Use sysstat in servers lsit

bigbluebutton/cli/__init__.py

@@ -82,15 +82,20 @@ def servers_list(ctx):
     # Update all possible data for all servers
     ctx.obj["apis"].refresh()
 
-    data = [
-        (
-            name,
-            api.host,
-            ", ".join(["{:.2f}".format(val) for val in api.sysstat.get("loadavg", "")]),
-            str(api.sysstat.get("cpus", ""))
-        )
-        for name, api in ctx.obj["apis"].apis.items()
-    ]
+    data = []
+    for name, api in ctx.obj["apis"].apis.items():
+        if api.sysstat is not None:
+            loadavgs = (
+                float(api.sysstat.reports["queue"].tail(1)["ldavg-1"]),
+                float(api.sysstat.reports["queue"].tail(1)["ldavg-5"]),
+                float(api.sysstat.reports["queue"].tail(1)["ldavg-15"]),
+            )
+            num_cpus = api.sysstat.num_cpus
+        else:
+            loadavgs = tuple()
+            num_cpus = ""
+
+        data.append((name, api.host, ", ".join([str(val) for val in loadavgs]), str(num_cpus)))
     headers = ("Name", "Hostname", "Load avg.", "CPUs")
 
     print(tabulate(data, headers=headers))