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This article mainly explains "what is the role of zuul in Java". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what is the role of zuul in Java"?

The modified filter is dynamically loaded into Zuul Server to filter the request for use

Zuul can load a dynamic filtering mechanism to achieve the following functions:

Verification and security: identify verification requirements for all types of resources and reject requests that do not meet the requirements.

Review and monitoring: track meaningful data and statistical results at the edge, so as to bring us accurate production status conclusions.

Dynamic routing: dynamically routes requests to different back-end clusters as needed.

Stress testing: gradually increase the load flow to the cluster to calculate the performance level.

Load distribution: allocate the corresponding capacity for each load type and discard requests that exceed the limit.

Static response processing: establish a partial response directly at the edge to prevent it from flowing into the internal cluster.

Multi-area resiliency: request routing across AWS areas is designed to diversify the use of ELB and ensure that the edge location is as close as possible to the user.

In addition, Netflix also uses the features of Zuul to achieve accurate routing and stress testing through the Canary version.

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