riak startup issue

Question

I am trying to setup riak 3 node cluster using their very basic 45 minute tutorial, however my first node always fail to start with following error inside erlang.log.1:

=====
===== LOGGING STARTED Tue Jan 10 12:13:08 EST 2012
=====
Exec: /root/packages/basho-riak-782cc74/dev/dev1/erts-5.8.4/bin/erlexec -boot /root/packages/basho-riak-782cc74/dev/dev1/releases/1.0.2/riak             -embedded -config /root/packages/basho-riak-782cc74/dev/dev1/etc/app.config             -args_file /root/packages/basho-riak-782cc74/dev/dev1/etc/vm.args -- console
Root: /root/packages/basho-riak-782cc74/dev/dev1
Erlang R14B03 (erts-5.8.4) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:64] [hipe] [kernel-poll:true]


Crash dump was written to: log/erl_crash.dump
The code server called the unloaded module `erlang'

Here is the link i am following for my setup: http://wiki.basho.com/Building-a-Development-Environment.html

I even tried make rel option but with same error.

# uname -a
Linux li110-56 3.0.4-x86_64-linode21 #1 SMP Thu Sep 1 21:28:01 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux

Log directory doesn't contain any error.log :

root@li110-56:~/packages/basho-riak-782cc74/rel/riak# ls -l log/
total 648
-rw-r--r-- 1 root root    645 2012-01-10 12:21 erlang.log.1
-rw-r----- 1 root root 651183 2012-01-10 12:22 erl_crash.dump
-rw-r--r-- 1 root root    292 2012-01-10 12:21 run_erl.log

Note: Got it working, probably was an error because of duplicates left while downgrading from R14B04 to R14B03. I retried by completely removing /usr/lib/erlang and it worked as expected.

Answer 1

As Brian said, make sure that the version of Erlang installed on your system is compatible with the version of Riak you installed. Riak isn't using the latest and greatest Erlang build and it will cause problems.

Answer 2

I believe first of all you need to look at erl_crash.dump

You can find the cause of crashing - its string that starts with "Slogan:" in the erl_crash.dump