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fluent · Oct 23, 2017 · 2261428 · 2261428
1 parent 1a6f16b
commit 2261428
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/fluent/plugin/buffer.rb b/lib/fluent/plugin/buffer.rb
@@ -352,6 +352,8 @@ def enqueue_all
         log.trace "enqueueing all chunks in buffer", instance: self.object_id
         if block_given?
           synchronize{ @stage.keys }.each do |metadata|
+            # NOTE: The following line might cause data race depending on Ruby implementations except CRuby
+            # cf. https://github.com/fluent/fluentd/pull/1721#discussion_r146170251
             chunk = @stage[metadata]
             next unless chunk
             v = yield metadata, chunk