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| Guest |
 Posted: Sat Jun 28, 2008 11:19 pm |
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Guest
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Hi all,
I read a thread (Queue Info) quite a while ago in which a user had problems using the -remsh option on Windows:
erl -sname temp -remsh rabbit@myhost
(rabbit@myhost1>rabbit_amqqueue:stat_all().
I wondered if it might be easier simply to use an erlang rpc call to do the same thing.
As long as you use the identical erlang.cookie file (or use -setcookie on the command line) that was used to start the rabbitmq daemon, you can call any exported MFA in the context of the daemon using Erlang rpc.
Example:
$ cat ~/.erlang.cookie
BGPCXKVWOUBNYKCYMHBF
$ erl -sname test |
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| Guest |
| Posted: Sun Jun 29, 2008 7:23 am |
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Guest
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Edwin,
Edwin Fine wrote:
> I read a thread (Queue Info) quite a while ago in which a user had
> problems using the -remsh option on Windows:
>
> erl -sname temp -remsh rabbit@myhost
> (rabbit@myhost1>rabbit_amqqueue:stat_all().
>
> I wondered if it might be easier simply to use an erlang rpc call to do
> the same thing.
>
> As long as you use the identical erlang.cookie file (or use -setcookie
> on the command line) that was used to start the rabbitmq daemon, you can
> call any exported MFA in the context of the daemon using Erlang rpc.
That is all true but not really easier than remsh - if one can get rpc
to work then remsh should work too.
> Is there any special reason, other than it's easier just to type
> rabbit_amqqueue:stat_all(), why one would want to use erl -sname temp
> -remsh rabbit@myhost? Just curious.
Convenience is the only reason. rpc is reasonably concise when calling a
single function, but once one starts composing functions the expressions
quickly become unwieldy.
Matthias.
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