Price spike meaning11/15/2023 ![]() Submit to an API over the course of an hour, day, week, or month. The Quota policy configures the number of request messages that a client app is allowed to Multiply your calculated number of full requests per interval by the number of Message Processors Processors (the default for Edge cloud), that number doubles to 2 requests every 2 seconds. Processor, a 30pm rate smooths traffic to 1 request every 2 seconds (60 / 30). With more than one Message Processor, especially those with a round-robinĬonfiguration, each handles its own Spike Arrest throttling independently. That means request counts are not synchronizedĪcross MPs. Smoothing never involves calculating fractions ofīy default, Spike Arrest is not distributed unless you enable. Note: In rate smoothing, the number of requests is always a A second request inside of 100ms will fail. ![]() ![]() Per-second rates get smoothed into full requests allowed in intervalsįor example, 10ps gets smoothed like this:ġ000 milliseconds (1 second) / 10ps = 100-millisecond intervals, or 1 request allowed every 100.Also, a 31st request within a minute will Second request inside of 2 seconds will fail. Per-minute rates get smoothed into full requests allowed in intervalsįor example, 30pm gets smoothed like this:Ħ0 seconds (1 minute) / 30pm = 2-second intervals, or 1 request allowed every 2 seconds.Of full requests allowed by dividing your settings into smaller intervals: What actually happens, then? To prevent spike-like behavior, Spike Arrest smooths the number Period could be considered a mini spike in some environments. If you think about it, 30 requests inside a 1-second Think you could send 30 requests in 1 second, as long as they came within a minute. Per-minute or per-second values you enter.įor example, say you enter a rate of 30pm (30 requests per minute). The runtime Spike Arrest behavior differs from what you might expect to see from the literal Your APIs and backend can handle a certainĪmount of traffic, and the Spike Arrest policy helps you smooth traffic to the general amounts Way to limit traffic to a specific number of requests. Think of Spike Arrest as a way to generally protect against traffic spikes rather than as a Protecting against performance lags and downtime. ![]() ThisĮlement throttles the number of requests processed by an API proxy and sent to a backend, The Spike Arrest policy protects against traffic surges with the element. You're viewing Apigee Edge documentation. ![]()
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