[Pacemaker] Pacemaker 1.1.6 order possible bug ?
Tomáš Vavřička
vavricka at ttc.cz
Wed Sep 5 09:09:15 EDT 2012
On 09/05/2012 11:44 AM, Dejan Muhamedagic wrote:
> On Wed, Sep 05, 2012 at 07:51:35AM +1000, Andrew Beekhof wrote:
>> On Mon, Sep 3, 2012 at 3:41 PM, Tomáš Vavřička <vavricka at ttc.cz> wrote:
>>> Hello,
>>>
>>> Sorry If I send same question twice, but message did not appeared on mailing
>>> list.
>>>
>>> I have a problem with orders in pacemaker 1.1.6 and corosync 1.4.1.
>>>
>>> Order below is working for failover, but it is not working when one cluster
>>> node starts up (drbd stays in Slave state and ms_toponet is started before
>>> DRBD gets promoted).
>>>
>>> order o_start inf: ms_drbd_postgres:promote postgres:start
>>> ms_toponet:promote monitor_cluster:start
>>>
>>> Order below is not working for failover (it kills slave toponet app and
>>> start it again) but it is working correctly when cluster starts up.
>>>
>>> order o_start inf: ms_drbd_postgres:promote postgres:start ms_toponet:start
>>> ms_toponet:promote monitor_cluster:start
>> I would recommend breaking this into "basic" constraints.
>> The shell syntax for constraint sets has been a source of confusion for a while.
> Nothing's wrong with the shell syntax here. I believe that this
> has been discussed before. When in doubt what the shell does,
> just use "show xml".
crm configure show xml output:
<?xml version="1.0" ?>
<cib admin_epoch="0" cib-last-written="Wed Sep 5 07:56:52 2012"
crm_feature_set="3.0.5" dc-uuid="toponet30" epoch="28" have-quorum="1"
num_updates="119" update-client="cibadmin" updat
e-origin="toponet31" update-user="root" validate-with="pacemaker-1.2">
<configuration>
<crm_config>
<cluster_property_set id="cib-bootstrap-options">
<nvpair id="cib-bootstrap-options-dc-version" name="dc-version"
value="1.1.6-b988976485d15cb702c9307df55512d323831a5e"/>
<nvpair id="cib-bootstrap-options-cluster-infrastructure"
name="cluster-infrastructure" value="openais"/>
<nvpair id="cib-bootstrap-options-expected-quorum-votes"
name="expected-quorum-votes" value="2"/>
<nvpair id="cib-bootstrap-options-no-quorum-policy"
name="no-quorum-policy" value="ignore"/>
<nvpair id="cib-bootstrap-options-stonith-enabled"
name="stonith-enabled" value="true"/>
<nvpair id="cib-bootstrap-options-last-lrm-refresh"
name="last-lrm-refresh" value="1346417427"/>
</cluster_property_set>
</crm_config>
<nodes>
<node id="toponet31" type="normal" uname="toponet31"/>
<node id="toponet30" type="normal" uname="toponet30"/>
</nodes>
<resources>
<group id="postgres">
<primitive class="ocf" id="pg_fs" provider="heartbeat"
type="Filesystem">
<instance_attributes id="pg_fs-instance_attributes">
<nvpair id="pg_fs-instance_attributes-device" name="device"
value="/dev/drbd0"/>
<nvpair id="pg_fs-instance_attributes-directory"
name="directory" value="/var/lib/pgsql"/>
<nvpair id="pg_fs-instance_attributes-fstype" name="fstype"
value="ext3"/>
</instance_attributes>
</primitive>
<primitive class="ocf" id="PGIP" provider="heartbeat"
type="IPaddr2">
<instance_attributes id="PGIP-instance_attributes">
<nvpair id="PGIP-instance_attributes-ip" name="ip"
value="192.168.100.3"/>
<nvpair id="PGIP-instance_attributes-cidr_netmask"
name="cidr_netmask" value="29"/>
</instance_attributes>
<operations>
<op id="PGIP-monitor-5s" interval="5s" name="monitor"/>
</operations>
</primitive>
<primitive class="ocf" id="postgresql" provider="heartbeat"
type="pgsql">
<operations>
<op id="postgresql-start-0" interval="0" name="start"
timeout="80s"/>
<op id="postgresql-stop-0" interval="0" name="stop"
timeout="60s"/>
<op id="postgresql-monitor-10s" interval="10s"
name="monitor" timeout="10s">
<instance_attributes
id="postgresql-monitor-10s-instance_attributes">
<nvpair
id="postgresql-monitor-10s-instance_attributes-depth" name="depth"
value="0"/>
</instance_attributes>
</op>
</operations>
</primitive>
</group>
<primitive class="ocf" id="monitor_cluster" provider="heartbeat"
type="monitor_cluster">
<operations>
<op id="monitor_cluster-monitor-30s" interval="30s"
name="monitor"/>
<op id="monitor_cluster-start-0" interval="0" name="start"
timeout="30s"/>
</operations>
<meta_attributes id="monitor_cluster-meta_attributes">
<nvpair id="monitor_cluster-meta_attributes-target-role"
name="target-role" value="Started"/>
</meta_attributes>
</primitive>
<master id="ms_toponet">
<meta_attributes id="ms_toponet-meta_attributes">
<nvpair id="ms_toponet-meta_attributes-master-max"
name="master-max" value="1"/>
<nvpair id="ms_toponet-meta_attributes-master-node-max"
name="master-node-max" value="1"/>
<nvpair id="ms_toponet-meta_attributes-clone-max"
name="clone-max" value="2"/>
<nvpair id="ms_toponet-meta_attributes-clone-node-max"
name="clone-node-max" value="1"/>
<nvpair id="ms_toponet-meta_attributes-target-role"
name="target-role" value="Master"/>
</meta_attributes>
<primitive class="ocf" id="toponet" provider="heartbeat"
type="toponet">
<operations>
<op id="toponet-start-0" interval="0" name="start"
timeout="180s"/>
<op id="toponet-stop-0" interval="0" name="stop"
timeout="60s"/>
<op id="toponet-monitor-10s" interval="10s" name="monitor"
on-fail="standby" role="Master" timeout="20s"/>
<op id="toponet-monitor-20s" interval="20s" name="monitor"
role="Slave" timeout="40s"/>
<op id="toponet-promote-0" interval="0" name="promote"
timeout="120s"/>
<op id="toponet-demote-0" interval="0" name="demote"
timeout="120s"/>
</operations>
</primitive>
</master>
<master id="ms_drbd_postgres">
<meta_attributes id="ms_drbd_postgres-meta_attributes">
<nvpair id="ms_drbd_postgres-meta_attributes-master-max"
name="master-max" value="1"/>
<nvpair id="ms_drbd_postgres-meta_attributes-master-node-max"
name="master-node-max" value="1"/>
<nvpair id="ms_drbd_postgres-meta_attributes-clone-max"
name="clone-max" value="2"/>
<nvpair id="ms_drbd_postgres-meta_attributes-clone-node-max"
name="clone-node-max" value="1"/>
<nvpair id="ms_drbd_postgres-meta_attributes-notify"
name="notify" value="true"/>
<nvpair id="ms_drbd_postgres-meta_attributes-target-role"
name="target-role" value="Master"/>
</meta_attributes>
<primitive class="ocf" id="drbd_postgres" provider="linbit"
type="drbd">
<instance_attributes id="drbd_postgres-instance_attributes">
<nvpair
id="drbd_postgres-instance_attributes-drbd_resource"
name="drbd_resource" value="postgres"/>
</instance_attributes>
<operations>
<op id="drbd_postgres-start-0" interval="0" name="start"
timeout="240s"/>
<op id="drbd_postgres-stop-0" interval="0" name="stop"
timeout="120s"/>
<op id="drbd_postgres-monitor-5s" interval="5s"
name="monitor" role="Master" timeout="10s"/>
<op id="drbd_postgres-monitor-10s" interval="10s"
name="monitor" role="Slave" timeout="20s"/>
</operations>
</primitive>
</master>
<primitive class="stonith" id="st_primary" type="external/xen0">
<operations>
<op id="st_primary-start-0" interval="0" name="start"
timeout="60s"/>
</operations>
<instance_attributes id="st_primary-instance_attributes">
<nvpair id="st_primary-instance_attributes-hostlist"
name="hostlist" value="toponet31:/etc/xen/vm/toponet31"/>
<nvpair id="st_primary-instance_attributes-dom0" name="dom0"
value="172.16.103.54"/>
</instance_attributes>
</primitive>
<primitive class="stonith" id="st_secondary" type="external/xen0">
<operations>
<op id="st_secondary-start-0" interval="0" name="start"
timeout="60s"/>
</operations>
<instance_attributes id="st_secondary-instance_attributes">
<nvpair id="st_secondary-instance_attributes-hostlist"
name="hostlist" value="toponet30:/etc/xen/vm/toponet30"/>
<nvpair id="st_secondary-instance_attributes-dom0"
name="dom0" value="172.16.103.54"/>
</instance_attributes>
</primitive>
</resources>
<constraints>
<rsc_colocation id="c1" rsc="monitor_cluster" score="INFINITY"
with-rsc="ms_toponet" with-rsc-role="Master"/>
<rsc_location id="master-prefer-node1" node="toponet30"
rsc="postgres" score="100"/>
<rsc_location id="loc_st_sec" node="toponet30" rsc="st_secondary"
score="-INFINITY"/>
<rsc_order first="ms_toponet" first-action="promote" id="o4"
score="INFINITY" then="monitor_cluster" then-action="start"/>
<rsc_colocation id="c3" rsc="postgres" score="INFINITY"
with-rsc="ms_drbd_postgres" with-rsc-role="Master"/>
<rsc_order first="ms_toponet" first-action="start" id="o3"
score="INFINITY" then="ms_toponet" then-action="promote"/>
<rsc_colocation id="c2" rsc="ms_toponet" rsc-role="Master"
score="INFINITY" with-rsc="postgres"/>
<rsc_location id="loc_st_pri" node="toponet31" rsc="st_primary"
score="-INFINITY"/>
<rsc_order first="ms_drbd_postgres" first-action="promote"
id="o1" score="INFINITY" then="postgres" then-action="start"/>
<rsc_order first="postgres" first-action="start" id="o2"
score="INFINITY" then="ms_toponet" then-action="start"/>
</constraints>
<rsc_defaults>
<meta_attributes id="rsc-options">
<nvpair id="rsc-options-resource-stickiness"
name="resource-stickiness" value="5000"/>
</meta_attributes>
</rsc_defaults>
</configuration>
</cib>
>> order o1 inf: ms_drbd_postgres:promote postgres:start
>> order o2 inf: postgres:start ms_toponet:start
>> order o3 inf: ms_toponet:start ms_toponet:promote
>> order o4 inf: ms_toponet:promote monitor_cluster:start
>>
>> If you still have problems with the expanded form, let us know.
> Resource sets are not an issue in order constraints, but rather
> in collocations.
>
> Thanks,
>
> Dejan
>
>>> I want to the pacemaker to act as in 1.0.12 version.
>>> * when toponet master app is killed, move postgres resource to other node
>>> and promote ms_toponet and ms_drbd_postgres to Master
>>> * when one node is starting promote DRBD to master is is UpToDate
>>>
>>> Am I doing something wrong?
>>>
>>> It looks to me pacemaker ignores some orders (pacemaker should wait for DRBD
>>> promotion when starting toponet app, but toponet app is started right after
>>> DRBD start (slave)). I tried to solve this by different orders with
>>> combination symmetrical=false, split orders, different orders for start and
>>> stop, but no success at all (seems to me like completely ignoring
>>> symmetrical=false directive).
>>>
>>> Pacemaker 1.1.7 is not working for me, because it has broken on-fail
>>> directive.
>>>
>>> crm_mon output:
>>>
>>> ============
>>> Last updated: Fri Aug 31 14:51:11 2012
>>> Last change: Fri Aug 31 14:50:27 2012 by hacluster via crmd on toponet30
>>> Stack: openais
>>> Current DC: toponet30 - partition WITHOUT quorum
>>> Version: 1.1.6-b988976485d15cb702c9307df55512d323831a5e
>>> 2 Nodes configured, 2 expected votes
>>> 10 Resources configured.
>>> ============
>>>
>>> Online: [ toponet30 toponet31 ]
>>>
>>> st_primary (stonith:external/xen0): Started toponet30
>>> st_secondary (stonith:external/xen0): Started toponet31
>>> Master/Slave Set: ms_drbd_postgres
>>> Masters: [ toponet30 ]
>>> Slaves: [ toponet31 ]
>>> Resource Group: postgres
>>> pg_fs (ocf::heartbeat:Filesystem): Started toponet30
>>> PGIP (ocf::heartbeat:IPaddr2): Started toponet30
>>> postgresql (ocf::heartbeat:pgsql): Started toponet30
>>> monitor_cluster (ocf::heartbeat:monitor_cluster): Started toponet30
>>> Master/Slave Set: ms_toponet
>>> Masters: [ toponet30 ]
>>> Slaves: [ toponet31 ]
>>>
>>> configuration:
>>>
>>> node toponet30
>>> node toponet31
>>> primitive PGIP ocf:heartbeat:IPaddr2 \
>>> params ip="192.168.100.3" cidr_netmask="29" \
>>> op monitor interval="5s"
>>> primitive drbd_postgres ocf:linbit:drbd \
>>> params drbd_resource="postgres" \
>>> op start interval="0" timeout="240s" \
>>> op stop interval="0" timeout="120s" \
>>> op monitor interval="5s" role="Master" timeout="10s" \
>>> op monitor interval="10s" role="Slave" timeout="20s"
>>> primitive monitor_cluster ocf:heartbeat:monitor_cluster \
>>> op monitor interval="30s" \
>>> op start interval="0" timeout="30s" \
>>> meta target-role="Started"
>>> primitive pg_fs ocf:heartbeat:Filesystem \
>>> params device="/dev/drbd0" directory="/var/lib/pgsql" fstype="ext3"
>>> primitive postgresql ocf:heartbeat:pgsql \
>>> op start interval="0" timeout="80s" \
>>> op stop interval="0" timeout="60s" \
>>> op monitor interval="10s" timeout="10s" depth="0"
>>> primitive st_primary stonith:external/xen0 \
>>> op start interval="0" timeout="60s" \
>>> params hostlist="toponet31:/etc/xen/vm/toponet31"
>>> dom0="172.16.103.54"
>>> primitive st_secondary stonith:external/xen0 \
>>> op start interval="0" timeout="60s" \
>>> params hostlist="toponet30:/etc/xen/vm/toponet30"
>>> dom0="172.16.103.54"
>>> primitive toponet ocf:heartbeat:toponet \
>>> op start interval="0" timeout="180s" \
>>> op stop interval="0" timeout="60s" \
>>> op monitor interval="10s" role="Master" timeout="20s"
>>> on-fail="standby" \
>>> op monitor interval="20s" role="Slave" timeout="40s" \
>>> op promote interval="0" timeout="120s" \
>>> op demote interval="0" timeout="120s"
>>> group postgres pg_fs PGIP postgresql
>>> ms ms_drbd_postgres drbd_postgres \
>>> meta master-max="1" master-node-max="1" clone-max="2"
>>> clone-node-max="1" notify="true" target-role="Master"
>>> ms ms_toponet toponet \
>>> meta master-max="1" master-node-max="1" clone-max="2"
>>> clone-node-max="1" target-role="Master"
>>> location loc_st_pri st_primary -inf: toponet31
>>> location loc_st_sec st_secondary -inf: toponet30
>>> location master-prefer-node1 postgres 100: toponet30
>>> colocation pg_on_drbd inf: monitor_cluster ms_toponet:Master postgres
>>> ms_drbd_postgres:Master
>>> order o_start inf: ms_drbd_postgres:start ms_drbd_postgres:promote
>>> postgres:start ms_toponet:start ms_toponet:promote monitor_cluster:start
>>> property $id="cib-bootstrap-options" \
>>> dc-version="1.1.6-b988976485d15cb702c9307df55512d323831a5e" \
>>> cluster-infrastructure="openais" \
>>> expected-quorum-votes="2" \
>>> no-quorum-policy="ignore" \
>>> stonith-enabled="true"
>>> rsc_defaults $id="rsc-options" \
>>> resource-stickiness="5000"
>>>
>>> _______________________________________________
>>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>>> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>>>
>>> Project Home: http://www.clusterlabs.org
>>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>>> Bugs: http://bugs.clusterlabs.org
>> _______________________________________________
>> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
>> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>>
>> Project Home: http://www.clusterlabs.org
>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>> Bugs: http://bugs.clusterlabs.org
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org
More information about the Pacemaker
mailing list