What is impala?

Why we need impala hadoop?

Describe impala shell (impala-shell command)?

Can any impala query also be executed in hive?

State some advantages of impala?

Does impala use caching?

How are joins performed in impala?

What are distinct operators in impala?

What is troubleshooting for impala?

Can impala be used for complex event processing?

How do I configure hadoop high availability (ha) for impala?

How do I know how many impala nodes are in my cluster?

What are the differences between relational databases and impala?

On which hosts does impala run?

State some disadvantages of impala?