Q 1. What is the Retention Period in Kafka Topic ? Answer : Kafka events or Messages older than retention period will not be available for Consumer to Consume. Because it gets deleted. Kafka Retain the data only for retention period. Let;s say if Retention period is 7 days, ThenRead More →
1. Let’s say a Hive table is created as an external table. If we drop the table, will the data be accessible? Answer: The data will be accessible even if the table gets dropped. We can get the data from the table’s HDFS location. 2. A Hive table is createdRead More →
What is bucketing and what is the use of it? Answer: Bucketing is an optimization technique which is used to cluster the datasets into more manageable parts, which helps to optimize the query performance. Check the below post with the example. https://bigdataprogrammers.com/bucketing-in-hive/ What is Over Partitioning and what is theRead More →
What is Hive and why it is useful? Hive is a data warehouse application where data gets stored in the structure format. It is used to querying and managing large datasets. It provides a SQL-like interface to access the data which is also called HiveQL(HQL). What is the advantage ofRead More →
