[root@chef ~]# knife cookbook upload -a
/usr/lib64/ruby/gems/1.8/gems/rest-client-1.6.1/lib/restclient/abstract_response.rb:50: warning: parenthesize argument(s) for future version
INFO: ** zabbix-agent **
INFO: Saving zabbix-agent
INFO: Validating ruby files
INFO: Validating templates
INFO: Syntax OK
INFO: Generating Metadata
ERROR: Connection refused connecting to localhost:4000 for /sandboxes, retry 1/5
ERROR: Connection refused connecting to localhost:4000 for /sandboxes, retry 2/5
ERROR: Connection refused connecting to localhost:4000 for /sandboxes, retry 3/5
ERROR: Connection refused connecting to localhost:4000 for /sandboxes, retry 4/5
ERROR: Connection refused connecting to localhost:4000 for /sandboxes, retry 5/5
/usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/rest.rb:292:in `retriable_rest_request': Connection refused - Connection refused connecting to localhost:4000 for /sandboxes, giving up (Errno::ECONNREFUSED)
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/rest.rb:214:in `api_request'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/rest.rb:121:in `post_rest'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/cookbook_uploader.rb:26:in `upload_cookbook'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/knife/cookbook_upload.rb:57:in `run'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/cookbook_loader.rb:162:in `each'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/cookbook_loader.rb:161:in `each'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/knife/cookbook_upload.rb:55:in `run'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/knife/cookbook_upload.rb:80:in `humanize_auth_exceptions'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/knife/cookbook_upload.rb:53:in `run'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/knife.rb:127:in `run'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/application/knife.rb:121:in `run'
        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/bin/knife:25
        from /usr/bin/knife:19:in `load'
        from /usr/bin/knife:19