[ClusterLabs] split brain cluster

Richard Korsten richard at rkorsten.nl
Mon Nov 16 09:18:21 EST 2015


Hi Emmanuel,

No stonith is not enabled. And yes i'm on a redhat based system.

Greetings.

Op ma 16 nov. 2015 om 15:09 schreef emmanuel segura <emi2fast at gmail.com>:

>
> http://clusterlabs.org/doc/en-US/Pacemaker/1.1/html/Clusters_from_Scratch/ch08.html
> and
> https://github.com/ClusterLabs/pacemaker/blob/master/doc/pcs-crmsh-quick-ref.md
> anyway you can use pcs config if you are using redhat
>
> 2015-11-16 15:01 GMT+01:00 Richard Korsten <richard at rkorsten.nl>:
> > Hi Emmanuel,
> >
> > I'm not sure, how can i check it?
> >
> > Greetings Richard
> >
> > Op ma 16 nov. 2015 om 14:58 schreef emmanuel segura <emi2fast at gmail.com
> >:
> >>
> >> you configured the stonith?
> >>
> >> 2015-11-16 14:43 GMT+01:00 Richard Korsten <richard at rkorsten.nl>:
> >> > Hello Cluster guru's.
> >> >
> >> > I'm having a bit of trouble with a cluster of ours. After an outage
> of 1
> >> > node it went into a split brain situation where both nodes aren't
> >> > talking to
> >> > each other. Both say the other node is offline. I've tried to get them
> >> > both
> >> > up and running again by stopping and starting the cluster services on
> >> > both
> >> > nodes, one at a time. with out luck.
> >> >
> >> > I've been trying to reproduce the problem with a set of test servers
> but
> >> > i
> >> > can't seem to get it in the same state.
> >> >
> >> > Because of this i'm looking for some help because i'm not that known
> >> > with
> >> > pacemaker/corosync.
> >> >
> >> > this is the output of the command pcs status:
> >> > Cluster name: MXloadbalancer
> >> > Last updated: Mon Nov 16 10:18:44 2015
> >> > Last change: Fri Nov 6 15:35:22 2015
> >> > Stack: corosync
> >> > Current DC: bckilb01 (1) - partition WITHOUT quorum
> >> > Version: 1.1.12-a14efad
> >> > 2 Nodes configured
> >> > 3 Resources configured
> >> >
> >> > Online: [ bckilb01 ]
> >> > OFFLINE: [ bckilb02 ]
> >> >
> >> > Full list of resources:
> >> >  haproxy (systemd:haproxy): Stopped
> >> >
> >> > Resource Group: MXVIP
> >> > ip-192.168.250.200 (ocf::heartbeat:IPaddr2): Stopped
> >> > ip-192.168.250.201 (ocf::heartbeat:IPaddr2): Stopped
> >> >
> >> > PCSD Status:
> >> > bckilb01: Online
> >> > bckilb02: Online
> >> >
> >> > Daemon Status:
> >> > corosync: active/enabled
> >> > pacemaker: active/enabled
> >> > pcsd: active/enabled
> >> >
> >> >
> >> > And the config:
> >> > totem {
> >> > version: 2
> >> > secauth: off
> >> > cluster_name: MXloadbalancer
> >> > transport: udpu }
> >> >
> >> > nodelist {
> >> > node { ring0_addr: bckilb01 nodeid: 1 }
> >> > node { ring0_addr: bckilb02 nodeid: 2 } }
> >> > quorum { provider: corosync_votequorum two_node: 1 }
> >> > logging { to_syslog: yes }
> >> >
> >> > If any has an idea about how to get them working together again please
> >> > let
> >> > me know.
> >> >
> >> > Greetings Richard
> >> >
> >> > _______________________________________________
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> >> >
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> >> >
> >>
> >>
> >>
> >> --
> >>   .~.
> >>   /V\
> >>  //  \\
> >> /(   )\
> >> ^`~'^
> >>
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> >>
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> >
> >
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> >
>
>
>
> --
>   .~.
>   /V\
>  //  \\
> /(   )\
> ^`~'^
>
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