Interviewer started to ask questions based on what i have kept in resume. His questions started from basic to advanced. What is bucketing and partitioning and use cases? Difference between group and co group in Pig ? Day to day activities in my job? Project flow ? Accumulators and broad cast variables in spark? How spark is fault tolerant? Distributed cache in hadoop? What types of fileformats used in hive? Default mappers in sqoop? How much of data you handle daily or monthly? Why hive and pig used? On Map reduce basic programming? like how you will write program just to test your knowledge on MapReduce. If you store file from HDFS to pig using PIGSTORAGE in grunt shell but if that file is not actually available in that HDFS path will it work?
Hadoop Developer Interview Questions
329 hadoop developer interview questions shared by candidates
Basics of datawarehousing concepts hadoop eco system basics projects Sql Basics
what is combiner?
Spark RDD Transformation vs Action
Spark: Optimization techniques How do you determine the Spark-Submit options What are the critical issues/failure you recently faced and how did you resolve How to assure the fault tolarance Kafka: What is the cluster size What is ISR How do you assure exactly-once delivery (message) What is the importance of Zookeeper in Kafka Streaming: What is backpressure and what is the use of it How to recover from a failure
How to troubleshoot slow running job in the cluster ?
1. COmplete core java and algorithms even they can ask on linkedlist 2. Hadoop usecase scenarios. Just explain what you know & did 3.Hadoop questions . COmplete technical questions 4. Manager use case schenarios
hadoop ecosystem
Map reduce flow, sqoop import,partition, bucketing ,joins
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