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I understand that Pig Latin is a data flow language. In that sense it should be theoretically possible to execute Pig Latin in any framework though currently and it is meant to be executed in a Hadoop enviornment. How hard would it be to switch Pig Latin to run on a different framework? Are there any extension points for this if at all or is Pig Latin is tightly coupled to Hadoop?
PigLatin is tightly coupled to Hadoop. Basically, the PigLatin script is interpreted into a series of Hadoop MapReduce jobs and there isn’t really much way of swapping out that underlying data computation layer.
You can write a custom loader and custom writer to load from and store to custom data stores, but in the end it is still starting a Hadoop MapReduce job.