This solution is works for me on HDP 3.1.4 Ambari 2.7   Thanks for sharing. ... View more

A bit late to the party, but hope the following will help.   By calling the main functions of the classes,  UnixUserGroupBuilder, PolicyMgrUserGroupBuilder or LdapUserGroupBuilder is not going to work, since the main classes of these are only initializing the classes. In order to start the actual sync, the function updateSink needs to be called. During startup this is handled by the class org.apache.ranger.usergroupsync.UserGroupSync thus, calling its main function will trigger the syncing using the configuration that you set in your cluster.   A complete example for triggering the usersync manually could be: java -Dlogdir=/var/log/ranger/usersync -cp "/usr/hdp/current/ranger-usersync/dist/unixusersync-1.2.0.3.1.5.135-2.jar:/usr/hdp/current/ranger-usersync/lib/*:/etc/ranger/usersync/conf" org.apache.ranger.usergroupsync.UserGroupSync for HDP and java -Dlogdir=/var/log/ranger/usersync -cp "/opt/cloudera/parcels/CDH/lib/ranger-usersync/dist/unixusersync-2.1.7.1.7.0-460.jar:/opt/cloudera/parcels/CDH/lib/ranger-usersync/lib/*:/etc/ranger/usersync/conf" org.apache.ranger.usergroupsync.UserGroupSync for CDP. ... View more

I see that you use Active DIrecyory   Did you use the below property?   +++ <property> <name>hive.server2.authentication.ldap.Domain</name> <value>AD_Domain</value> </property> +++ ... View more

I faced the same exception with Ambari 2.7.1 with different scenario. The scenario happens like that: I was trying to install Apache Solr with HDP Search as mpack. I wrongly installed the old version of mpack and when I restart the Ambari, Ambari couldn't open. I looked into ambari-server.log and the error was like below: An unexpected error occured during starting Ambari Server. com.google.inject.ProvisionException: Unable to provision, see the following errors: 1) Error injecting method, java.lang.NullPointerException at org.apache.ambari.server.api.services.AmbariMetaInfo.init(AmbariMetaInfo.java:250) at org.apache.ambari.server.api.services.AmbariMetaInfo.class(AmbariMetaInfo.java:123) while locating org.apache.ambari.server.api.services.AmbariMetaInfo for field at org.apache.ambari.server.controller.AmbariServer.ambariMetaInfo(AmbariServer.java:179) at org.apache.ambari.server.controller.AmbariServer.class(AmbariServer.java:179) while locating org.apache.ambari.server.controller.AmbariServer 1 error at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1028) at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1054) at org.apache.ambari.server.controller.AmbariServer.main(AmbariServer.java:1101) Caused by: java.lang.NullPointerException at org.apache.ambari.server.stack.StackModule.mergeRoleCommandOrder(StackModule.java:1336) at org.apache.ambari.server.stack.StackModule.finalizeModule(StackModule.java:244) at org.apache.ambari.server.stack.StackManager.fullyResolveStacks(StackManager.java:413) at org.apache.ambari.server.stack.StackManager.<init>(StackManager.java:186) at org.apache.ambari.server.stack.StackManager$$FastClassByGuice$$33e4ffe0.newInstance(<generated>) at   I tried to start ambari-server as you said with --skip-database-check but it still couldn't open. Then I install the mpack with the same version before it down again, with this command:   sudo ambari-server install-mpack --mpack=/tmp/hdf-ambari-mpack-3.2.0.0-520.tar.gz --verbose   and I restart the ambari-server. Then ambari-server works without problem and I can access Ambari  from web. Perhaps it helps. ... View more

Can you specify the location of json files which needs to be checked. ... View more

@Edgar Daeds Thanks, This worked. ... View more

@saravanan gopalsamy Great to know that your issue is resolved. It will be wonderful if you can click on the "Accept" button on this thread to mark this comment as answered, that helps community users to quickly find out the correct answer. ... View more

These are the errors in thrift server logs: Caused by: org.apache.thrift.transport.TTransportException: Invalid status 80 at org.apache.thrift.transport.TSaslTransport.sendAndThrowMessage(TSaslTransport.java:232) at org.apache.thrift.transport.TSaslTransport.receiveSaslMessage(TSaslTransport.java:184) at org.apache.thrift.transport.TSaslServerTransport.handleSaslStartMessage(TSaslServerTransport.java:125) at org.apache.thrift.transport.TSaslTransport.open(TSaslTransport.java:271) at org.apache.thrift.transport.TSaslServerTransport.open(TSaslServerTransport.java:41) at org.apache.thrift.transport.TSaslServerTransport$Factory.getTransport(TSaslServerTransport.java:216) ... 5 more ... View more

It is recommended to disable the cron in zeppelin as there is no validation if the user is allowed to run as the hive/hdfs or any other user specified in the cron field, meaning any user can set it to be run as any user. disbale is possible from 2.6.5, for previous versiosn please engage the hortonworks support. ... View more

Thanks for your explanation @Michael Young ! Helped a lot. ... View more