[erlang-questions] Help! rb won't start, and won't stop

Robert Raschke <>
Fri May 20 14:41:11 CEST 2011


On Fri, May 20, 2011 at 1:37 PM, Ivan Uemlianin <> wrote:

> Dear All
>
> This is my own fault.
>
> I recently restarted my remote app, connected to the node in a shell,
> started rb and called rb:show(), expecting a list of a hundred or so reports
> since starting the app.  I realised too late that rb would show me all the
> logs in the ten rotating log files.
>
> I can't remember what I did next.  It included killing the job and quitting
> the shell.
>
> When I came back, rb wouldn't start:
>
>    1> {ok,Pid} = rb:start().
>    ** exception error: no match of right hand side value
> {error,already_present}
>

At this point your shelll crashed, taking the already started rb with it.


>
> But it wouldn't stop either:
>
>    2> rb:stop().
>    ** exception exit: {noproc,{gen_server,call,[rb_server,stop,infinity]}}
>         in function  gen_server:call/3
>         in call from rb:stop/0
>

Thus attempting to stop it gives you this error.


>
> It wouldn't show me the reports:
>
>    > rb:show(1).
>    ** exception exit: {noproc,{gen_server,call,
>
> [rb_server,{show_number,1},infinity]}}
>         in function  gen_server:call/3
>
>
You should be able to simply rb:start() it again now.

Robby
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20110520/cdadbdf6/attachment.html>


More information about the erlang-questions mailing list