Host-agnostic compute queries

Cherry-picked from: d2bfec0b3d11c88524148dba9015be4d9aad0f75

Change-Id: I935735ec32eb318025de30492a5fb2e775320d86
Related-bug: PROD-30600 (PROD:30600)
diff --git a/prometheus/gainsight/query/openstack.yml b/prometheus/gainsight/query/openstack.yml
index b443712..0e7aab6 100644
--- a/prometheus/gainsight/query/openstack.yml
+++ b/prometheus/gainsight/query/openstack.yml
@@ -19,7 +19,7 @@
         nova_vm_all: "'Total VM number','avg_over_time(total:openstack_nova_instance_all[1d])'"
         nova_vm_failed: "'Failed VM number','avg_over_time(total:openstack_nova_instance_failed[1d])'"
         kpi_downtime: "'KPI Downtime','1 - avg_over_time(total:openstack_nova_instance_failed[1d]) / avg_over_time(total:openstack_nova_instance_all[1d])'"
-        compute_instance_create_start: "'VM creation start','sum(compute_instance_create_start_host_doc_count)'"
-        compute_instance_create_end: "'VM creation end','sum(compute_instance_create_end_host_doc_count)'"
-        compute_instance_create_error: "'VM creation error','sum(compute_instance_create_error_host_doc_count)'"
+        compute_instance_create_start: "'VM creation start','sum(compute_instance_create_start_event_doc_count)'"
+        compute_instance_create_end: "'VM creation end','sum(compute_instance_create_end_event_doc_count)'"
+        compute_instance_create_error: "'VM creation error','sum(compute_instance_create_error_event_doc_count)'"