Re: [I] perf: Initial configuration takes too long [apisix-ingress-controller]

["Baoyuantop (via GitHub)" <gi...@apache.org>]

Baoyuantop commented on issue #2726:
URL: https://github.com/apache/apisix-ingress-controller/issues/2726#issuecomment-3975980280

   Hi @martin-schulze-e2m, the 5-minute delay you're observing is caused by a hardcoded readiness check timeout. When the ingress controller starts, it enters a `WaitReady` state to ensure all Kubernetes resources (like ApisixRoutes, Ingresses, etc.) have been processed at least once before it performs the first full configuration sync to APISIX. This is a safety mechanism to prevent pushing incomplete configurations.
   
   This waiting period has a timeout of exactly 5 minutes, which is defined in `internal/provider/apisix/provider.go`:
   
   ```go
   func (d *apisixProvider) Start(ctx context.Context) error {
   	d.log.Info("starting provider, waiting for readiness")
   	d.readier.WaitReady(ctx, 5*time.Minute) // This line causes the 5-minute block
   	d.log.Info("Ready detected, starting sync loop")
       // ...
   }
   ```
   
   In your case, it seems that at least one of the watched resources is not being marked as "ready" by its reconciler within this 5-minute window, causing the WaitReady function to time out. After the timeout, the controller proceeds with the sync, which is why you see the PUT /sync log entry exactly 5 minutes after startup.
   
   While simply changing the timeout might seem like a solution, the core issue is understanding why the initial reconciliation is taking so long for a small number of resources. To move forward, we need to identify which resource is causing the delay.
   
   Could you please help by providing more detailed debug logs? 
   


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