[Pacemaker] clone ip definition and location stops myresources...
Koch, Sebastian
Sebastian.Koch at netzwerk.de
Thu May 20 08:40:41 EDT 2010
Thanks for your hints. I had the same issue and your tips nearly
resolved it for me. But i got a question. I setted the default timeout
and afterwards the pingd resource started to work as expected. I had a
IPTABLES Rule dropping icmp on one node and recieved:
============
Last updated: Thu May 20 14:30:20 2010
Stack: openais
Current DC: test01-node1 - partition with quorum
Version: 1.0.8-2c98138c2f070fcb6ddeab1084154cffbf44ba75
2 Nodes configured, 3 expected votes
3 Resources configured.
============
Online: [ test01-node2 test01-node1 ]
Full list of resources:
Master/Slave Set: ms_drbd_mysql0
Masters: [ test01-node1 ]
Slaves: [ test01-node2 ]
Resource Group: grp_MySQL
res_Filesystem (ocf::heartbeat:Filesystem): Started
test01-node1
res_ClusterIP (ocf::heartbeat:IPaddr2): Started
test01-node1
res_MySQL (lsb:mysql): Started test01-node1
res_Apache (lsb:apache2): Started test01-node1
Clone Set: cl-pinggw
Started: [ test01-node2 test01-node1 ]
Migration summary:
* Node test01-node1: pingd=100
* Node test01-node2: pingd=0
When i remove the dropping iptables rule with IPTABLES -F the ping works
again BUT the Migration summary doesn't change. I understood it like
this: does the pingd fail the node gets a value like the multiplier (100
in my case). I thought: okay the pingd resource works on both nodes
again so therefore both should have a value of = 100. Am i right or did
i understand it wrong?
Here is my working config:
node test01-node1 \
attributes standby="off"
node test01-node2 \
attributes standby="off"
primitive drbd_test0 ocf:linbit:drbd \
params drbd_resource="test0" \
operations $id="drbd_test0-operations"
primitive pinggw ocf:pacemaker:pingd \
params host_list="10.1.1.162" multiplier="100" \
op monitor interval="10"
primitive res_Apache lsb:apache2 \
operations $id="res_Apache-operations" \
op stop interval="0" timeout="15" \
op monitor interval="15" timeout="15" start-delay="15" \
op status interval="0" timeout="15" \
op start interval="0" timeout="15" \
meta target-role="Started" is-managed="true"
primitive res_ClusterIP ocf:heartbeat:IPaddr2 \
params iflabel="ClusterIP" ip="10.1.1.175" \
operations $id="res_ClusterIP_1-operations" \
op stop interval="0" timeout="100" \
op monitor interval="10" timeout="20" start-delay="0" \
op status interval="10" timeout="20" \
op start interval="0" timeout="90"
primitive res_Filesystem ocf:heartbeat:Filesystem \
params fstype="xfs" directory="/mnt/cluster" device="/dev/drbd0"
\
operations $id="res_Filesystem-operations" \
op stop interval="0" timeout="60" \
op monitor interval="20" timeout="40" start-delay="0" \
op start interval="0" timeout="60"
primitive res_MySQL lsb:mysql \
operations $id="res_MySQL-operations" \
op stop interval="0" timeout="15" \
op monitor interval="15" timeout="15" start-delay="15" \
op status interval="0" timeout="15" \
op start interval="0" timeout="15"
group grp_MySQL res_Filesystem res_ClusterIP res_MySQL res_Apache \
meta target-role="Started"
ms ms_drbd_mysql0 drbd_test0 \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true"
clone cl-pinggw pinggw \
meta globally-unique="false"
location cli-prefer-grp_MySQL grp_MySQL \
rule $id="cli-prefer-rule-grp_MySQL" inf: #uname eq test01-node2
location grp_MySQL-with-pinggw grp_MySQL \
rule $id="grp_MySQL-with-pinggw-rule-1" -inf: not_defined pingd
or pingd lte 0
colocation col_drbd_on_mysql inf: grp_MySQL ms_drbd_mysql0:Master
order mysql_after_drbd inf: ms_drbd_mysql0:promote grp_MySQL:start
property $id="cib-bootstrap-options" \
expected-quorum-votes="3" \
stonith-enabled="false" \
no-quorum-policy="ignore" \
dc-version="1.0.8-2c98138c2f070fcb6ddeab1084154cffbf44ba75" \
cluster-infrastructure="openais" \
last-lrm-refresh="1274352045" \
symmetric-cluster="true" \
default-action-timeout="120s"
rsc_defaults $id="rsc-options" \
resource-stickiness="100"
Thanks in advance.
Regards
Sebastian
Von: Vadym Chepkov [mailto:vchepkov at gmail.com]
Gesendet: Dienstag, 11. Mai 2010 19:56
An: The Pacemaker cluster resource manager
Betreff: Re: [Pacemaker] clone ip definition and location stops
myresources...
The is no "default" unless it's set, that's why crm complains
On Tue, May 11, 2010 at 12:41 PM, Gianluca Cecchi
<gianluca.cecchi at gmail.com> wrote:
On Tue, May 11, 2010 at 5:47 PM, Vadym Chepkov <vchepkov at gmail.com>
wrote:
pingd is a daemon with is running all the time and does it job
you still need to define monitor operation though, what if the daemon
dies?
op monitor just have a different meaning for ping and pingd.
with pingd - monitor daemon
with ping - monitor connectivity
as for warnings:
crm configure property default-action-timeout="120s"
Thanks again!
Now it is more clear.
Only doubt: why pacemaker doesn't set directly as a default 120s for
timeout?
Any drawbacks in setting it to 120?
Also, with
crm configure show
I can see
property $id="cib-bootstrap-options" \
dc-version="1.0.8-9881a7350d6182bae9e8e557cf20a3cc5dac3ee7"
\
cluster-infrastructure="openais" \
expected-quorum-votes="2" \
stonith-enabled="false" \
no-quorum-policy="ignore" \
last-lrm-refresh="1273484758"
rsc_defaults $id="rsc-options" \
resource-stickiness="1000"
Any way to see what is the default value for "default-action-timeout"
parameter that I'm going to change (I presume it is 20s from the
warnings I received) and for other ones for example that are not shown
with the show command?
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