@henryon wen Ambari is doing a service check to ensure that the UserSync process is up and running and it can be safely ignored. ... View more

@SangHun Baek This may be related to this https://issues.apache.org/jira/browse/TEZ-3017 https://issues.apache.org/jira/browse/HIVE-12766 This is fixed in 2.4 Workaround is : Disable ATS. YARN => Configs => Advanced. Then search "yarn.timeline-service.enabled", then please uncheck this. After saving changes Ambari will as you to restart related services, then please restart those. Once restarting has been completed, please feel free to stop "App Timeline Server" ... View more

@sivasaravanakumar k Off topic : http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.0/bk_search/index.html Nutch --> http://wiki.apache.org/nutch/NutchHadoopSingleNodeTutorial You can use the same for multinode cluster ... View more