Resolved Bug 1553 - Monitoring of certain infrastructure metrics fails in Openstack...

Change-Id: Ic657c949e11563e11228f0b2d988b9f6a91612f3
Signed-off-by: Atul Agarwal <Atul.Agarwal@Altran.com>

diff --git a/osm_mon/collector/vnf_collectors/openstack.py b/osm_mon/collector/vnf_collectors/openstack.py
index a5c4980..a57eb46 100644 (file)
--- a/osm_mon/collector/vnf_collectors/openstack.py
+++ b/osm_mon/collector/vnf_collectors/openstack.py
@@ -55,6 +55,16 @@ METRIC_MAPPINGS = {
     "cpu_utilization": "cpu",
 }
 
+# Metrics which have new names in Rocky and higher releases
+METRIC_MAPPINGS_FOR_ROCKY_AND_NEWER_RELEASES = {
+    "disk_read_ops": "disk.device.read.requests",
+    "disk_write_ops": "disk.device.write.requests",
+    "disk_read_bytes": "disk.device.read.bytes",
+    "disk_write_bytes": "disk.device.write.bytes",
+    "packets_received": "network.incoming.packets",
+    "packets_sent": "network.outgoing.packets"
+    }
+
 METRIC_MULTIPLIERS = {
     "cpu": 0.0000001
 }
@@ -127,7 +137,23 @@ class OpenstackCollector(BaseVimCollector):
                             metric_type,
                             metric_name,
                             resource_id)
-                        value = self.backend.collect_metric(metric_type, openstack_metric_name, resource_id)
+                        value = self.backend.collect_metric(
+                            metric_type, openstack_metric_name, resource_id
+                        )
+
+                        if value is None and metric_name in METRIC_MAPPINGS_FOR_ROCKY_AND_NEWER_RELEASES:
+                            # Reattempting metric collection with new metric names.
+                            # Some metric names have changed in newer Openstack releases
+                            log.info(
+                                "Reattempting metric collection for type: %s and name: %s and resource_id %s",
+                                metric_type,
+                                metric_name,
+                                resource_id
+                            )
+                            openstack_metric_name = METRIC_MAPPINGS_FOR_ROCKY_AND_NEWER_RELEASES[metric_name]
+                            value = self.backend.collect_metric(
+                                metric_type, openstack_metric_name, resource_id
+                            )
                         if value is not None:
                             log.info("value: %s", value)
                             metric = VnfMetric(nsr_id, vnf_member_index, vdur['name'], metric_name, value, tags)