Hadoop Interview questions


Total available count: 27
Subject - Apache
Subsubject - Hadoop

Who uses Cassandra?

Cassandra is in wide use all around the world, and usage is growing all the time. Companies like Twitter, Reddit, Netflix, eBay, and Ooyala all use Cassandra to power pieces of their architecture, and it is critical to the day-to-day operations of those organizations. to date, the largest publicly known Cassandra cluster by machine count has over 300TB of data spanning 400 machines.

Because of Cassandra's ability to handle high-volume data, it works well for a myriad of applications. This means that it's well suited to handle projects from the high-speed world of advertising technology in real-time to the high-volume world of big-data analytics and everything in between. It is important to know your use case before moving forward to make sure things like good schema design as well as proper deployment.




Next 5 interview question(s)

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What is a BlockManager?
2
What is Speculative Execution of a tasks?
3
What is Task, with regards to Spark Job execution?
4
What is DAGSchedular and how it performs?
5
Please define executors in detail?