Erlang: How to view output of io:format/2 calls in processes spawned on remote nodes.
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Published on 2010-04-06T18:07:43Z
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2010/04/06
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Hello,
I am working on a decentralized Erlang application. I am currently working on a single PC and creating multiple nodes by initializing erl with the -sname flag.
When I spawn a process using spawn/4 on its home node, I can see output generated by calls io:format/2 within that process in its home erl instance.
When I spawn a process remotely by using spawn/4 in combination with register_name, output of io:format/2 is sometimes redirected back to the erl instance where the remote spawn/4 call was made, and sometimes remains completely invisible.
Similarly, when I use rpc:call/4, output of io:format/2 calls is redirected back to the erl instance where the `rpc:call/4' call is made.
How do you get a process to emit debugging output back to its parent erl instance?
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