@ Vinit_Kratin, If low response time is a must, then Hive is not an option, Impala should be faster. HBase designed tables require a row key, which means, all data you want to retrieve will need this key to be queried against HBase. So for your event based data, if you need to use an event id to store and retrieve data, then hbase might be suitable. I still suggest you to go through details of differences between HBase and Hive and Impala to get a better understanding. Google is your friend. Cheers Eric ... View more