Hello all,
I have two nginx nodes running nginx version: nginx/1.11.10
(nginx-plus-r12-p2), Corosync Cluster Engine, version '2.3.5',
and Pacemaker 1.1.14 on Ubuntu 16.04.1 LTS.
This cluster is intended to replace our old nginx cluster running on 14.04
and older versions of corosync/pacemaker.
On initial set up of the cluster everything works wonderfully and I can put
a node on standby and failover works as expected. However if I reboot one
of the nodes the cluster gets into a split situation where each node thinks
the other node is offline. I've tried numerous things to correct it but I
cannot get them to both show as online.
crm status from nginx1:
root@prod-nginx1:~# crm status
Online: [ prod-nginx1 ]
OFFLINE: [ prod-nginx2 ]
Full list of resources:
ClusterIP (ocf::heartbeat:IPaddr2): Started prod-nginx1
ClusterIPRestricted (ocf::heartbeat:IPaddr2): Started prod-nginx1
Nginx (ocf::heartbeat:nginx): Started prod-nginx1
and crm status from nginx2:
root@prod-nginx2:~# crm status
Online: [ prod-nginx2 ]
OFFLINE: [ prod-nginx1 ]
Full list of resources:
ClusterIP (ocf::heartbeat:IPaddr2): Started prod-nginx2
ClusterIPRestricted (ocf::heartbeat:IPaddr2): Started prod-nginx2
Nginx (ocf::heartbeat:nginx): Started prod-nginx2
I've tried forcing the nodes back online, restarting both pacemaker and
corosync on both servers, but nothing seems to work. I do not have this
issue with corosync/pacemaker on ubuntu 14.04.
Here is the current corosync.conf which works on ubuntu 14.04
totem {
version: 2
secauth: on
cluster_name: pacemaker1
transport: udpu
token: 1000
token_retransmits_before_loss_const: 10
}
nodelist {
node {
ring0_addr: 10.10.16.100
nodeid: 101
}
node {
ring0_addr: 10.10.16.101
nodeid: 102
}
}
quorum {
provider: corosync_votequorum
two_node: 1
wait_for_all: 1
last_man_standing: 1
auto_tie_breaker: 0
}
logging {
# Log the source file and line where messages are being
# generated. When in doubt, leave off. Potentially useful for
# debugging.
fileline: off
# Log to standard error. When in doubt, set to no. Useful when
# running in the foreground (when invoking "corosync -f")
to_stderr: no
# Log to a log file. When set to "no", the "logfile" option
# must not be set.
to_logfile: yes
logfile: /var/log/corosync/corosync.log
# Log to the system log daemon. When in doubt, set to yes.
to_syslog: yes
# Log debug messages (very verbose). When in doubt, leave off.
debug: off
# Log messages with time stamps. When in doubt, set to on
# (unless you are only logging to syslog, where double
# timestamps can be annoying).
timestamp: on
logger_subsys {
subsys: QUORUM
debug: off
}
}
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