openkruise / kruise

Automated management of large-scale applications on Kubernetes (incubating project under CNCF)
https://openkruise.io
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[feature request] CloneSet支持热备Pod管理 #1762

Open yenniechen opened 2 months ago

yenniechen commented 2 months ago

What would you like to be added: CloneSet支持热备Pod管理

Why is this needed: 对于Serverless弹性伸缩来说,冷启动创建Pod耗时长,不能及时响应流量的上升,因而热备Pod管理是常规应对手段。如果采用管理两个独立Workload(正常对外服务的Pod Workload和热备Pod Workload),在实际生产实践中,带来在Pod创建、更新、删除上诸多异步延时问题。如果Workload本身具备热备Pod管理能力,会让事情变得更简单、更稳定可靠。 为此,希望CloneSet具备热备Pod管理能力。

yenniechen commented 2 months ago

/assign @yenniechen