Thanks for the prompt response ... I'm not sure why kill -QUIT <process_id> didn't give me a thread dump; but I'll try setting the number of runtimes - that had not occurred to me to try. Currently I do not set the number of runtimes; is the default 1? If so that might explain it. What is the recommended min/max number of runtimes?
Thanks again Nick Sieger-2 wrote: > > On Fri, Jan 15, 2010 at 1:10 PM, oaw <[email protected]> wrote: >> >> I'm on JRuby 1.4.0 (JDK version 1.6.0_17). The following code hangs my >> JRuby >> on Rails app. >> >> require 'net/http' >> require 'timeout' >> >> begin >> Timeout::timeout(5) do >> res = >> Net::HTTP.get_response("http://localhost:8080/projects/1/email_approved";) >> res.body >> rescue Exception => e >> RAILS_DEFAULT_LOGGER.error e >> RAILS_DEFAULT_LOGGER.error e.backtrace.join('\n\t') >> end >> >> Non-local URLs work; only local URLs hang. It works fine in MRI Ruby. >> I've >> tried to resolve this for days with no success. Googling around, I found >> that timeout.rb is not reliable in previous versions of JRuby, so I >> upgraded >> to JRuby 1.4.0 but I still have this problem. >> >> Could someone please help? It would be greatly appreciated. I am at a >> complete loss. > > Does your HTTP request loop back around to the same application that > is executing the request? Perhaps your app is pinned on a small number > of runtimes the extra request is waiting to acquire one. You could try > sending a QUIT signal to the process to generate a thread dump to see > what might be waiting and where. > > Does it hang forever? Timeout.timeout doesn't help? Does your > appserver allow user-created threads? > > I gave you more questions than answers, but hopefully helps you narrow > down the problem. > > /Nick > > --------------------------------------------------------------------- > To unsubscribe from this list, please visit: > > http://xircles.codehaus.org/manage_email > > > > -- View this message in context: http://old.nabble.com/Net%3A%3AHTTP-hangs-in-JRuby-on-Rails-app---please-help%21-tp27181232p27181845.html Sent from the JRuby - Dev mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email
