Sorted:

How does the Kafka Producer handle message sending failures?

What is Kafka’s message model?

Utilize indexes in Hive to improve query performance.

What does SerDe in Hive mean?

How to import and export data in Hive?

How to write and use custom functions in Hive.

How to ensure that only one application is running on Android?

How does user permission management work in Hive?

How are Kafka message logs stored?

dependency relationships and join operations in Storm?