Infiniband: Skip errors when reading unimplemented metrics (#22158)

* Infiniband: Skip errors when reading unimplemented metrics

* Infiniband: Add changelog for bug fix

* Update infiniband/changelog.d/22158.added

Co-authored-by: Steven Yuen <[email protected]>

---------

Co-authored-by: Steven Yuen <[email protected]>

Author: 41ks

infiniband/changelog.d/22158.added

@@ -0,0 +1 @@
+Skip errors when reading unimplemented metrics

infiniband/datadog_checks/infiniband/check.py

@@ -121,11 +121,14 @@ def _collect_status_metrics(self, port_path, tags):
                         self.monotonic_count(f"port_{status_file}.count", value, metric_tags)
 
     def _submit_counter_metric(self, file_path, metric_name, tags):
-        with open(file_path, "r") as f:
-            value = int(f.read().strip())
+        try:
+            with open(file_path, "r") as f:
+                value = int(f.read().strip())
 
-            if self.collection_type in {'gauge', 'both'}:
-                self.gauge(metric_name, value, tags)
+                if self.collection_type in {'gauge', 'both'}:
+                    self.gauge(metric_name, value, tags)
 
-            if self.collection_type in {'monotonic_count', 'both'}:
-                self.monotonic_count(f"{metric_name}.count", value, tags)
+                if self.collection_type in {'monotonic_count', 'both'}:
+                    self.monotonic_count(f"{metric_name}.count", value, tags)
+        except OSError as e:
+            self.log.debug("Failed to read value from %s: %s", file_path, e)