[Pacemaker] Pacemaker 1.1.6 order possible bug ?
Tomáš Vavřička
vavricka at ttc.cz
Thu Sep 6 05:41:35 UTC 2012
On 09/05/2012 04:54 PM, Dejan Muhamedagic wrote:
> Hi,
>
> On Wed, Sep 05, 2012 at 03:09:15PM +0200, Tomáš Vavřička wrote:
>> 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:
> There are no resource_set elements in this configuration.
>
> Thanks,
>
> Dejan
Yesterday I posted configuration with already splitted colocations (c1,
c2, c3).
Automatically created resource_set for colocation pg_on_drbd:
colocation pg_on_drbd inf: monitor_cluster ms_toponet:Master postgres
ms_drbd_postgres:Master
<rsc_colocation id="pg_on_drbd" score="INFINITY">
<resource_set id="pg_on_drbd-0">
<resource_ref id="monitor_cluster"/>
</resource_set>
<resource_set id="pg_on_drbd-1" role="Master">
<resource_ref id="ms_toponet"/>
</resource_set>
<resource_set id="pg_on_drbd-2">
<resource_ref id="postgres"/>
</resource_set>
<resource_set id="pg_on_drbd-3" role="Master">
<resource_ref id="ms_drbd_postgres"/>
</resource_set>
</rsc_colocation>
Then I tried:
<rsc_colocation id="pg_on_drbd" score="INFINITY">
<resource_set id="pg_on_drbd-0" role="Master" sequential="true">
<resource_ref id="monitor_cluster"/>
<resource_ref id="ms_toponet"/>
</resource_set>
<resource_set id="pg_on_drbd-1" role="Master" sequential="true">
<resource_ref id="postgres"/>
<resource_ref id="ms_drbd_postgres"/>
</resource_set>
</rsc_colocation>
or
<rsc_colocation id="pg_on_drbd" score="INFINITY">
<resource_set id="pg_on_drbd-0" role="Master" sequential="true">
<resource_ref id="monitor_cluster"/>
<resource_ref id="ms_toponet"/>
<resource_ref id="postgres"/>
<resource_ref id="ms_drbd_postgres"/>
</resource_set>
</rsc_colocation>
None of them helped situation.
>> <?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
>>
>> _______________________________________________
>> 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