mypeb
mypeb copied to clipboard
videlalvaro
peb_connect fails
After start an erlang node, peb_connect fails first time I run my script. If I try again it works. You can try this code: https://gist.github.com/videlalvaro/324043
I have last peb version from github, PHP 5.4.12 and Erlang R16B (erts-5.10.1) on Mac.
The problem seems to be in the timeout argument passed to the peb_connect function here: https://gist.github.com/videlalvaro/324043#file-ets-php-L98
If you don't provide any timeout value the code works.
Perhaps the meaning of the timeout value changed, from seconds to milliseconds. If yes I'd have to investigate.
As you say @videlalvaro , if no timeout is provided the code works, but is not fully my case, I've an strange issue where peb_rpc("ets", "new", $x, $this->link) returns the expected ets name, but when i query about it as ets:info i get undefined response.
After talk with @jordillonch , he told me that it can be related with timeout values, so i've been trying to use peb_connect passing high timeout values (200) , with no success, getting "violacion de segmento" , without any other errors , the main diference with @jordillonch encironment is that my system is running on ubuntu 12.10 . In fact, 'violacion de segmento' issue was the root case that force me to do not use timeout parameter under linux environments.
As you know I haven't been using this library for a while.
It's basically a wrapper over this library http://erlang.org/doc/man/ei.html
It seems the timeout parameter now is in milliseconds: http://erlang.org/doc/man/ei_connect.html#ei_connect_tmo
If you want to debug it and submit a patch I'm happy to apply it.
I would suggest that if you want to debug this issue, create a simple gen_server where you log every handle_info call so you can see what messages are you getting
Here you have another usage example of peb: https://github.com/tnc/rac in case you wanted to see more
Don't get me wrong @videlalvaro , i'm quite sure that maybe i'm doing something not propertly, Thank you about rac example, i've see that connection is created like: $this->link = peb_connect(RABBITMQ_HOST, RABBITMQ_COOKIE); So i understant that timeout is just an option.:)
No worries @marcosQuesada in the code cited by @jordillonch about the ETS examples, the timeout is clearly wrong, because it's just 1 millisecond. I think the ei API changed that at some point