[erlang-questions] Why RPC in Erlang? [was: How RPC works in erlang?]

[Greg]

So when to use rpc:call and when to send a message by RemotePID ! {call,
procedure}? Is there any general guidelines?

There was these long standing debate over this
http://armstrongonsoftware.blogspot.in/2008/05/road-we-didnt-go-down.html;



On Fri, Oct 6, 2017 at 8:17 PM, zxq9 <zxq9@REDACTED> wrote:

> On 2017年10月06日 金曜日 10:43:48 Roger Lipscombe wrote:
> > On 6 October 2017 at 03:37, zxq9 <zxq9@REDACTED> wrote:
> > > Thinking that the rpc module is specially useful for tests, CLI
> > > wrappers, or when you want to execute commands on a remote node (from
> > > a script or otherwise) is a bit of an odd conclusion to draw, given
> > > the way that the even-arity spawn_* functions work.
> >
> > On occasion, we've needed to (e.g.) tweak application settings in a
> > remote node, at runtime, during system tests, synchronously. Sure, I
> > could do that with spawn_*, but that's a lot of plumbing I'd need to
> > write. Hey, look: someone already did; it's in the rpc module.
>
> Sure. I'm not disagreeing with that.
>
> I'm disagreeing with the false notion that this is what "remote
> procedure call" actually means.
>
> -Craig
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