Hello,
I had to restore a VM snapshot of a DRBD machine today to revert a catastrophic
DB update. However, after restoring the snapshot, I can't seem to get the two
nodes to connect. I have already followed the documented recommendations for
split-brain recovery, and the results are shown below.
This is my primary:
[root@MCM5-DB4 ~]# cat /proc/drbd
version: 8.3.16 (api:88/proto:86-97)
GIT-hash: a798fa7e274428a357657fb52f0ecf40192c1985 build by phil@Build64R6,
2014-11-24 14:51:37
0: cs:StandAlone ro:Primary/Unknown ds:UpToDate/DUnknown r-----
ns:0 nr:0 dw:3136608 dr:9182265 al:31009 bm:15031 lo:0 pe:0 ua:0 ap:0 ep:1
wo:f oos:1191752
And from /var/log/messages on the primary:
Dec 5 10:20:07 localhost kernel: block drbd0: conn( StandAlone -> Unconnected )
Dec 5 10:20:07 localhost kernel: block drbd0: Starting receiver thread (from
drbd0_worker [1629])
Dec 5 10:20:07 localhost kernel: block drbd0: receiver (re)started
Dec 5 10:20:07 localhost kernel: block drbd0: conn( Unconnected ->
WFConnection )
Dec 5 10:20:07 localhost kernel: block drbd0: Handshake successful: Agreed
network protocol version 97
Dec 5 10:20:07 localhost kernel: block drbd0: Peer authenticated using 20
bytes of 'sha1' HMAC
Dec 5 10:20:07 localhost kernel: block drbd0: conn( WFConnection ->
WFReportParams )
Dec 5 10:20:07 localhost kernel: block drbd0: Starting asender thread (from
drbd0_receiver [6450])
Dec 5 10:20:07 localhost kernel: block drbd0: data-integrity-alg: <not-used>
Dec 5 10:20:07 localhost kernel: block drbd0: drbd_sync_handshake:
Dec 5 10:20:07 localhost kernel: block drbd0: self
5E31C2DC5B55B225:D72E026811DB74F3:20B3ACD5A61DC8E5:20B2ACD5A61DC8E5 bits:297938
flags:0
Dec 5 10:20:07 localhost kernel: block drbd0: peer
A98F08F32D2FCB34:0000000000000000:5E32C2DC5B55B224:5E31C2DC5B55B225
bits:183494167 flags:1
Dec 5 10:20:07 localhost kernel: block drbd0: uuid_compare()=-2 by rule 60
Dec 5 10:20:07 localhost kernel: block drbd0: I shall become SyncTarget, but I
am primary!
Dec 5 10:20:07 localhost kernel: block drbd0: conn( WFReportParams ->
Disconnecting )
Dec 5 10:20:07 localhost kernel: block drbd0: error receiving ReportState, l:
4!
Dec 5 10:20:07 localhost kernel: block drbd0: asender terminated
Dec 5 10:20:07 localhost kernel: block drbd0: Terminating drbd0_asender
Dec 5 10:20:07 localhost kernel: block drbd0: Connection closed
Dec 5 10:20:07 localhost kernel: block drbd0: conn( Disconnecting ->
StandAlone )
Dec 5 10:20:07 localhost kernel: block drbd0: receiver terminated
Dec 5 10:20:07 localhost kernel: block drbd0: Terminating drbd0_receiver
And this is my secondary:
[root@MCM5-DB5 log]# cat /proc/drbd
version: 8.3.16 (api:88/proto:86-97)
GIT-hash: a798fa7e274428a357657fb52f0ecf40192c1985 build by phil@Build64R6,
2014-11-24 14:51:37
0: cs:WFConnection ro:Secondary/Unknown ds:UpToDate/DUnknown C r----s
ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:733976668
With the log:
Dec 5 10:20:07 localhost kernel: block drbd0: Handshake successful: Agreed
network protocol version 97
Dec 5 10:20:07 localhost kernel: block drbd0: Peer authenticated using 20
bytes of 'sha1' HMAC
Dec 5 10:20:07 localhost kernel: block drbd0: conn( WFConnection ->
WFReportParams )
Dec 5 10:20:07 localhost kernel: block drbd0: Starting asender thread (from
drbd0_receiver [2171])
Dec 5 10:20:07 localhost kernel: block drbd0: data-integrity-alg: <not-used>
Dec 5 10:20:07 localhost kernel: block drbd0: drbd_sync_handshake:
Dec 5 10:20:07 localhost kernel: block drbd0: self
A98F08F32D2FCB34:0000000000000000:5E32C2DC5B55B224:5E31C2DC5B55B225
bits:183494167 flags:0
Dec 5 10:20:07 localhost kernel: block drbd0: peer
5E31C2DC5B55B225:D72E026811DB74F3:20B3ACD5A61DC8E5:20B2ACD5A61DC8E5 bits:297938
flags:2
Dec 5 10:20:07 localhost kernel: block drbd0: uuid_compare()=2 by rule 80
Dec 5 10:20:07 localhost kernel: block drbd0: Writing the whole bitmap, full
sync required after drbd_sync_handshake.
Dec 5 10:20:07 localhost kernel: block drbd0: meta connection shut down by
peer.
Dec 5 10:20:07 localhost kernel: block drbd0: conn( WFReportParams ->
NetworkFailure )
Dec 5 10:20:07 localhost kernel: block drbd0: asender terminated
Dec 5 10:20:07 localhost kernel: block drbd0: Terminating drbd0_asender
Dec 5 10:20:08 localhost kernel: block drbd0: bitmap WRITE of 5600 pages took
183 jiffies
Dec 5 10:20:08 localhost kernel: block drbd0: 700 GB (183494167 bits) marked
out-of-sync by on disk bit-map.
Dec 5 10:20:08 localhost kernel: block drbd0: error receiving ReportState, l:
4!
Dec 5 10:20:08 localhost kernel: block drbd0: Connection closed
Dec 5 10:20:08 localhost kernel: block drbd0: conn( NetworkFailure ->
Unconnected )
Dec 5 10:20:08 localhost kernel: block drbd0: receiver terminated
Dec 5 10:20:08 localhost kernel: block drbd0: Restarting drbd0_receiver
Dec 5 10:20:08 localhost kernel: block drbd0: receiver (re)started
Dec 5 10:20:08 localhost kernel: block drbd0: conn( Unconnected ->
WFConnection )
Can anyone tell me how to get my Primary to connect and push its data over to
the secondary?
Thanks!
Tyler Hains
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