
block drbd1: conn( WFBitMapS -> SyncSource ) pdsk( UpToDate -> Inconsistent )
block drbd1: Began resync as SyncSource (will sync 0 KB [0 bits set]).
block drbd1: Resync done (total 1 sec; paused 0 sec; 0 K/sec)
block drbd1: conn( SyncSource -> Connected ) pdsk( Inconsistent -> UpToDate )
block drbd1: peer( Secondary -> Primary )
block drbd1: role( Secondary -> Primary )
block drbd1: write: error=-95 s=0s
block drbd1: Method to ensure write ordering: flush
block drbd1: local disk flush failed with status -95
block drbd1: Method to ensure write ordering: drain
block drbd1: peer( Primary -> Unknown ) conn( Connected -> TearDown ) pdsk( UpToDate -> DUnknown )
block drbd1: Creating new current UUID
block drbd1: meta connection shut down by peer.
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( TearDown -> Unconnected )
block drbd1: receiver terminated
block drbd1: Restarting drbd1_receiver
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [26369])
block drbd1: data-integrity-alg: <not-used>
block drbd1: Different verify-alg settings. me="" peer="sha1"
block drbd1: conn( WFReportParams -> Disconnecting )
block drbd1: error receiving SyncParam89, l: 132!
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [26360])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: State change failed: Need a connection to start verify or resync
block drbd1:   state = { cs:WFConnection ro:Primary/Unknown ds:UpToDate/DUnknown r--- }
block drbd1:  wanted = { cs:VerifyS ro:Primary/Unknown ds:UpToDate/DUnknown r--- }
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [26632])
block drbd1: data-integrity-alg: <not-used>
block drbd1: drbd_sync_handshake:
block drbd1: self 69E216884FA39819:910498F57D5D7F77:FF9BBE28839651A5:C21574A3E945AF39 bits:0 flags:0
block drbd1: peer E26808C6C8EFE1EB:910498F57D5D7F77:FF9BBE28839651A4:C21574A3E945AF39 bits:0 flags:0
block drbd1: uuid_compare()=100 by rule 90
block drbd1: Split-Brain detected, dropping connection!
block drbd1: helper command: /sbin/drbdadm split-brain minor-1
block drbd1: meta connection shut down by peer.
block drbd1: conn( WFReportParams -> NetworkFailure )
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: helper command: /sbin/drbdadm split-brain minor-1 exit code 0 (0x0)
block drbd1: conn( NetworkFailure -> Disconnecting )
block drbd1: error receiving ReportState, l: 4!
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [26360])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: role( Primary -> Secondary )
block drbd1: conn( WFConnection -> Disconnecting )
block drbd1: Discarding network configuration.
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: disk( UpToDate -> Diskless )
block drbd1: drbd_bm_resize called with capacity == 0
block drbd1: worker terminated
block drbd1: Terminating drbd1_worker
block drbd1: Starting worker thread (from cqueue [25370])
block drbd1: disk( Diskless -> Attaching )
block drbd1: Found 4 transactions (87 active extents) in activity log.
block drbd1: Method to ensure write ordering: barrier
block drbd1: Backing device's merge_bvec_fn() = ffffffffa02162a0
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_bm_resize called with capacity == 16776632
block drbd1: resync bitmap: bits=2097079 words=32767
block drbd1: size = 8192 MB (8388316 KB)
block drbd1: recounting of set bits took additional 0 jiffies
block drbd1: 0 KB (0 bits) marked out-of-sync by on disk bit-map.
block drbd1: disk( Attaching -> UpToDate )
block drbd1: Barriers not supported on meta data device - disabling
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [26697])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [26706])
block drbd1: data-integrity-alg: <not-used>
block drbd1: Backing device's merge_bvec_fn() = ffffffffa02162a0
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_sync_handshake:
block drbd1: self 69E216884FA39818:910498F57D5D7F77:FF9BBE28839651A5:C21574A3E945AF39 bits:0 flags:0
block drbd1: peer E26808C6C8EFE1EA:910498F57D5D7F77:FF9BBE28839651A4:C21574A3E945AF39 bits:0 flags:0
block drbd1: uuid_compare()=100 by rule 90
block drbd1: Split-Brain detected, dropping connection!
block drbd1: helper command: /sbin/drbdadm split-brain minor-1
block drbd1: meta connection shut down by peer.
block drbd1: conn( WFReportParams -> NetworkFailure )
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: helper command: /sbin/drbdadm split-brain minor-1 exit code 0 (0x0)
block drbd1: conn( NetworkFailure -> Disconnecting )
block drbd1: error receiving ReportState, l: 4!
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [26697])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [26719])
block drbd1: data-integrity-alg: <not-used>
block drbd1: drbd_sync_handshake:
block drbd1: self 69E216884FA39818:910498F57D5D7F77:FF9BBE28839651A5:C21574A3E945AF39 bits:0 flags:0
block drbd1: peer E26808C6C8EFE1EA:910498F57D5D7F77:FF9BBE28839651A4:C21574A3E945AF39 bits:0 flags:0
block drbd1: uuid_compare()=100 by rule 90
block drbd1: Split-Brain detected, dropping connection!
block drbd1: helper command: /sbin/drbdadm split-brain minor-1
block drbd1: meta connection shut down by peer.
block drbd1: conn( WFReportParams -> NetworkFailure )
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: helper command: /sbin/drbdadm split-brain minor-1 exit code 0 (0x0)
block drbd1: conn( NetworkFailure -> Disconnecting )
block drbd1: error receiving ReportState, l: 4!
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver


And here's the other machine:

drbd: initialized. Version: 8.3.3rc2 (api:88/proto:86-91)
drbd: srcversion: B9188A246B5353B66BBE441
drbd: registered as block device major 147
drbd: minor_table @ 0xffff880137a197c0
block drbd1: Starting worker thread (from cqueue [1693])
block drbd1: disk( Diskless -> Attaching )
block drbd1: No usable activity log found.
block drbd1: Method to ensure write ordering: barrier
block drbd1: max_segment_size ( = BIO size ) = 32768
block drbd1: drbd_bm_resize called with capacity == 16776632
block drbd1: resync bitmap: bits=2097079 words=32767
block drbd1: size = 8192 MB (8388316 KB)
block drbd1: Writing the whole bitmap, size changed
block drbd1: 8192 MB (2097079 bits) marked out-of-sync by on disk bit-map.
block drbd1: recounting of set bits took additional 0 jiffies
block drbd1: 8192 MB (2097079 bits) marked out-of-sync by on disk bit-map.
block drbd1: disk( Attaching -> Inconsistent )
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [1706])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [1753])
block drbd1: data-integrity-alg: <not-used>
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_sync_handshake:
block drbd1: self 0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:2097079 flags:0
block drbd1: peer 0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:2097842 flags:0
block drbd1: uuid_compare()=0 by rule 10
block drbd1: No resync, but 2097079 bits in bitmap!
block drbd1: peer( Unknown -> Secondary ) conn( WFReportParams -> Connected ) pdsk( DUnknown -> Inconsistent )
block drbd1: peer( Secondary -> Primary ) pdsk( Inconsistent -> UpToDate )
block drbd1: drbd_sync_handshake:
block drbd1: self 0000000000000004:0000000000000000:0000000000000000:0000000000000000 bits:2097079 flags:0
block drbd1: peer C21574A3E945AF39:0000000000000004:0000000000000000:0000000000000000 bits:2097079 flags:0
block drbd1: uuid_compare()=-2 by rule 20
block drbd1: Becoming sync target due to disk states.
block drbd1: Writing the whole bitmap, full sync required after drbd_sync_handshake.
block drbd1: 8192 MB (2097079 bits) marked out-of-sync by on disk bit-map.
block drbd1: conn( Connected -> WFBitMapT )
block drbd1: conn( WFBitMapT -> WFSyncUUID )
block drbd1: helper command: /sbin/drbdadm before-resync-target minor-1
block drbd1: helper command: /sbin/drbdadm before-resync-target minor-1 exit code 0 (0x0)
block drbd1: conn( WFSyncUUID -> SyncTarget )
block drbd1: Began resync as SyncTarget (will sync 8388316 KB [2097079 bits set]).
block drbd1: Resync done (total 295 sec; paused 0 sec; 28432 K/sec)
block drbd1: conn( SyncTarget -> Connected ) disk( Inconsistent -> UpToDate )
block drbd1: helper command: /sbin/drbdadm after-resync-target minor-1
block drbd1: helper command: /sbin/drbdadm after-resync-target minor-1 exit code 0 (0x0)
block drbd1: peer( Primary -> Unknown ) conn( Connected -> Disconnecting ) pdsk( UpToDate -> DUnknown )
block drbd1: short read expecting header on sock: r=-512
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: disk( UpToDate -> Diskless )
block drbd1: drbd_bm_resize called with capacity == 0
block drbd1: worker terminated
block drbd1: Terminating drbd1_worker
block drbd1: Starting worker thread (from cqueue [1693])
block drbd1: disk( Diskless -> Attaching )
block drbd1: No usable activity log found.
block drbd1: Method to ensure write ordering: barrier
block drbd1: max_segment_size ( = BIO size ) = 32768
block drbd1: drbd_bm_resize called with capacity == 16776632
block drbd1: resync bitmap: bits=2097079 words=32767
block drbd1: size = 8192 MB (8388316 KB)
block drbd1: recounting of set bits took additional 1 jiffies
block drbd1: 0 KB (0 bits) marked out-of-sync by on disk bit-map.
block drbd1: disk( Attaching -> UpToDate )
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [1846])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [1854])
block drbd1: data-integrity-alg: <not-used>
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_sync_handshake:
block drbd1: self C21574A3E945AF38:0000000000000000:14642B2C643088A6:0000000000000004 bits:0 flags:0
block drbd1: peer 910498F57D5D7F76:C21574A3E945AF39:14642B2C643088A7:0000000000000004 bits:0 flags:0
block drbd1: uuid_compare()=-1 by rule 50
block drbd1: peer( Unknown -> Secondary ) conn( WFReportParams -> WFBitMapT ) pdsk( DUnknown -> UpToDate )
block drbd1: conn( WFBitMapT -> WFSyncUUID )
block drbd1: helper command: /sbin/drbdadm before-resync-target minor-1
block drbd1: helper command: /sbin/drbdadm before-resync-target minor-1 exit code 0 (0x0)
block drbd1: conn( WFSyncUUID -> SyncTarget ) disk( UpToDate -> Inconsistent )
block drbd1: Began resync as SyncTarget (will sync 0 KB [0 bits set]).
block drbd1: Resync done (total 1 sec; paused 0 sec; 0 K/sec)
block drbd1: conn( SyncTarget -> Connected ) disk( Inconsistent -> UpToDate )
block drbd1: helper command: /sbin/drbdadm after-resync-target minor-1
block drbd1: helper command: /sbin/drbdadm after-resync-target minor-1 exit code 0 (0x0)
block drbd1: role( Secondary -> Primary )
block drbd1: peer( Secondary -> Primary )
block drbd1: peer( Primary -> Unknown ) conn( Connected -> Disconnecting ) pdsk( UpToDate -> DUnknown )
block drbd1: Creating new current UUID
block drbd1: short read expecting header on sock: r=-512
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [1846])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [1961])
block drbd1: data-integrity-alg: <not-used>
block drbd1: Different verify-alg settings. me="sha1" peer=""
block drbd1: conn( WFReportParams -> Disconnecting )
block drbd1: error receiving SyncParam89, l: 132!
block drbd1: meta connection shut down by peer.
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [1846])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [1977])
block drbd1: data-integrity-alg: <not-used>
block drbd1: drbd_sync_handshake:
block drbd1: self E26808C6C8EFE1EB:910498F57D5D7F77:FF9BBE28839651A4:C21574A3E945AF39 bits:0 flags:0
block drbd1: peer 69E216884FA39819:910498F57D5D7F77:FF9BBE28839651A5:C21574A3E945AF39 bits:0 flags:0
block drbd1: uuid_compare()=100 by rule 90
block drbd1: Split-Brain detected, dropping connection!
block drbd1: helper command: /sbin/drbdadm split-brain minor-1
block drbd1: helper command: /sbin/drbdadm split-brain minor-1 exit code 0 (0x0)
block drbd1: conn( WFReportParams -> Disconnecting )
block drbd1: error receiving ReportState, l: 4!
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: role( Primary -> Secondary )
block drbd1: disk( UpToDate -> Diskless )
block drbd1: drbd_bm_resize called with capacity == 0
block drbd1: worker terminated
block drbd1: Terminating drbd1_worker
block drbd1: Starting worker thread (from cqueue [1693])
block drbd1: disk( Diskless -> Attaching )
block drbd1: Found 4 transactions (140 active extents) in activity log.
block drbd1: Method to ensure write ordering: barrier
block drbd1: max_segment_size ( = BIO size ) = 32768
block drbd1: drbd_bm_resize called with capacity == 16776632
block drbd1: resync bitmap: bits=2097079 words=32767
block drbd1: size = 8192 MB (8388316 KB)
block drbd1: recounting of set bits took additional 0 jiffies
block drbd1: 0 KB (0 bits) marked out-of-sync by on disk bit-map.
block drbd1: disk( Attaching -> UpToDate )
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [1992])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [2001])
block drbd1: data-integrity-alg: <not-used>
block drbd1: max_segment_size ( = BIO size ) = 4096
block drbd1: drbd_sync_handshake:
block drbd1: self E26808C6C8EFE1EA:910498F57D5D7F77:FF9BBE28839651A4:C21574A3E945AF39 bits:0 flags:0
block drbd1: peer 69E216884FA39818:910498F57D5D7F77:FF9BBE28839651A5:C21574A3E945AF39 bits:0 flags:0
block drbd1: uuid_compare()=100 by rule 90
block drbd1: Split-Brain detected, dropping connection!
block drbd1: helper command: /sbin/drbdadm split-brain minor-1
block drbd1: helper command: /sbin/drbdadm split-brain minor-1 exit code 0 (0x0)
block drbd1: conn( WFReportParams -> Disconnecting )
block drbd1: error receiving ReportState, l: 4!
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver
block drbd1: conn( StandAlone -> Unconnected )
block drbd1: Starting receiver thread (from drbd1_worker [1992])
block drbd1: receiver (re)started
block drbd1: conn( Unconnected -> WFConnection )
block drbd1: Handshake successful: Agreed network protocol version 91
block drbd1: conn( WFConnection -> WFReportParams )
block drbd1: Starting asender thread (from drbd1_receiver [2012])
block drbd1: data-integrity-alg: <not-used>
block drbd1: drbd_sync_handshake:
block drbd1: self E26808C6C8EFE1EA:910498F57D5D7F77:FF9BBE28839651A4:C21574A3E945AF39 bits:0 flags:0
block drbd1: peer 69E216884FA39818:910498F57D5D7F77:FF9BBE28839651A5:C21574A3E945AF39 bits:0 flags:0
block drbd1: uuid_compare()=100 by rule 90
block drbd1: Split-Brain detected, dropping connection!
block drbd1: helper command: /sbin/drbdadm split-brain minor-1
block drbd1: helper command: /sbin/drbdadm split-brain minor-1 exit code 0 (0x0)
block drbd1: conn( WFReportParams -> Disconnecting )
block drbd1: error receiving ReportState, l: 4!
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver

Thanks!

/mjt



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