[Cluster-devel] [PATCH] dlm_controld.pcmk: Fix membership change judging issue
Tim Serong
tserong at novell.com
Fri May 14 03:04:03 UTC 2010
On 5/14/2010 at 06:19 AM, Andrew Beekhof <andrew at beekhof.net> wrote:
>
> Does the behavior still occur with pacemaker 1.1.2?
>
Yes.
For the record, the most minimal testcase I've managed for this
so far is as follows (substitute "/etc/init.d/corosync start" or
whatever for "rcopenais start" if you're not on something SUSE-based):
1) Configure corosync/openais on two nodes.
Do not start the cluster yet.
2) On one node:
# rm /var/lib/heartbeat/crm/*
# rcopenais start
# while ! crm_mon -1 | grep -qi online; do \
echo -n "." ; sleep 5 ; done
3) Now we have one node online, configure Pacemaker:
# cat <<CONF | crm configure
primitive dlm ocf:pacemaker:controld
primitive clvm ocf:lvm2:clvmd
group g dlm clvm
clone c g meta interleave="true"
property stonith-enabled="false"
property no-quorum-policy="ignore"
commit
CONF
Watch "crm_mon -r" until that clone comes online.
Should only take a few seconds.
4) On the other node:
# rm /var/lib/heartbeat/crm/*
# rcopenais start
The first node will now either wedge up spectacularly, and/or
dlm_recoverd and clvmd will be stuck in D state on both nodes.
Regards,
Tim
--
Tim Serong <tserong at novell.com>
Senior Clustering Engineer, OPS Engineering, Novell Inc.
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