moving processes from node to node

Bengt Kleberg <>
Mon Jun 23 08:19:16 CEST 2003


> X-Injected-Via-Gmane: http://gmane.org/
> To: 
> From: Roussel Jérôme <>
> Subject: moving processes from node to node


> 	- is it possible to transfer a whole application (with all its modules) 
> from one computer (using one erlang node) to another computer (with 
> another erlang node)? I don't talk about process migration because I 
> only want to copy all the files of an application from the hard drive of 
> computer A to put all theses files onto the hard drive of computer B
> 
> 	- is it possible next to check if all the needed modules are available 
> on the computer B?
> 
> 	- if all this is possible, is it possible, in one word, to move one 
> application from one node to another (without doing it by hand) ???

''by hand''? does this mean ''sneaker net'' (manually carrying the
files on some media), or would ''scp <files> <computer>'' also be ''by
hand''?


while waiting for the high tech solution (presumably there is already
some otp module that does this) i have the following (bfmi) suggestion:

1 use the code module to find the modules (code:which/1)
2 use the file module to read them (file:read_file/1)
3 (possibly use rpc:call/4 with file:make_dir/1 to create correct
directory on the other node)
4 using the binaries from step 2, write them on the other node
(rpc:call/4 with file:write_file/2)


bengt




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