Cache Security Solutions for Concurrent Builds
When multiple PRs trigger a build at the same time, traditional caching mechanisms can lead to competitive conditions. the CNB provides the following safeguards:
- Automatic Version Isolation: Each build task gets a separate namespace, which can be accessed via the
volumes: <dir>:copy-on-writeA hash identifier is automatically appended to the declaration - three-level cache policy::
- Global read-only base cache (e.g. public dependencies)
- Branch-level writable cache (feature inter-branch isolation)
- Build-level temporary cache (single-build-specific)
- Conflict detection mechanisms: Automatically retries when a parallel write is detected and outputs a warning on the console:
[CNB Warning] 检测到缓存竞争，已自动启用隔离模式
Best practice: an e-commerce platform maintains stable execution of 200+ build tasks per minute during the 618 promotion.
This answer comes from the articleCNB (Cloud Native Build): A Declarative Cloud Native Build and Development PlatformThe
May not be reproduced without permission:AI productivity tools " How to prevent build cache conflicts in high concurrency scenarios?
English 
简体中文 
日本語 
Deutsch 
Português do Brasil