Round the target weight, to allow shards that are partially over/unde…

…r loaded to relinquish.
twitter-archive · May 2, 2012 · 208dc0f · 208dc0f
1 parent 24f3467
commit 208dc0f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/gizzard/rebalancer.rb b/lib/gizzard/rebalancer.rb
@@ -48,7 +48,7 @@ def initialize(forwardings_to_trees, dest_templates_and_weights, wrapper, batch_
 
       @result = dest_templates_and_weights.map do |template, weight|
         weight_fraction = weight / total_weight.to_f
-        approx_shards   = total_shards * weight_fraction
+        approx_shards   = (total_shards * weight_fraction).round
 
         Bucket.new template, approx_shards, Set.new
       end