Github user bhaisaab commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/580#discussion_r34755639
--- Diff:
plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/wrapper/LibvirtFenceCommandWrapper.java
---
@@ -48,6 +48,18 @@ public Answer execute(final FenceCommand command, final
LibvirtComputingResource
final KVMHAMonitor monitor = libvirtComputingResource.getMonitor();
final List<NfsStoragePool> pools = monitor.getStoragePools();
+
+ /**
+ * We can only safely fence off hosts when we use NFS
+ * On NFS primary storage pools hosts continuesly write
+ * a heartbeat. Disable Fencing Off for hosts without NFS
+ */
+ if (pools.size() == 0) {
+ String logline = "No NFS storage pools found. No way to safely
fence " + command.getVmName() + " on host " + command.getHostGuid();
--- End diff --
maybe add an alert for admin here, _alertMgr.sendAlert?
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