[rabbitmq-discuss] nodename variable and mnesia directory

[Elizabeth Liao]

Hi,

We are currently running rabbitmq on a system where there is a need to change the hostname occasionally.  Right now, when the hostname is changed, we also update the NODENAME variable in the rabbitmq-env.conf file.

The problem we're having right now is that due to a bug when setting up the rabbitmq-env.conf file, sometimes the NODENAME variable exists but is not set to anything ( NODENAME=) so rabbit never successfully starts up.  Even after setting the NODENAME variable to the hostname, rabbit still doesn't start up properly.

The only way that I could find to recover from this situation without killing the erlang process, was to also set a MNESIA_DIR variable. After I did that, once the NODENAME was set to the correct hostname, rabbit started up properly.

A couple of questions:
Is this the proper way to fix the situation?
Will this have unintended consequences?

We are running rabbitmq-server-2.8.6 and erlang-R15B.

Thanks!

Liz
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