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-rw-r--r--src/delegate.erl3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/delegate.erl b/src/delegate.erl
index afe3bcb687..3ef83fa97b 100644
--- a/src/delegate.erl
+++ b/src/delegate.erl
@@ -31,6 +31,9 @@
%%
%% Errors returned when executing functions on remote nodes are re-raised
%% in the caller.
+%%
+%% Delegates are used for queue mirroring. RabbitMQ starts a pool of
+%% delegate processes on boot. The size of the pool is configurable.
-behaviour(gen_server2).