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Recently, I was having a discussion with my friend over the features of SparkSQL when we came across this question. Are they ACID transactions? Does SparkSQL follow CAP theorem?
I am a little new to this field, help me out. Thanks in advance.
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SparkSQL is a query language and not a storage like Hive or MYSQL. Although it can register table which can be used by others, its only temporary. SparkSQL supports what the underlying databases support.
SparkSQL follows the Relational database model. It does not support Hive transactions ("ACID").
Following are few useful posts:
http://www.cloudera.com/documentation/enterprise/release-notes/topics/cdh_rn_spark_ki.html http://db-engines.com/en/system/Oracle+NoSQL%3BSAP+IQ%3BSpark+SQL