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| author | Simon MacMullen <simon@rabbitmq.com> | 2013-04-17 10:41:20 +0100 |
|---|---|---|
| committer | Simon MacMullen <simon@rabbitmq.com> | 2013-04-17 10:41:20 +0100 |
| commit | cfa98cd3073cac972721c0884ae05189dda6a0f1 (patch) | |
| tree | 662db4851bd1c8cb9441e516d8e39a438eabbe89 | |
| parent | 73b7ccda425668ebd26debc6458b265af4f599a8 (diff) | |
| download | rabbitmq-server-cfa98cd3073cac972721c0884ae05189dda6a0f1.tar.gz | |
Explain why we are doing this.
| -rw-r--r-- | src/rabbit_mnesia.erl | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/rabbit_mnesia.erl b/src/rabbit_mnesia.erl index 5d902b5d..95182a7c 100644 --- a/src/rabbit_mnesia.erl +++ b/src/rabbit_mnesia.erl @@ -793,6 +793,9 @@ check_beam_compatibility(RemoteHash) -> "Incompatible Erlang bytecode found on nodes"}} end. +%% The delegate module sends functions across the cluster; if it is +%% out of sync (say due to mixed compilers), we will get badfun +%% exceptions when trying to do so. Let's detect that at startup. delegate_beam_hash() -> DelegateBeamLocation = code:which(delegate), {ok, {delegate, Hash}} = beam_lib:md5(DelegateBeamLocation), |