Iac Search and Media, Inc.

Bhawna Singh

Vaijanath N Rao

An offline system of a question and answer system includes a batch update crawl cluster that includes a crawl database within the file system, and a map reducer within the index controller, the map reducer having a reducer core with a plurality of slow queues that retrieve the content from the crawl database, and a reducer adapter that writes an output of the reducer core into the hierarchical database. The offline system further includes a fast update crawl cluster that includes a crawl database within the file system, and a map reducer within the index controller, the map reducer having a reducer core with a plurality of fast queues that retrieve the content from the crawl database at a faster frequency than the slow queues, and a reducer adapter that writes an output of the reducer core into the hierarchical database.

Batch crawl and fast crawl clusters for question and answer search engine

A question and answer system for providing results to requests comprising an online system and an offline system. The offline system includes a file system, a hierarchical database and an index controller having at least one reducer that retrieves content from the file system and at least one writer that maintains the data store with the content retrieved by the reducer, and maintains the hierarchical database with data reflecting the content in the data store. The offline system includes an image queue, an index controller that updates the image queue with data representing content in the data store that include images, an image extraction service having a thumbnailer generating thumbnails for the images, an uploader and at least one static image server, the uploader uploading the thumbnails and images to the static image server.

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Fremont, CA, United States of America

Bhawna Singh