Hadoop Installation

Change Hostname of VM
  Hope you are doing well. Please open the network file by giving the command below and  change the hostname sudo vi /etc/sysconfig/net...
Sun, 10 Apr, 2016 at 7:04 AM
Connection Refused Problem in Multinode Cluster at the time of datanode login
  Please restart the sshd service in each node and try to ssh login from namenode to each node. 1) To restart sshd service : sudo service sshd...
Wed, 13 Apr, 2016 at 11:02 AM
Install Apache Ambari
  Hope you are doing well. We sincerely apologize for the delay. Apache Ambari is not comaptible with Ubuntu. Please download Cent...
Wed, 13 Apr, 2016 at 12:06 PM
My SQL on edureka VM
Hello Venkat, Hope you are doing well. IN EDUREKA VM: sudo service mysqld restart mysql -u root -p    (N...
Fri, 15 Apr, 2016 at 4:00 PM
Not able to connect local VM through putty
1) Login as root   su 2) Stop the firewall service iptables stop 3) Restart the sshd service   service sshd restart F...
Sun, 17 Apr, 2016 at 4:53 PM
PriviledgedActionException as:root cause:java.net.ConnectException: Connection refused
  Step 1 : Stop all the daemons, Add the user to sudo file for all the nodes. Please make the following change as given below. 1) Login ...
Sun, 17 Apr, 2016 at 7:46 PM
How many EC2 instance I can Create???
Dear Dharani, Hope you are doing well, By default, when you create an EC2 account with Amazon, your account is limited to a max...
Mon, 2 May, 2016 at 12:34 AM
Downgrade Ubuntu
  Hope you are doing well. Downgrading Ubuntu version is possible to some extent. With enough fighting, it can be done. However the result you en...
Sun, 17 Apr, 2016 at 9:45 PM
Linux Basic Commands
Dear Mazher, Hope you are doing well, Here I am sending you some documents to learn basic and fundamental linux commands. ...
Mon, 2 May, 2016 at 12:33 AM
Datanode is not running / datanode not showing in jps
  Hope you are doing well, Please follow the steps given below: Step 1 : Stop all the daemons first   stop-all.sh Step...
Sun, 24 Apr, 2016 at 12:40 PM