Apache Impala Interview Questions
Questions Answers Views Company eMail

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

44

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?

43

Can I do trforms or add new functionality?

69

Why does my insert statement fail?

39

Is impala production ready?

39

What are the most memory-intensive operations?

31

What are the main features of impala?

40

Where can I get sample data to try?

36

Where can I find impala documentation?

66

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

65

Is hive an impala requirement?

44

When does impala hold on to or return memory?

74

Is there an update statement?

96

Does cloudera offer a vm for demonstrating impala?

43

How do I try impala out?

54


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Un-Answered Questions { Apache Impala }

Is hive an impala requirement?

44


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

98


How is impala metadata managed?

36


How apache impala works with cdh?

49


Why do I have to use refresh and invalidate metadata, what do they do?

56


What are the most memory-intensive operations?

31


What are the differences between relational databases and impala?

50


Why is space not freed up when I issue drop table?

66


How can it help for avoiding costly modeling?

36


Is impala production ready?

39


What happens when the data set exceeds available memory?

89


Describe impala shell (impala-shell command)?

40


Does impala support generic jdbc?

35


What is impala data types?

41


Are results returned as they become available, or all at once when a query completes?

56