Why Twitter Is a Better Search Engine than Google (MyMediaNotes)

In early October 2010, Twitter introduced their New Search Architecture, claiming it was an improvement to their already impressive search feature. They talked about having developed “a new, modern search architecture that is based on a highly efficient inverted index instead of a rational database.” This improvement came at an opportune time since Twitter was pushing the limits of their server with over 1,000 tweets and 12,000 queries per second. Enter ‘Modified Lucene’. In tech speak, the new search architecture offered significantly improved garbage collection performance, lock-free data structures and algorithms, posting lists that are traversable in reverse order, and efficient early query termination

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