Apache Impala Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Impala Interview Questions

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What kinds of impala queries or data are best suited for hbase?

Is impala intended to handle real time queries in low-latency applications or is it for ad hoc queries for the purpose of data exploration?

Can I do trforms or add new functionality?

Why does my insert statement fail?

Is impala production ready?

What are the most memory-intensive operations?

What are the main features of impala?

Where can I get sample data to try?

Where can I find impala documentation?

What features from relational databases or hive are not available in impala?

Is hive an impala requirement?

When does impala hold on to or return memory?

Is there an update statement?

162

Does cloudera offer a vm for demonstrating impala?

How do I try impala out?

Un-Answered Questions { Apache Impala }

Is avro supported?

When does impala hold on to or return memory?

Can impala be used for complex event processing?

169

What are impala architecture components?

How much memory is required?

How does impala compare to hive and pig?

How to control access to data in impala?

What load do concurrent queries produce on the namenode?

Can any impala query also be executed in hive?

What are the most memory-intensive operations?

Is there an update statement?

162

Where can I get sample data to try?

How is impala metadata managed?

Does impala performance improve as it is deployed to more hosts in a cluster in much the same way that hadoop performance does?

164

What is the no. Of threads created by impala?

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