Forum: Ruby on Rails Getting random threading errors in jruby (1.7.3) & rails 2.3.17 application

2805558692aec1627d3da8ec531381bd?d=identicon&s=25 Pratik (Guest)
on 2014-06-04 16:54
(Received via mailing list)
I am running jruby (1.7.3) & rails 2.3.17 application whose apis are
exposed to outside app. When I add "config.threadsafe!" in my
development.rb/production.rb & hit lot many api requests in a second
then I
am getting following errors randomly for some of the api requests:

   1. TypeError (NilClass can't be coerced into Float)
   2. RuntimeError (can't add a new key into hash during iteration)
   3. Rendering /appl/mml/tomcat/server/mml-api1/webapps/api/500.html
(500
   Internal Server Error)
   4. Status: 500 Internal Server Error

Does newer jruby version solves this issue? But my application does not
support jruby > 1.7.3.

Also even if I add the affecting method in below synchronize block then
also it is not synchronizing that method. Note : I have added
"config.threadsafe!" in my development.rb & production.rb

 semaphore = Mutex.new
        thread = Thread.new {
          semaphore.synchronize {
                                   #affecting code/method
                }
               }

But if I remove "config.threadsafe!" from my
development.rb/production.rb &
hit huge number of requests I am not getting any error but this time
performance is impacted.

Is there any solution to remove these errors without affecting the
performance?
Please log in before posting. Registration is free and takes only a minute.
Existing account

NEW: Do you have a Google/GoogleMail, Yahoo or Facebook account? No registration required!
Log in with Google account | Log in with Yahoo account | Log in with Facebook account
No account? Register here.