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qiujiandong1 bfc6e41869 CCE UMN update 20241130 version 
Reviewed-by: Eotvos, Oliver <oliver.eotvos@t-systems.com>
Co-authored-by: qiujiandong1 <qiujiandong1@huawei.com>
Co-committed-by: qiujiandong1 <qiujiandong1@huawei.com>
2025-02-24 12:45:02 +00:00

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Avoiding Occasional DNS Resolution Timeout Caused by IPVS Defects

Description

When kube-proxy uses IPVS load balancing, you may encounter DNS resolution timeout occasionally during CoreDNS scale-in or restart.

This problem is caused by a Linux kernel defect. For details, see https://github.com/torvalds/linux/commit/35dfb013149f74c2be1ff9c78f14e6a3cd1539d1.

Solution

You can use NodeLocal DNSCache to minimize the impact of IPVS defects.

Parent topic: Client