WARNING: Default JAVA_OPTS will be overridden by the JAVA_OPTS defined in the environment. Environment JAVA_OPTS are -Djava.io.tmpdir=/var/lib/logstash
FFI::NotFoundError: Function 'zmq_ctx_new' not found in [libzmq.so]
  attach_function at /opt/logstash/vendor/jruby/lib/ruby/shared/ffi/library.rb:241
           LibZMQ at /opt/logstash/vendor/bundle/jruby/1.9/gems/ffi-rzmq-core-1.0.3/lib/ffi-rzmq-core/libzmq.rb:76
           (root) at /opt/logstash/vendor/bundle/jruby/1.9/gems/ffi-rzmq-core-1.0.3/lib/ffi-rzmq-core/libzmq.rb:6
          require at org/jruby/RubyKernel.java:1071
          require at /opt/logstash/vendor/bundle/jruby/1.9/gems/polyglot-0.3.5/lib/polyglot.rb:65
           (root) at /opt/logstash/vendor/bundle/jruby/1.9/gems/ffi-rzmq-core-1.0.3/lib/ffi-rzmq-core.rb:1
          require at org/jruby/RubyKernel.java:1071
          require at /opt/logstash/vendor/bundle/jruby/1.9/gems/polyglot-0.3.5/lib/polyglot.rb:65
           (root) at /opt/logstash/vendor/bundle/jruby/1.9/gems/ffi-rzmq-core-1.0.3/lib/ffi-rzmq-core.rb:3
          require at org/jruby/RubyKernel.java:1071
          require at /opt/logstash/vendor/bundle/jruby/1.9/gems/polyglot-0.3.5/lib/polyglot.rb:65
           (root) at /opt/logstash/vendor/bundle/jruby/1.9/gems/ffi-rzmq-2.0.4/lib/ffi-rzmq.rb:1
           (root) at /opt/logstash/vendor/bundle/jruby/1.9/gems/ffi-rzmq-2.0.4/lib/ffi-rzmq.rb:66
             each at org/jruby/RubyArray.java:1613
           (root) at /opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-zeromq-0.1.5/lib/logstash/inputs/zeromq.rb:1
         register at /opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-input-zeromq-0.1.5/lib/logstash/inputs/zeromq.rb:76
      synchronize at org/jruby/ext/thread/Mutex.java:149
     start_inputs at /opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.0.rc3-java/lib/logstash/pipeline.rb:148
     start_inputs at /opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.0.rc3-java/lib/logstash/pipeline.rb:147
              run at /opt/logstash/lib/logstash/runner.rb:126
             call at org/jruby/RubyProc.java:271
              run at /opt/logstash/lib/logstash/runner.rb:131
             call at org/jruby/RubyProc.java:271
              run at /opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.0.rc3-java/lib/logstash/pipeline.rb:80