[ClusterLabs] How to setup a simple master/slave cluster in two nodes without stonith resource

Tue Apr 3 00:00:04 EDT 2018

03.04.2018 05:07, 范国腾 пишет:
> Hello,
> 
> I want to setup a cluster in two nodes. One is master and the other is slave. I don’t need the fencing device because my internal network is stable.  I use the following command to create the resource, but all of the two nodes are slave and cluster don’t promote it to master. Could you please help check if there is anything wrong with my configuration?
> 
> pcs property set stonith-enabled=false;
> pcs resource create pgsqld ocf:heartbeat:pgsqlms bindir=/usr/local/pgsql/bin pgdata=/home/postgres/data op start timeout=600s op stop timeout=60s op promote timeout=300s op demote timeout=120s op monitor interval=15s timeout=100s role="Master" op monitor interval=16s timeout=100s role="Slave" op notify timeout=60s;pcs resource master pgsql-ha pgsqld notify=true interleave=true;
> 
> The status is as below:
> 
> [root at node1 ~]# pcs status
> Cluster name: cluster_pgsql
> Stack: corosync
> Current DC: node2-1 (version 1.1.15-11.el7-e174ec8) - partition with quorum
> Last updated: Mon Apr  2 21:51:57 2018          Last change: Mon Apr  2 21:32:22 2018 by hacluster via crmd on node2-1
> 
> 2 nodes and 3 resources configured
> 
> Online: [ node1-1 node2-1 ]
> 
> Full list of resources:
> 
> Master/Slave Set: pgsql-ha [pgsqld]
>      Slaves: [ node1-1 node2-1 ]
> pgsql-master-ip        (ocf::heartbeat:IPaddr2):       Stopped
> 
> Daemon Status:
>   corosync: active/disabled
>   pacemaker: active/disabled
>   pcsd: active/enabled
> 
> When I execute pcs resource cleanup in one node, there is always one node print the following waring message in the /var/log/messages. But the other nodes’ log show no error. The resource log（pgsqlms） show the monitor action could return 0 but why the crmd log show failed?
> 
> Apr  2 21:53:09 node2 crmd[2425]: warning: No reason to expect node 1 to be down
> Apr  2 21:53:09 node2 crmd[2425]:  notice: State transition S_IDLE -> S_POLICY_ENGINE | input=I_PE_CALC cause=C_FSA_INTERNAL origin=abort_transition_graph
> Apr  2 21:53:09 node2 crmd[2425]: warning: No reason to expect node 2 to be down
> Apr  2 21:53:09 node2 pengine[2424]:  notice: Start   pgsqld:0#011(node1-1)
> Apr  2 21:53:09 node2 pengine[2424]:  notice: Start   pgsqld:1#011(node2-1)
> Apr  2 21:53:09 node2 pengine[2424]:  notice: Calculated transition 4, saving inputs in /var/lib/pacemaker/pengine/pe-input-6.bz2
> Apr  2 21:53:09 node2 crmd[2425]:  notice: Initiating monitor operation pgsqld:0_monitor_0 on node1-1 | action 2
> Apr  2 21:53:09 node2 crmd[2425]:  notice: Initiating monitor operation pgsqld:1_monitor_0 locally on node2-1 | action 3
> Apr  2 21:53:09 node2 pgsqlms(pgsqld)[3644]: INFO: Action is monitor
> Apr  2 21:53:09 node2 pgsqlms(pgsqld)[3644]: INFO: pgsql_monitor: monitor is a probe
> Apr  2 21:53:09 node2 pgsqlms(pgsqld)[3644]: INFO: pgsql_monitor: instance "pgsqld" is listening
> Apr  2 21:53:09 node2 pgsqlms(pgsqld)[3644]: INFO: Action result is 0
> Apr  2 21:53:09 node2 crmd[2425]:  notice: Result of probe operation for pgsqld on node2-1: 0 (ok) | call=33 key=pgsqld_monitor_0 confirmed=true cib-update=62
> Apr  2 21:53:09 node2 crmd[2425]: warning: Action 3 (pgsqld:1_monitor_0) on node2-1 failed (target: 7 vs. rc: 0): Error
> Apr  2 21:53:09 node2 crmd[2425]:  notice: Transition aborted by operation pgsqld_monitor_0 'create' on node2-1: Event failed | magic=0:0;3:4:7:3a132f28-d8b9-4948-bb6b-736edc221664 cib=0.28.2 source=match_graph_event:310 complete=false
> Apr  2 21:53:09 node2 crmd[2425]: warning: Action 3 (pgsqld:1_monitor_0) on node2-1 failed (target: 7 vs. rc: 0): Error
> Apr  2 21:53:09 node2 crmd[2425]: warning: Action 2 (pgsqld:0_monitor_0) on node1-1 failed (target: 7 vs. rc: 0): Error
> Apr  2 21:53:09 node2 crmd[2425]: warning: Action 2 (pgsqld:0_monitor_0) on node1-1 failed (target: 7 vs. rc: 0): Error

Apparently your applications are already started on both nodes at the
time you start pacemaker. Pacemaker expects resources to be in inactive
state initially.

> Apr  2 21:53:09 node2 crmd[2425]:  notice: Transition 4 (Complete=4, Pending=0, Fired=0, Skipped=0, Incomplete=10, Source=/var/lib/pacemaker/pengine/pe-input-6.bz2): Complete
> Apr  2 21:53:09 node2 pengine[2424]:  notice: Calculated transition 5, saving inputs in /var/lib/pacemaker/pengine/pe-input-7.bz2
> Apr  2 21:53:09 node2 crmd[2425]:  notice: Initiating monitor operation pgsqld_monitor_16000 locally on node2-1 | action 4
> Apr  2 21:53:09 node2 crmd[2425]:  notice: Initiating monitor operation pgsqld_monitor_16000 on node1-1 | action 7
> Apr  2 21:53:09 node2 pgsqlms(pgsqld)[3663]: INFO: Action is monitor
> 
> 
> 
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