What is wrong with the settings if setting up rabbitmq-server is FAILED?

Question

ubuntu

Hi all.
I can't start rabbitmq-server on Ubuntu 14.04, I get an error (crawled the Internet - everywhere they advise me to change hostname):
Setting up rabbitmq-server (3.6.6-1) ...
Starting rabbitmq-server: FAILED - check /var/log/ rabbitmq/startup_{log, _err}
rabbitmq-server.
invoke-rc.d: initscript rabbitmq-server, action "start" failed.
dpkg: error processing rabbitmq-server (--configure):
subprocess installed post-installation script returned error exit status 1
No apport report written because MaxReports is reached already
Errors were encountered while processing: rabbitmq-server
E: Sub-process /usr/ bin/dpkg returned an error code (1)
/var/log/rabbitmq/startup_err gives:
Failed to create aux thread
Crash dump is being written to: erl_crash.dump...done
Aborted
/var/log/rabbitmq/startup_log - empty
/etc/hostname: example
/etc/hosts: 127.0.0.1 example
ps aux | grep rabbitmq
rabbitmq 2241 0.0 0.0 7440 456 ? S 17:28 0:00 /usr/lib/erlang/erts-8.2/bin/epmd -daemon
root 5397 0.0 0.0 8812 784 pts/2 S+ 18:05 0:00 grep --color=auto rabbitmq
What else to show so that - who came across - helped to figure it out? - which day I struggle with this problem (in the bourgeois Internet, all solutions one way or another come down to prescribing a hostname)
Thank you in advance.

Answer 1

Before all the methods described on the Internet (and there are a lot of them, VERY)
Increase the RAM on the server / virtual machine. Or temporarily unload it as much as possible.
For me, with my 1 GB of RAM, only a temporary increase to 2 GB helped. After a successful installation, I returned 1 gig. Works.