On 07/31/2018 01:47 AM, Casey & Gina wrote: > I've set up a number of clusters in a VMware environment, and am using the > fence_vmware_rest agent for fencing (from fence-agents 4.2.1), as follows: > > Stonith Devices: > Resource: vmware_fence (class=stonith type=fence_vmware_rest) > Attributes: ip=<host> username=<username> password=<password> > ssl_insecure=1 pcmk_host_check=static-list > pcmk_host_list=b-gp2-dbpg35-1;b-gp2-dbpg35-2;b-gp2-dbpg35-3 > Operations: monitor interval=60s (vmware_fence-monitor-interval-60s) > > We are using a dedicated service account on the VMware side for pacemaker. > > The clusters are running fine, and no failover events have happened recently. > However, our VMware admin came to me asking why the pacemaker service > account is logging in and executing API calls very frequently (for an > environment where there are 3 clusters, 9 nodes total, he is seeing ~1400 API Haven't looked at the internals of fence_vmware_rest but sounds like 2-3 API-calls per monitoring (or around 10 API-calls if it is just one monitored instance per cluster - what the config snippet from above looks like). Have you tried to increase the 60s monitoring interval?
Klaus > calls per hour as this user). I do not see anything logged in corosync.log > about why this would be, and my limited understanding was that the fence > agent would only be calling the power off and reboot API's when pacemaker > couldn't get a response from a node in the cluster. I thought that using a > static-list for the host_check would prevent any API calls for getting a list > of hosts, although even if that were going on I would think it would be a > rare event. His concern is that this amount of load on the vmware hosts > isn't sustainable. > > Unfortunately the logging available from vmWare doesn't give a lot of > information - it just says the number of API calls, not which API(s) were > called. > > Any ideas what might be going on? Is there a way to get increased logging > for the fence agent? > > Thanks in advance, _______________________________________________ Users mailing list: Users@clusterlabs.org https://lists.clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
