Tamil Selvan KApache TezYou might have about Tez a lot if you are using HDP distribution of Hive but if you are new to the HDP/CDP or have used Hive on MR only…4 min read·Oct 31, 2020----
Tamil Selvan KHive Datanucleus ConnectionPoolConnectionPool: A “connection pool” is a cache of database connection objects. Connection pools promotes the reuse of connection objects…3 min read·Oct 29, 2020----
Tamil Selvan KLocks in HiveDatabase has locks and Hive is no different. Locks in database can be either Read Lock or Write Lock. Locks are used when concurrent…1 min read·Oct 26, 2020----
Tamil Selvan KHive LLAP CachingCache is used mostly for BI queries as compared to ETL queries. hive.llap.io.threadpool.size is at the node level and it defines the…1 min read·Oct 26, 2020----
Tamil Selvan KHive 3 (Architecture)Hive 3 has seen lot of changes in terms of Architecture like default Table type as ACID, deprecating hive cli (thick Jdbc client) and only…2 min read·Oct 26, 2020----
Tamil Selvan KHadoop Yarn ATS Rest APIsFor Yarn application, to fetch application’s data we can use Rest APIs on ATS below are some reference links:1 min read·Oct 25, 2020----
Tamil Selvan KOrc Split Strategies (Hive)What strategy ORC should use to create splits for execution. The available options are “BI”, “ETL” and “HYBRID”.1 min read·Oct 25, 2020----