[erlang-questions] rebar and the observer application.

[Red Davies]

Greetings,

I'm still very new, please forgive me if this is an easy question to answer.

I'm trying to use observer to view my application VM.  The application is
run as follows:

rel/xeuler1/bin/xeuler1 console
Exec: /home/red/projects/dev--/xeuler1/rel/xeuler1/erts-5.9/bin/erlexec
-boot /home/red/projects/dev--/xeuler1/rel/xeuler1/releases/1/xeuler1 -mode
embedded -config
/home/red/projects/dev--/xeuler1/rel/xeuler1/releases/1/sys.config
-args_file /home/red/projects/dev--/xeuler1/rel/xeuler1/releases/1/vm.args
-- console
Root: /home/red/projects/dev--/xeuler1/rel/xeuler1
Erlang R15B (erts-5.9) [source] [64-bit] [smp:4:4] [async-threads:0]
[kernel-poll:false]

Eshell V5.9  (abort with ^G)
(xeuler1@REDACTED)1>

I run up a second erlang instance with my observer application as follows:
erl -name observer -hidden -setcookie xeuler1 -run observer

The nodes are able to communicate:
(observer@REDACTED)1> net:ping(xeuler1@REDACTED).
pong

However, when I try to connect to the remote node using the observer UI I
get the following output:
=ERROR REPORT==== 4-May-2012::13:22:17 ===
    node: 'xeuler1@REDACTED'
    call: {observer_backend,sys_info,[]}
    reason: {badrpc,
                {'EXIT',
                    {undef,
                        [{observer_backend,sys_info,[],[]},
                         {rpc,'-handle_call_call/6-fun-0-',5,
                             [{file,"rpc.erl"},{line,203}]}]}}}

So, my understanding of the problem is that my reltool generated
environment doesn't have a deployed version of observer.  I've added it to
reltool.config the best I can understand it and a find rel/ | grep observer
does see observer related files in there.

If I try to run observer:start() from my actual xeuler1 VM then it hangs
indefinately.

Any advice on how I to debug this?

Thanks,



Red
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