Create and Insert to HBase table example

Login into master node : [ec2-user@ip-123-45-67-89 ~]$ sudo hbase shell HBase Shell; enter ‘help<RETURN>’ for list of supported commands. Type “exit<RETURN>” to leave the HBase Shell Version 1.3.1, rUnknown, Fri Sep 22 21:28:57 UTC 2017 hbase(main):001:0> list tables Create table : Command stntax create ‘<table_name>’, ‘<column_family>’ Example hbase(main):004:0> create ’employee_hbase’, ‘cf1’ Insert data into above…

Unzip Multiple Files from Linux Command Line

Problem : [hadoop@spradhan]$ unzip *.zip Archive: a.csv.zip caution: filename not matched: b.csv.zip caution: filename not matched: c.csv.zip caution: filename not matched: d.csv.zip caution: filename not matched: e.csv.zip Solution : [hadoop@spradhan]$ unzip ‘*.zip’ If you run in background, [hadoop@spradhan]$ nohup unzip ‘*.zip’ &

Copy file or folder from amazon S3 to EC2

Install aws cli in the ec2 instance [if not installed] $ sudo yum install aws-cli Configure aws cli $ aws configure AWS Access Key ID [None]: <your_access_key> AWS Secret Access Key [None]:<your_secret_key> Default region name [None]: Default output format [None]: Execute sync command in ec2 instance aws s3 sync s3://<path_to_file> <ec2_local_path>

Installing Maven using Yum on EC2 instance (Amazon Linux)

sudo wget http://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo sudo sed -i s/\$releasever/6/g /etc/yum.repos.d/epel-apache-maven.repo sudo yum install -y apache-maven mvn –version And you all set to run the “mvn” command in ec2 instance. [ec2-user@ip-123-45-67-89 sudhir]$ mvn –version Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T16:41:47+00:00) Maven home: /usr/share/apache-maven Java version: 1.7.0_151, vendor: Oracle Corporation Java home: /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.151.x86_64/jre Default locale: en_US, platform encoding:…