AMQP::Buffer::Overflow while running as a daemon

[jgeiger]

I'm running a few daemons using daemon-kit and every so often one of them crashes with a Buffer::Overflow exception. I'm not sure of the best way to go about debugging this, but wanted to post it in case someone had a solution or suggestion.

E, [2010-03-10T16:15:53.662666 40042] ERROR -- : AMQP::Buffer::Overflow (AMQP::Buffer::Overflow)
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:252:in `_read'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:95:in `read'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:88:in `map'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:88:in `read'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:102:in `read'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:88:in `map'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:88:in `read'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/frame.rb:61:in `parse'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/buffer.rb:243:in `extract'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/frame.rb:60:in `parse'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp/client.rb:115:in `receive_data'
/opt/local/lib/ruby/gems/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run_machine'
/opt/local/lib/ruby/gems/1.8/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
/opt/local/lib/ruby/gems/1.8/gems/amqp-0.6.7/lib/amqp.rb:79:in `start'
/opt/local/lib/ruby/gems/1.8/gems/daemon-kit-0.1.8pre/lib/daemon_kit/amqp.rb:35:in `run'
/opt/local/lib/ruby/gems/1.8/gems/daemon-kit-0.1.8pre/lib/daemon_kit/amqp.rb:20:in `run'

[dougbarth]

We hit that in application and traced it back to an exception that was bubbling out of our code and into the amqp library. We are on an older version of AMQP (0.6.0), so YMMV.

[botanicus]

I'd need more info to debug it.

[michaelklishin]

Closing as very old. amqp gem 0.8.x and 0.9.0.pre don't have the code in question anyway.