Please take a look at some of the (many) posts by BrowserUk around this place that deal with Big Data processing, then carefully consider if you may not want to trim your requirements a bit.

Give a man a fish:  <%-{-{-{-<

In reply to Re^5: storing hash in temporary files to save memory usage by AnomalousMonk
in thread storing hash in temporary files to save memory usage by Anonymous Monk

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