How to control timeout exceptions.

[Junaid Junaidi]

This is code that i am using for fetching updates from twitter. I used
SystemTimer gem from
thoughtwork(http://ph7spot.com/articles/system_timer) to ensure that we
don't get anymore timeout exception and crashed page.As article
(http://ph7spot.com/articles/system_timer) points out weaknesses of
timeout.rb implemented in ruby 1.8. We are using ruby 1.8 in production.
After system_timer we also handle "rescue Twitter::Error" but they also
didn't work. I know we can also option to configure timeout in the http
client library but i think these both should work fine.

We are using rails 2.2.2 and ruby 1.8.6. Here is my code.

TWITTER_SERVICE_TIMEOUT = 25s

begin
SystemTimer.timeout(TWITTER_SERVICE_TIMEOUT) do
c = Twitter::Client.newlogin =>
profile_twitter.email,assword => profile_twitter.password)
my_timeline = c.timeline_forme, :since => 30.minutes.ago)
end
rescue Twitter::RESTError => re

rescue Timeout::Error
#my_timeline = nil
end

Exception i got mostly

/usr/lib/ruby/1.8/net/http.rb:560:in `initialize'
/usr/lib/ruby/1.8/net/http.rb:560:in `open'
/usr/lib/ruby/1.8/net/http.rb:560:in `connect'
/usr/lib/ruby/1.8/timeout.rb:53:in `timeout'
/usr/lib/ruby/1.8/timeout.rb:93:in `timeout'
/usr/lib/ruby/1.8/net/http.rb:560:in `connect'
/usr/lib/ruby/1.8/net/http.rb:553:in `do_start'
/usr/lib/ruby/1.8/net/http.rb:542:in `start'
/usr/lib/ruby/gems/1.8/gems/twitter4r-0.3.0/lib/twitter/client/base.rb:9:in
`http_connect'
/usr/lib/ruby/gems/1.8/gems/twitter4r-0.3.0/lib/twitter/client/timeline.rb:66:in
`timeline_for'

 

[Robert Dober]

<snip>
Maybe you want to check out Terminator?
http://rubyforge.org/frs/?group_id=3D1024&release_id=3D26322
or
http://codeforpeople.com/lib/ruby/terminator/

I cannot make promises but Ara is probably *the* guy to come up with a
solution for that kind of problem.

HTH
Robert
--=20
Toutes les grandes personnes ont d=92abord =E9t=E9 des enfants, mais peu
d=92entre elles s=92en souviennent.

All adults have been children first, but not many remember.

[Antoine de Saint-Exup=E9ry]