@Prakash Punj try rebooting that server ans restart the Ambari server.. Then log you upload says "Port in use: pp-hdp-m:50070 at org.apache.hadoop.http.HttpServer2.openListeners" If you want help then you need to follow some tips from this forum by elimination we cn come to your rescue ! ... View more

Kill the process that is using the port 50070 15:12:21,968 ERROR namenode.NameNode (NameNode.java:main(1712)) - Failed to start namenode. java.net.BindException: Port in use: pp-hdp-m:50070 at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:919) at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:856) at ... View more

@Robin Dong Any updates? ... View more

[root@hostx .ssh]# ls authorized_keys id_rsa id_rsa.pub known_hosts The first one contains the private key, the second one contains the public key for user root. Now run the command cat /root/.ssh/id_rsa.pub > /root/.ssh/authorized_keys it will add the contents of the root’s file id_rsa.pub to a file authorized_keys. Therefore, if a user will connect to this machine by SSH and will specify the correct private key, this machine will look up into authorized_keys and will know that this is root. remember to copy the authorized_keys to all the servers in the cluster Also check the permissions on the .ssh directory, id.rsa,authorized_keys and id_rsa.pub keys ... View more

@rbalam so do you have the mysql-connector-java on the Ambari server ? If not copy it please. ... View more

@rbalam your Ambari installation looks good exit code 0 ,but am puzzled . can you copy and paste in here your mysql setup for ambari steps? ... View more

@rbalam Try this steps to clean up your failed installation, just to make sure did you in th eeralier steps copy mysql-connector-java.jar to /usr/share/java/ directory to both servers ? ... View more

@rbalam I have attached a document on how to install your Ambari server successfully you will not find any better document than this .Please enjoy and revert set-up-mysql-for-ambari.pdf I forgot to include the syntax to connect remotely to MySQL server but it should be fine The Ambari Server host needs the mysql-connector-java driver installed to be able to communicate with the database you will need to install it on the local and remote server ... View more

@Rainer Geissendoerfer To fix this, SSH into your HDP instance VM and edit: /etc/hadoop/conf/core-site.xml and change the following config to add “localhost”. Save and restart the relevant services or just reboot your HDP VM instances. <property> <name>hadoop.proxyuser.hive.hosts</name> <value>sandbox.hortonworks.com,127.0.0.1,localhost</value> </property> core-site.xml ... View more