[Q/A][new feature request] Will Dubbo introduce the Backup Requests mechanism in the future to address the long-tail problem in service calls?

[leonGravel]

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Apache Dubbo Component

Java SDK (apache/dubbo)

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Will Dubbo introduce the Backup Requests mechanism in the future to address the long-tail problem in service calls?
Or how can I implement Backup Requests in Dubbo? Do you have any good suggestions?

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[AlbumenJ]

What is the Backup Requests you want?