KubeCon + CloudNativeCon China 2025

Service Mesh is thriving, with new versions always incorporating exciting features and significant CVE fixes that bring considerable benefits to users. However, the disruption of service traffic caused by Service Mesh upgrades or restarts, leading to system instability, remains a major obstacle to the usage of Service Mesh in production. In the most mature sidecar model, upgrading the data plane of the service mesh results in the redeployment of services; in some cases, this is nearly unacceptable, as certain business applications may face substantial cold start costs . Even for the rising sidecarless mode, it is still necessary to address the issue of interrupting existing user connections, which requires difficult choices. This topic will begin with real-world case studies, where technical experts from Huawei Cloud and Alibaba Cloud will share practical experiences on seamless service mesh upgrades in real production scenarios with the users.