@Marco Silva Can you pass me output of below command - Login to ambari DB and execute - ambari=> select * from clusters ; ... View more

@Sachin Ambardekar Can you uninstall ambari agent on the datanode3 and install ambari agent with same version as ambari-server on datanode3 [ie. 2.4.2.0-136] Ambari agent version output should look something like - [ambari@datanode3 ~]$ ambari-agent --version 2.4.2.0-136 ... View more

@rahul gulati Check below things - 1. /etc/ambari-agent/conf/ambari-agent.ini has entry pointing to ambari server -> server=<ambari_host> 2. Check if iptables and selinux are stopped and disabled. 3. Try restarting the agent $ambari-agent restart 4. Check if there is issue with /etc/hosts file. Wrong/incorrect intry in /etc/hosts file can create such issue. ... View more

PLease check if you have same repo file for ambari in /etc/yum.repos.d/ folder. You can copy ambari repo file from ambari server node to datanode3 and reinstall ambari agent package. yum remove ambari-agent yum install ambari-agent This should resolve the issue. ... View more

@Sachin Ambardekar Can you make sure ambari server version and agent version are same -using below command - ambari-server --version -- [ambari server] ambari-agent --version -- [datanode3] Below error clearly states its version mismatch issue - ERROR 2017-02-21 22:29:57,286 Controller.py:155 - Cannot register host with non compatible agent version, hostname=datanode3.localdomain, agentVersion=2.1.1, serverVersion=2.4.2.0 ... View more

This is created on Centos6. Need to check on RHEL7. ... View more

@Joel Patterson You can ignore the crc check errors. Those will not impact on ldap startup. For "ldap_sasl_interactive_bind_s: Invalid credentials (49" it seems there is either wrond DN or password. Can you please check and confirm. ... View more

@jzhang From the error its suspected that you have not properly defined principal name in configs - Can you please revisit the configs again "Kerberos principal should have 3 parts: hive" It should be - "hive/_HOST@REALM" Check properties below in HIVE configs - hive.server2.authentication.kerberos.principal hive.metastore.kerberos.principal ... View more

@rahul gulati Can you make sure the output of "$hostname" and "$hostname -f" are same? ... View more

@Maher Hattabi Please check link below - https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/WebHDFS.html For examples also refer - https://dzone.com/articles/hadoop-rest-api-webhdfs https://bighadoop.wordpress.com/2013/06/02/hadoop-rest-api-webhdfs/ ... View more