[Minor] Do not touch elements that have no hits

diff --git a/src/plugins/lua/maps_stats.lua b/src/plugins/lua/maps_stats.lua
index d2f094b912b645114c23aa22d5e222d2a1008535..ed6aedbd3777245365698861a9c67e7fea5452d8 100644 (file)
--- a/src/plugins/lua/maps_stats.lua
+++ b/src/plugins/lua/maps_stats.lua
@@ -83,7 +83,9 @@ local function process_map(map, ev_base, _)
     if ret and conn then
       local stats = map:get_stats(true)
       for k,s in pairs(stats) do
-        conn:add_cmd('ZINCRBY', {key, tostring(s), k})
+        if s > 0 then
+          conn:add_cmd('ZINCRBY', {key, tostring(s), k})
+        end
       end
     end
   end