HDFS Replication

“HDFS replication is not decided by Namenode”, surprised ? It is common misconception that replication is dictated by the master node(name node), which is wrong. The replication is…

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Nagios

Nagios Configuration Before You Begin Nagios is quite powerful and flexible, but it can take a lot of work to get it configured just the way you’d like…

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Bash Scripting

1. How to deference a variable in Bash. Suppose we have i=10;j=i bash$ echo ${!j} – will give 10 2. Rename extensions of files from “.doc to .txt”….

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Linux Interview

#Important Topics I know the list is long, but this can be used as a Study Guideline. Will try to post on as many topics as I could,…

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