Hi, If I have two DRBD resources: resourceA resourceB
What's the best way to configure the constraints in pacemaker so that a tomcat resource, which serves both of them when mounted, will not be started unless they are both present? My current configuration (below) fails to migrate correctly when drbd_B fails due to network glitch and tomcat fails to stop. In this case, the demote on drbd_B fails because the directory is still mounted and I end up with a split brain scenario. Basically I want to force drbd_A and drbd_B to be master on the same system. Currently I have: node nodeA node nodeB primitive drbd_A ocf:linbit:drbd \ params drbd_resource="A" \ op start interval="0" timeout="240" \ op stop interval="0" timeout="100" \ op monitor interval="30" primitive drbd_B ocf:linbit:drbd \ params drbd_resource="B" \ op start interval="0" timeout="240" \ op stop interval="0" timeout="100" \ op monitor interval="30" primitive fs_A ocf:heartbeat:Filesystem \ params device="/dev/drbd/by-res/A" directory="/mnt/A" fstype="ext3" options="defaults,noatime" \ op start interval="0" timeout="60" \ op stop interval="0" timeout="60" \ op monitor interval="60" timeout="40" depth="0" primitive fs_B ocf:heartbeat:Filesystem \ params device="/dev/drbd/by-res/B" directory="/mnt/B" fstype="ext3" options="defaults,noatime" \ op start interval="0" timeout="60" \ op stop interval="0" timeout="60" \ op monitor interval="60" timeout="40" depth="0" primitive tomcat_tc1 ocf:heartbeat:tomcat \ params tomcat_user="tomcat" catalina_home="/opt/tomcat6" catalina_base="/home/tomcat/tc1" catalina_pid="/home/tomcat/tc1/temp/tomcat.pid" catalina_rotate_log="NO" script_log="/home/tomcat/tc1/logs/tc1.log" statusurl="http://localhost/manager/serverinfo" java_home="/usr/lib/jvm/java" \ op start interval="0" timeout="60" \ op stop interval="0" timeout="20" \ op monitor interval="60" timeout="30" start-delay="60" primitive vip_1 ocf:heartbeat:IPaddr2 \ params ip="10.xx,xx,xx" nic="bond0" iflabel="3" \ op monitor interval="10" timeout="20" group grp_1 fs_A fs_B vip_1 tomcat_tc1 ms ms_drbd_A drbd_A \ meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true" ms ms_drbd_B drbd_B \ meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true" location loc_ms_drbd_A ms_drbd_A 100: nodeA location loc_ms_drbd_B ms_drbd_B 100: nodeA colocation A_on_drbdA inf: grp_1 ms_drbd_A:Master colocation B_on_drbdB inf: grp_1 ms_drbd_B:Master order A_after_drbdA inf: ms_drbd_A:promote grp_1:start Is there a better way to configure this? Thanks for any help /pointers. -- Best Regards, Brett Delle Grazie _______________________________________________ Pacemaker mailing list: Pacemaker@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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker