The CARFAX vehicle history database contains over twelve billion documents in a twelve shard cluster that replicates to multiple data centers. This will be a step by step walk through of how we deploy our servers, manage high volume reads and writes, and our configuration for high availability. By automating everything from the operating system install up we are able deploy complete replica clusters quickly and efficiently. Using distributed processing and message queuing we load millions of new documents each day with a projected growth over a billion records per year. Through the use of tagging, server configuration, and read settings we deliver content with high consistency and availability.
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