File::CleanupTask is a CPAN module that the company I work at has opensourced. This is a presentation I gave about it at the London Perl Mongers technical meeting in August 2012.
File::CleanupTask is a CPAN module that the company I work at has opensourced. This is a presentation I gave about it at the London Perl Mongers technical meeting in August 2012.
Linux command line cheatsheet contains useful day to day commands that are used when working with Linux Mint/Ubuntu terminal and simplifies understanding of what these commands do and when to use them.
Linux command line cheatsheet contains useful day to day commands that are used when working with Linux Mint/Ubuntu terminal and simplifies understanding of what these commands do and when to use them.
The NoSQL movement has introduced four new database architectural patterns that complement, but not replace, traditional relational and analytical databases. This presentation will introduce these four patterns and discuss their relative strengths and weaknesses for solving a variety of business problems. These problems include Big Data (scalability), search, high availability and agility. For each type of problem we look at how NoSQL databases take different approaches to solving these problems and how you can use this knowledge to find the right database architecture for your business challenges.
Hadoop has proven to be an invaluable tool for many companies over the past few years. Yet it has it's ways and knowing them up front can safe valuable time. This session is a run down of the ever recurring lessons learned from running various Hadoop clusters in production since version 0.15.
What to expect from Hadoop - and what not? How to integrate Hadoop into existing infrastructure? Which data formats to use? What compression? Small files vs big files? Append or not? Essential configuration and operations tips. What about querying all the data? The project, the community and pointers to interesting projects that complement the Hadoop experience.
5. cd $HADOOP_HOME
sudo mkdir data
sudo nano /usr/local/hadoop/data/small.txt
hello how are you
hello I am fine
I am very good
hdfs dfs -ls /
hdfs dfs -mkdir /data
hdfs dfs -mkdir /data/small
hdfs dfs -copyFromLocal
/usr/local/hadoop/data/small.txt /data/small/small.txt
hdfs dfs -cat /data/small/small.txt
hdfs dfsadmin -report
