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Big Data Udemy Course Notes
Hadoop The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using simple programming models. Hadoop Common: The common utilities that support the other Hadoop modules.Hadoop Distributed File System (HDFS™): A distributed file system that provides high-throughput access to application data.Hadoop YARN: A […]
Andharban Trip – Part 1
Leaving home @ 5 am Sunday morning is that time when people are holed up into their beds; the only day of the week when no alarm is strong enough to pull them out of it and infact some of us start our fay only after half of it has passed. But for some of us, […]
How VPN protects the identity
VPN helps to protect the requestor to go through a resource without letting the requested entity know who the requestor is. Let’s say there is an SSL connection to google.com and we search something Translates to GET request – > www.google.com/q=search (Layer 7) Layer 4 – [ SourcePort – 123 ][ www.google.com/q=search – Body ][ […]
Bloom Filters
They are a probabilistic data structure. It is just a bit array. This is used in conjunction with Disk. So every time instead of querying the disk once can check the bloom filter and know if it’s absent. Let’s take size as 8. _ _ _ _ _ _ _ _ _ If you get […]