[rabbitmq-discuss] rabbitmq on yocto/openembedded

[Simon MacMullen]

I don't know if this is a silly mistake somewhere. The error description 
is 'undef', encountered invoking mnesia:system_info(directory) - i.e. 
that function wasn't found. Since that's the very first interaction 
RabbitMQ has with Mnesia, I suspect Mnesia just isn't there at all. I'm 
not sure I understand how you created the Erlang RPM, but could it be 
the case that Mnesia wasn't built at all?

Cheers, Simon

On 01/02/13 13:29, Tim Coote wrote:
> I think that I've now got Erlang installed - 'hello world' works,
> anyway, and openembedded has created what looks like a sensible rpm:
> erlang-R15B-r3.armv5te
>
> However, the generic unix install seems unable to get going - I get an
> erlang crash dump and the /var/log/rabbitmq at nodename does not tell me
> very much about where to look, if I start the server with
> rabbitmq-server (as user rabbitmq or as user root):
>
> [code]
> =INFO REPORT==== 31-Jan-2013::22:26:04 ===
> Error description:
>     undef
>
> Log files (may contain more information):
>     /var/log/rabbitmq/rabbit at qemuarm.log
> <mailto:var/log/rabbitmq/rabbit at qemuarm.log>
>     /var/log/rabbitmq/rabbit at qemuarm-sasl.log
> <mailto:var/log/rabbitmq/rabbit at qemuarm-sasl.log>
>
> Stack trace:
>     [{mnesia,system_info,[directory],[]},
>      {rabbit_mnesia,ensure_mnesia_dir,0,[]},
>      {rabbit_node_monitor,prepare_cluster_status_files,0,[]},
>      {rabbit,'-boot/0-fun-1-',0,[]},
>      {rabbit,start_it,1,[]},
>      {init,start_it,1,[]},
>      {init,start_em,1,[]}]
> [/code]
>
>
> I've checked the file permissions (or got around them by running as
> root.)  How do I go about debugging a rabbitmq install?  Are there smoke
> tests for erlang/rabbit that I can try that check out the set up? or
> something else - the documentation that I've found so far seems to
> assume that I can get past this point, so I'd assume that I'm making
> some silly mistake somewhere.
>
> Tim
> On 11 Dec 2012, at 10:07, Alvaro Videla <videlalvaro at gmail.com
> <mailto:videlalvaro at gmail.com>> wrote:
>
>> Hi,
>>
>> I know the Erlang Solutions guys have been playing with Erlang
>> Embedded, you can find more info here:
>> https://www.erlang-solutions.com/downloads/download-erlang-otp
>>
>> I know they also have a github repo for it somewhere.
>>
>> Regards,
>>
>> Alvaro
>>
>>
>>
>> On Tue, Dec 11, 2012 at 11:00 AM, Emile Joubert <emile at rabbitmq.com
>> <mailto:emile at rabbitmq.com>> wrote:
>>
>>
>>     Hi Tim,
>>
>>     On 10/12/12 21:26, Tim Coote wrote:
>>     > Has anyone got any insights into getting rabbitmq onto an open
>>     > embedded/yocto linux build?
>>
>>     I suspect the biggest challenge will be to get a sufficiently recent
>>     version of Erlang installed. Once you have that the generic Unix
>>     binary
>>     should run just fine.
>>
>>     For details about the generic Unix tarball:
>>     http://www.rabbitmq.com/install-generic-unix.html
>>
>>     For details about required versions of Erlang for various features:
>>     http://www.rabbitmq.com/which-erlang.html
>>
>>
>>
>>     -Emile
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>>
>>
>
>
>
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-- 
Simon MacMullen
RabbitMQ, VMware