Were there any issue while kerberizing the cluster? Did it fininshed without any error ? ... View more

Hi @Nicola Marangoni Can you login to ambari and click on Kerberos->Advance and check if the principals are present /created for respective services properly ? Check the screenshot below - ... View more

@Amit Tewari From the usersync log it seems that ranger is able to sync with your ldap, below are the logs - "LdapUserGroupBuilder [UnixUserSyncThread] - Updating user count: 1, userName: atewari," "LDAPUserGroupBuilder.updateSink() completed with user count: 2" Are you able to see "atewari" use in Ranger UI? Enable debug in ranger - "vi /usr/hdp/current/ranger-admin/ews/webapp/WEB-INF/log4j.xml" replace info with debug in above file and restart ranger. Check xa-portal.log and see if you are able to see any error. ... View more

@Roberto Sancho How did you install Ambari Server? Did you use RPM ? There are 2 ways to install - 1. If you have install ambari server and now if you are trying to install HDP from ambari, then ambari takes care of packages to be installed on the nodes which you are going to add to HDP cluster via Ambari UI. 2. You can also do manual registration of hosts which requires no password to be provided in ambari UI. Please check the steps below for manual host registration - https://ambari.apache.org/1.2.1/installing-hadoop-using-ambari/content/ambari-chap6-1.html Once done with above steps, in ambari UI on "ADD HOST" wizard click on manual registration as shown below - ... View more

No. You just need to make sure you have passworless ssh configure from ambari host to node a01hop04. make sure a01hop04 has firewall and selinux disabled. ... View more

@Roberto Sancho Can you click on the "installing" which is side to the progress bar. It will display logs. You can check on which steps its taking long time. If possible pls share the logs. ... View more

@Elitsa Milanova Check this blog for getting fair idea for the values.- http://hortonworks.com/blog/managing-cpu-resources-in-your-hadoop-yarn-clusters/ http://crazyadmins.com/tag/tuning-yarn-to-get-maximum-performance/ ... View more

1. Can you make sure the username and password are correct. Try login from cli just to make ensure. 2. Can you attached ranger usersync.log and xa-portal.log. ... View more