On 03/08/17 12:31 +0530, Sriram wrote: > We have a four node cluster (1 active : 3 standby) in our lab for a > particular service. If the active node goes down, one of the three standby > node becomes active. Now there will be (1 active : 2 standby : 1 offline). > > Is there any way where this newly elected node sends notification to the > remaining 2 standby nodes about its new status ? > > I was exploring "notification agent" and "notification recipient" features, > but that doesn't seem to work. /etc/sysconfig/notify.sh doesn't get invoked > even in the newly elected active node. > > Cluster Properties: > cluster-infrastructure: corosync > dc-version: 1.1.17-e2e6cdce80 > default-action-timeout: 240 > have-watchdog: false > no-quorum-policy: ignore > *notification-agent: /etc/sysconfig/notify.sh* > *notification-recipient: /var/log/notify.log*
This ^ legacy approach to configure notifications ... > placement-strategy: balanced > stonith-enabled: false > symmetric-cluster: false > > > I m using the following versions of pacemaker and corosync. > > /usr/sbin # ./pacemakerd --version > Pacemaker 1.1.17 ... is not expected to be used with this ^ new pacemaker (or any version 1.1.15+, for that matter, unless explicitly enabled): https://github.com/ClusterLabs/pacemaker/commit/a8d8c0c2d4cad571f0746c879de4f6d0c55dd5d6 [...] > Can you please suggest if I m doing anything wrong or if there any other > mechanisms to achieve this ? Please, have a look at the respective chapter of Pacemaker Explained http://clusterlabs.org/doc/en-US/Pacemaker/1.1-pcs/html-single/Pacemaker_Explained/index.html#_alert_agents with the details on how to use the blessed (and usually only, which is very likely here) approach to configure notification scripts. -- Poki
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