viknesh-iit / Learningspark

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Questions #4

Open viknesh-iit opened 7 years ago

viknesh-iit commented 7 years ago

https://github.com/mkuthan Windowing Implicit Functions

Page183- Viknesh

What is DStream? What are the input sources Dstreams can be created? Flume/Kafka/HDFS/S3/Kinesis Operations on DStream? Transformation O/P operation What are the special operations Dstream provide? Sliding Windows Why does Spark needs Checkpointing? Will data get lost if the application is restarted?