Musings of a Reductionist

Rants on tech, life and everything in between - Prithiviraj Damodaran

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Post Category → MapR

When to MapReduce ?

posted in Big Data, MapR on August 27, 2016 by Prithiviraj Damodaran

Someone asked me for what problems MapReduce is not good for, I am flipping the question and answering what problems it works best for. Say, someone asked when to use recursive logic vs iterative logic, there is a bit of grey area there even though some problems clearly lend itself to recursion like graph traversal,… Continue reading →

ElasticSearch on Hadoop

posted in Big Data, ElasticSearch, Hadoop, MapR, NoSQL and Search on September 26, 2014 by Prithiviraj Damodaran

Some background on how ElasticSearch indexes documents  For those who already have a back ground on Elastic Search, it is just a special purpose full text search document based data store with real time indexing abilities. How does Elastic Search does this? If you are already aware of the Search engines and the underlying data… Continue reading →

Scheduling recurring jobs (cron like) with oozie

posted in Hadoop, MapR on August 27, 2014 by Prithiviraj Damodaran

Any one familiar with cron will appreciate the fact that it is possible to configure a workflow to schedule any type of jobs like a map-reduce jobs or HIVE job or sqoop jobs in Hadoop using Apache oozie. Some good examples here

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