Hi All,
Recently I had split brain onto my cluster. There was a not a big issue,
but I still haven't found any reason of this glitch. I got in my log
dile next:
Sep 20 18:44:35 infplsm004 <kern.info> kernel: VMCIUtil: Updating
context id from 0x775d2835 to 0x775d2835 on event 0.
Sep 20 18:44:35 infplsm004 <kern.err> kernel: block drbd2: sock_recvmsg
returned -104
Sep 20 18:44:35 infplsm004 <kern.info> kernel: block drbd2: peer(
Primary -> Unknown ) conn( Connected -> NetworkFailure ) pdsk( UpToDate
-> DUnknown )
Sep 20 18:44:35 infplsm004 <kern.info> kernel: block drbd2: asender
terminated
Sep 20 18:44:35 infplsm004 <kern.info> kernel: block drbd2: Terminating
asender thread
Sep 20 18:44:35 infplsm004 <kern.err> kernel: block drbd2: short read
expecting header on sock: r=-512
Sep 20 18:44:35 infplsm004 <kern.info> kernel: block drbd2: Creating new
current UUID
Sep 20 18:44:36 infplsm004 <kern.info> kernel: block drbd2: Connection
closed
Sep 20 18:44:36 infplsm004 <kern.info> kernel: block drbd2: conn(
NetworkFailure -> Unconnected )
Sep 20 18:44:36 infplsm004 <kern.info> kernel: block drbd2: receiver
terminated
Sep 20 18:44:36 infplsm004 <kern.info> kernel: block drbd2: Restarting
receiver thread
Sep 20 18:44:36 infplsm004 <kern.info> kernel: block drbd2: receiver
(re)started
Sep 20 18:44:36 infplsm004 <kern.info> kernel: block drbd2: conn(
Unconnected -> WFConnection )
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: Handshake
successful: Agreed network protocol version 94
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: conn(
WFConnection -> WFReportParams )
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: Starting
asender thread (from drbd2_receiver [11360])
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2:
data-integrity-alg: <not-used>
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2:
drbd_sync_handshake:
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: self
AD9C020C7BA6E149:51B8CD59E67A7227:01C987FB5F84C0D1:30241D96D32A31CF
bits:1 flags:0
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: peer
A2111F74640A099D:51B8CD59E67A7227:01C987FB5F84C0D0:30241D96D32A31CF
bits:0 flags:0
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2:
uuid_compare()=100 by rule 90
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: helper
command: /sbin/drbdadm initial-split-brain minor-2
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: helper
command: /sbin/drbdadm initial-split-brain minor-2 exit code 0 (0x0)
Sep 20 18:44:38 infplsm004 <kern.alert> kernel: block drbd2: Split-Brain
detected but unresolved, dropping connection!
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: helper
command: /sbin/drbdadm split-brain minor-2
Sep 20 18:44:38 infplsm004 <kern.err> kernel: block drbd2: meta
connection shut down by peer.
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: conn(
WFReportParams -> NetworkFailure )
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: asender
terminated
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: Terminating
asender thread
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: helper
command: /sbin/drbdadm split-brain minor-2 exit code 0 (0x0)
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: conn(
NetworkFailure -> Disconnecting )
Sep 20 18:44:38 infplsm004 <kern.err> kernel: block drbd2: error
receiving ReportState, l: 4!
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: Connection
closed
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: conn(
Disconnecting -> StandAlone )
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: receiver
terminated
Sep 20 18:44:38 infplsm004 <kern.info> kernel: block drbd2: Terminating
receiver thread
I'd like to stress your attention on first two rows. DRBD socket
received messages is code -104. What's it for? Where I can get info
about error codes?
Thank you in advance,
Ivan
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