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?

Does cloudera offer a vm for demonstrating impala?

How do I try impala out?

Un-Answered Questions { Apache Impala }

What is impala’s aggregation strategy?

Can impala do user-defined functions (udfs)?

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?

What is the no. Of threads created by impala?

What is impala?

128

What load do concurrent queries produce on the namenode?

Why does my select statement fail?

Is there an update statement?

What are the differences between relational databases and impala?

What impala use for authentication?

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

What is impala data types?

How does impala compare to hive and pig?

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

What size is recommended for each node?

188

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