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Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?
744How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
693Write a Hive UDF that returns a sentiment score. For example, if good = 1, bad = -1, and average = 0, then a review of a restaurant states "Good food, bad service," your score might be 1 - 1 = 0.
682Suppose that your data is stored in collections, for instance, some binary data, message data or metadata is all keyed on the same value. Will you use HBase for this?
158
What is the difference between Spark Transform in DStream and map ?
What is spark tool in big data?
What are the two main parts of the hadoop framework?
What is pagerank in graphx?
Define a datanode?
What is flume interceptor?
What is Apache Hadoop?
Is hive suitable to be used for oltp systems? Why?
Which code is used to open a connection in hbase?
What's rdd?
How to show up details in pig ?
Explain the concept of cassandra data model?
How many ways we can create rdd in spark?
What is dynamic partitioning and when is it used?
What is a rack?
