Rabbitmq logstash connection error

RabbitMQ connection error: . Will reconnect in 10 seconds... {:level=>:error}
Exception in thread "<rabbitmq" org.jruby.exceptions.RaiseException: (ShutdownSignal) LogStash::ShutdownSignal
at org.jruby.RubyThread.raise(org/jruby/RubyThread.java:920)
MarchHare::ChannelAlreadyClosed: Attempt to use closed channel
convert_and_reraise at /home/krishna/Downloads/logstash-1.4.3/vendor/bundle/jruby/1.9/gems/march_hare-2.1.2-java/lib/march_hare/exceptions.rb:120
converting_rjc_exceptions_to_ruby at /home/krishna/Downloads/logstash-1.4.3/vendor/bundle/jruby/1.9/gems/march_hare-2.1.2-java/lib/march_hare/channel.rb:962
queue_delete at /home/krishna/Downloads/logstash-1.4.3/vendor/bundle/jruby/1.9/gems/march_hare-2.1.2-java/lib/march_hare/channel.rb:506
delete at /home/krishna/Downloads/logstash-1.4.3/vendor/bundle/jruby/1.9/gems/march_hare-2.1.2-java/lib/march_hare/queue.rb:134
teardown at /home/krishna/Downloads/logstash-1.4.3/lib/logstash/inputs/rabbitmq/march_hare.rb:69
shutdown at /home/krishna/Downloads/logstash-1.4.3/lib/logstash/pipeline.rb:247
each at org/jruby/RubyArray.java:1613
shutdown at /home/krishna/Downloads/logstash-1.4.3/lib/logstash/pipeline.rb:246
each at org/jruby/RubyArray.java:1613
shutdown at /home/krishna/Downloads/logstash-1.4.3/lib/logstash/pipeline.rb:234
execute at /home/krishna/Downloads/logstash-1.4.3/lib/logstash/agent.rb:120
call at org/jruby/RubyProc.java:271
each at org/jruby/RubyArray.java:1613
simulate_signal at /home/krishna/Downloads/logstash-1.4.3/vendor/bundle/jruby/1.9/gems/stud-0.0.17/lib/stud/trap.rb:46
trap at /home/krishna/Downloads/logstash-1.4.3/vendor/bundle/jruby/1.9/gems/stud-0.0.17/lib/stud/trap.rb:26
call at org/jruby/RubyProc.java:271