kvm: Add option 'noaction' for storage issue handling

Author: ustcweizhou

plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/KVMHABase.java

@@ -45,6 +45,7 @@ public static enum PoolType {
     public enum HeartBeatAction {
         HARDRESET("hardreset", "-c"),
         DESTROYVMS("destroyvms", "-d"),
+        NOACTION("noaction", "-n"),
         STOPAGENT("stopagent", "-s");
 
         String _action;

plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/KVMHAMonitor.java

@@ -171,6 +171,11 @@ private void check() {
                 // Perform action if can't write to heartbeat file.
                 // This will raise an alert on the mgmt server
                 s_logger.warn("write heartbeat failed: " + result);
+                if (HeartBeatAction.NOACTION.equals(s_heartBeatFailureAction)) {
+                    s_logger.warn("No action will be performed on storage pool: " + primaryStoragePool._poolUUID);
+                    _storagePoolCheckStatus.remove(primaryStoragePool._poolUUID);
+                    return true;
+                }
 
                 performAction(primaryStoragePool);
                 _storagePoolCheckStatus.put(primaryStoragePool._poolUUID, STATUS_TERMINATED);