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<  Erlang  ~  dynamic node creation?
saketkunwar
Posted: Fri May 01, 2009 4:19 pm Reply with quote
Joined: 11 Feb 2009 Posts: 6
hi
how would i create nodes dynamically at runtime.
instead of erl -sname ss ,i need to create nodes
from inside a function?

saket
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seancribbs
Posted: Sun May 03, 2009 5:38 pm Reply with quote
User Joined: 03 May 2009 Posts: 17 Location: Chapel Hill, NC
You can dynamically create extra nodes using the slave application which exists in stdlib. The caveat is that the created nodes are not independent; that is, they are "linked" and will die when the node that creates them (the "master" node) goes down. The other option is to run a function on a node on the target machine that shells out to the "erl" command and immediately uses net_adm:ping/1 to contact the origin node. Not pretty, but it would work.
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flodis
Posted: Tue Jun 16, 2009 5:40 pm Reply with quote
User Joined: 09 Jul 2008 Posts: 27
seancribbs wrote:
You can dynamically create extra nodes using the slave application which exists in stdlib. The caveat is that the created nodes are not independent; that is, they are "linked" and will die when the node that creates them (the "master" node) goes down. The other option is to run a function on a node on the target machine that shells out to the "erl" command and immediately uses net_adm:ping/1 to contact the origin node. Not pretty, but it would work.


When reading the documentation for the module slave the function start does not create a link between the nodes which should result in an independent "slave" node.

http://www.erlang.org/doc/man/slave.html
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