that can work. What I mean compute close to data means both nodemanager and datanode should be on same node. ... View more

@sun pepper port 8042 belongs to YARN nodemanager API. Please see this https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.2/bk_installing_manually_book/content/configure_hue.html also make sure ip4firewall is off as well as SELinux. If all else fails try using telnet to that port to make sure it is open. ... View more

@Edgar Daeds glad you got it resolved and provided solution. Thank you ... View more

ERROR 2016-10-26 08:09:38,619 script_alert.py:119 - [Alert][yarn_nodemanager_health] Failed with result CRITICAL: ['Connection failed to http://xxxxx.example.com:8042 Can you make sure firewall ports are open to this machine and network connectivity is functional. ... View more

@brahmasree b please review information in this doc https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.3/bk_secure-storm-ambari/content/ch_secure-storm-designating-node.html Add the following settings to the /etc/storm/conf/storm.yaml configuration file: nimbus.seeds: <nimbus-host-array> nimbus.thrift.port: 6667 java.security.auth.login.config: "/etc/storm/conf/client_jaas.conf" storm.thrift.transport: "backtype.storm.security.auth.kerberos.KerberosSaslTransportPlugin" where <nimbus-host-array> is an array of hostnames running Nimbus. (The value should come from /etc/storm/conf/storm.yaml .) For example: nimbus.seeds: ["c6401.ambari.apache.org", "c6402.ambari.apache.org"] ... View more

@sun pepper please paste the ambari agent logs. ... View more

@wbu securing access to the Nimbus UI is only with Kerberos and SPNEGO AUTH https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.3/bk_secure-storm-ambari/content/ch_secure-storm-ui.html so unless you just want to protect from submitting topologies with Apache Ranger, you have to enable Kerberos ... View more

@Raviraj Murdeshwar please uninstall ambari-agent, remove all associated directories like /etc/ambari-agent, /var/lib/ambari-agent, etc. Then delete the following directory /usr/lib/python2.6/site-packages/ambari-agent after that install ambari-agent again. ... View more

@Laurent lau can you do a hard reset of the browser to clear the cache "ctrl-shift-R" and try again? If not, try another browser. This may be a bug. Please paste the console messages from browser if everything continues to fail. ... View more