Twitter has vastly improved search speed using a Java server called Blender, the company announced on the Twitter Engineering blog.
The change has reduced search latencies by approximately three times (from 800ms to 250ms), Twitter claims, and CPU load on Twitter's front-end servers was cut in half.
Twitter illustrates the advantages of the new search architecture with the recent spike in search queries after the Tōhoku earthquake and tsunami hit Japan on March 11, which significantly increased search latencies. After the deployment of Blender, average search latency dropped to slightly more than 225ms and remained stable ever since.
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