However, the asset has to be copied from somewhere and it isn’t possible to know where in the network it might be without querying each data center. Instead, a good heuristic is to move the asset into the nearest cache after the first cache miss. The minimum possible cache hit latency is achieved if the asset is moved into the nearest cache before the request for it is made, but this kind of prediction is generally not possible. However, sending every request to every data center is not practical. Theoretically, a request for the asset would have to be sent to every data center in order to reduce the cache misses to the minimum possible. This is because the data centers are completely oblivious of each other. A request to the origin for one asset could be made as many times as there are data centers.Ī cache miss in any data center will result in a request being sent to the origin server even if the asset is cached in some other data center. In this scheme, a miss in any data center causes a request to the origin for an asset. ![]() The standard method for caching assets is to let each data center be a reverse proxy for the origin server. Today we’re introducing Smart Topology, which maximizes cache hit ratios by building on Argo’s internal infrastructure to identify the single best data center for making requests to the origin. By default, we use a generic topology for every customer that strikes a balance between cache hit ratios and latency that is suitable for most users. The number and location of the data centers used by Tiered Cache is controlled by a piece of configuration called the topology. With Tiered Cache active, a request in South Africa won’t go directly to an origin in North America, but, instead, look in a large, nearby data center to see if the data requested is cached there first. Tiered Cache is an Argo feature that reduces the number of data centers responsible for requesting assets from the origin. Argo observes network conditions and finds the optimal route across the Internet for origin server requests, avoiding congestion along the way. View all Front of House Spares Williams Refrigeration offers comprehensive support and spare parts available directly from Williams.A few years ago, we released Argo to help make the Internet faster and more efficient. View all Back Bar Front of House Bespoke display refrigeration tailored for any location. View all Coldrooms Back Bar One, two and three door undercounter display cabinets and open topped bottle wells. ![]() ![]() View all Bakery Coldrooms Flexible modular coldrooms available in an array of temperatures, sizes and options. View all Blast Chillers Bakery One and two door upright bakery cabinets, modular bakery cabinets and mobile retarder provers available in an array of temperatures. View all Multidecks Blast Chillers Reach-in and roll-in blast chillers, blast freezers and blast chiller freezers in an array of capacities and sizes. Heated multidecks offer the ideal hot holding solution. View all Preparation Multidecks Chilled multidecks in a variety of sizes, options and coloured finishes. View all Counters Preparation Two, three, four and five door refrigerated prep counters, mobile prep wells and table top Thermowells available in an array of sizes and options. View all Cabinets Counters One, two and three door refrigerated counters, slimline counters and specialist counters available in an array of temperatures, sizes and options. Close Cabinets One and two door upright, under counter and modular refrigerated cabinets in an array of temperatures and sizes.
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