Issue
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After upgrading BlueOcean you see a major CPU increase in your controllers, leading to an unresponsive UI and slow job execution.
Environment
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CloudBees CI (CloudBees Core) on Modern Cloud Platforms - Managed controller
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CloudBees CI (CloudBees Core) on Modern Cloud Platforms - Operations Center
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CloudBees CI (CloudBees Core) on Traditional Platforms - Client controller
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CloudBees CI (CloudBees Core) on Traditional Platforms - Operations Center
Explanation
According to JENKINS-56773, a previous change on the plugin caused it to perform a series of API calls to the /computers endpoint that cause a CPU overhead and generate performance issues.
Resolution
The BlueOcean Executor Info Plugin should be disabled and uninstalled.
Tested Version
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Jenkins LTS 2.249.2
This article is part of our Knowledge Base and is provided for guidance-based purposes only. The solutions or workarounds described here are not officially supported by CloudBees and may not be applicable in all environments. Use at your own discretion, and test changes in a safe environment before applying them to production systems.