Apache Impala Interview Questions
Un-Answered Questions { Apache Impala }
When does impala hold on to or return memory?
What is impala data types?
Why does my select statement fail?
What is the no. Of threads created by impala?
State use cases of impala?
How is impala metadata managed?
Why is space not freed up when I issue drop table?
Why do I have to use refresh and invalidate metadata, what do they do?
What are the main features of impala?
What impala use for authentication?
Can impala do user-defined functions (udfs)?
Compare hive, hbase, and impala?
What size is recommended for each node?
How are joins performed in impala?
What is impala’s aggregation strategy?
