Jayesh Thakrar is a Sr. Data Engineer at Conversant (http://www.conversantmedia.com/). He is a data geek who gets to build and play with large data systems consisting of Hadoop, Spark, HBase, Cassandra, Flume and Kafka. To rest after a good day's work, he uses OpenTSDB with 500+ million metric data points a day to keep an eye on all the systems.