[erlang-questions] Sending binaries between nodes.

Luke Hubbard <>
Mon Nov 26 13:07:51 CET 2007


Hi All,

This is my first post to the list, so a big hello from Thailand to kick
things off.

My question is about passing large binaries between nodes. I have read that
if you pass a binary around the same node then there is only one copy which
is ref counted and stored on a separate stack. This is great, but what
happens when you send the same binary to another node in separate messages.
Does Erlang know its sent the binary before and after the first time send
some form of reference or will it send the same binary data multiple times.
The use case for this is broadcasting a binary message to multiple processes
on each node.

Thanks,
Luke
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