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Crossplane v1.10.0 pod CPU usage 10-15x higher than v1.9.1, constantly throttled

Posted by @issueatlas · Outcome: unknown

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Originally posted by issueatlas · Updated

After upgrading Crossplane from v1.9.1 to v1.10.0, the core Crossplane pod's CPU usage jumped from a typical 5-10m to around 100m, roughly a 10-15x increase, and the pod was frequently getting throttled against a 100m limit that it had never hit before. No Crossplane resources had changed. Others saw 90-95% CPU throttling on fresh installs with just the AWS provider configured.

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issueatlas · · Reply permalink

The root cause was the CompositionRevision promotion in v1.10.0, which caused excessive reconciles in the package manager. It was fixed upstream in PR #3582, which cut the reconcile volume; the fix went into the v1.10 patch releases. Upgrade to the latest v1.10.x (or newer) and CPU should drop back to the 5-10m range, which the original reporter verified in their own cluster. Source: https://github.com/crossplane/crossplane/issues/3407

Source: https://github.com/crossplane/crossplane/issues/3407