Error in creating map-reduce job while installing oozie

Question

Error: IO_ERROR : java.io.IOException: Error while connecting Oozie server. No of retries = 4. Exception = Connection refused

Answer 1

1) check oozie service running by typing

   oozie admin -oozie http://OOZIE_IP:11000/oozie -status

if it doesnt show System mode: NORMAL, oozie is not started correctly

2) set in core-site.xml in hadoop config ,

 <property>
    <name>hadoop.proxyuser.oozie.hosts</name>
    <value>*</value>
  </property>
    <property>
    <name>hadoop.proxyuser.oozie.groups</name>
    <value>*</value>
  </property>

Hope this works