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Co-authored-by: Yaroslav Dynnikov <[email protected]>

Author: yngvar-antonsson

metrics/default_metrics/tarantool/init.lua

@@ -19,9 +19,13 @@ local default_metrics = {
 }
 
 local function delete_collectors(list)
+    if list == nil then
+        return
+    end
     for _, collector in pairs(list) do
         metrics.registry:unregister(collector)
     end
+    table.clear(list)
 end
 
 local function enable(include, exclude)

metrics/default_metrics/tarantool/memory.lua

@@ -11,7 +11,7 @@ local function update_memory_metrics()
         local i = box.info.memory()
         for k, v in pairs(i) do
             local metric_name = 'info_memory_' .. k
-            collectors_list[metric_name] = utils.set_gauge(metric_name, 'Memory' .. k, v)
+            collectors_list[metric_name] = utils.set_gauge(metric_name, 'Memory ' .. k, v)
         end
     end
 end