If Kerberos is enabled.Try the below steps:- 1)ambari-server setup-security 2)Enter choice, (1-5): 3 3)Enter ambari server's kerberos principal name (ambari@EXAMPLE.COM): ambari-serve-xxx@REALM.COM 4)Enter keytab path for ambari server's kerberos principal:/etc/security/keytabs/ambari.server.keytab 5)Restart ambari server: ambari-server restart. Do upvote if this article helped. Ref: https://docs.hortonworks.com/HDPDocuments/HDP3/HDP-3.1.0/authentication-with-kerberos/content/set_up_kerberos_for_ambari_server.html ... View more

@Sam Red I told you ....:-) now pat my back with a reward the beer is for next time !!!!! Enjoy Hadoop ... View more

FYI, the tutorial has recently been updated: Learning the Ropes of the Hortonworks Sandbox ... View more

@Alexander Carreño Nice to know you recreated the ambari databases and successfully launched the cluster installation. Depending on your cluster user production,test or trainging,its recommended you learn the good practice from day one. Never use embedded database but create custom database I have a preference for MariaDB or Mysql easy management and open source. You will have to create in advance databases for hive,oozie and ranger but its optional as you could do it during the configuration of the components. The disk partitioning should follow the same logic of in-built HDFS of storing 3 copies,the default replication factor of file blocks distribution in DataNodes. Having said that a good practice is to have 3 separate disk partition and different mount points. I see you are using ubuntu, you should have used custom partition eg mkdir -p /grid/0 mkdir -p /grid/1 mkdir -p /grid/2 mkdir -p /grid/x or another classic layout mkdir /u01 mkdir /u02 mkdir /u03 mkdir /u0x Please see this official cluster planning recommendation Taking into account that you have no component installed I would advice you to start afresh with a good structure. Re-install ubuntu partiion the disk accordingly see above document 3 partition of 300GB could do. Prepare the environment, firewall,ntp,passwordless etc Install MariaDB/Mysql Create the ambari database required Create databases for oozie,hive and ranger optional can be setup later. Chose the correct partition /grid/0 --/grid/x or /u01--/u0x The installation should be successful Please let me know if you need any info ... View more

@Anishkumar Valsalam Is it normal that the xa_portal.log is 0 bytes you attached a wrong file xa_portal_sql.log The debug logs can be found in /var/log/ranger/admin/xa_portal.log Change the debug in /usr/hdp/current/ranger-admin/ews/webapp/WEB-INF/log4j.xml <categoryname="org.apache.ranger"additivity="false"> <priorityvalue="debug"/> <appender-refref="xa_log_appender"/> </category> ... View more

This is complex I believe your problem is you need to forward the traffic to/from the KDC to your Mac. You can do this by SSH tunnelling. That alone is not enough though since SSH port forwarding is only fit for TCP traffic and KDC traffic is UDP. ... View more

Hello everyone, It seems like there is a bug in the newest Ambari version. I took this link as stated in the installation guide of Hortonworks: "wget -nv http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.6.0.0/ambari.repo -O /etc/yum.repos.d/ambari.repo", but when I changed to "wget -nv http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.5.0.3/ambari.repo -O /etc/yum.repos.d/ambari.repo" the installation went through also with HDP2.6.3. Does anyone know why? But anyways now it is working :-). Best regards, Christian ... View more

@Geoffrey Shelton Okot . Sorry i missed the last message . Can you please let me know how to do Accept the Response ? ... View more

Yes, it's the better way to solve problems 🙂 ... View more