<@U0A71G31CDV> this might be problems of k8s and ...
# questions-and-troubleshooting
r
@Rocky this might be problems of k8s and operator. we upgrade starrocks operator version 1.9.8 to 1.11.4 , but there is some situation pod creating delay when after CR gernerated. nomaly after cr generated, pod use to be scheduled in 5-10s, but now more than 3minuate. cna you explatin this problems?
r
This issue of increased pod creation delay (from seconds to minutes) after upgrading the StarRocks Operator from 1.9.8 to 1.11.4 typically stems from changes in the operator's reconciliation logic or resource requirements in the newer versions. Here are the most likely causes and how to investigate them: 1. Operator Resource Limits (Most Common) Version 1.11.x is more feature-rich (supporting Warehouses, advanced scaling, and shared-data logic) and requires more resources than 1.9.x. * Problem: If your Operator pod is hitting its CPU or Memory limits, it will be throttled or experience frequent restarts (CrashLoopBackOff). A throttled operator will process the reconciliation queue much slower. * Action: Check the operator pod status:
kubectl get pods -n starrocks
. If it shows restarts or high CPU usage, increase the resources in the operator's Deployment (e.g., set memory to at least 512Mi or 1Gi and CPU to 500m). 2. Sequential Reconciliation & Readiness Gates In recent versions (1.10+), the operator's reconciliation logic has become more strictly sequential to ensure cluster stability. * Problem: The operator may now wait for the FE nodes to reach a strictly "Ready" state (as reported by the K8s API and internal health checks) before it even attempts to create the BE or CN pods. * Verification: Check the status of your CR (
kubectl get starrockscluster <name> -o yaml
). If the
FEStatus
is not "Running" or "Ready," the operator will delay creating the BE/CN components. * Check: Look for any Readiness Gates or Service issues that might be preventing the FE from being marked as Ready in the eyes of the operator. 3. Webhook Latency The upgrade to 1.11.4 likely updated the Validating/Mutating Webhooks. * Problem: If the operator's webhook service is slow to respond or has networking issues, the K8s API server will hang when you "generate the CR" or when the operator tries to "create the StatefulSet." While 3 minutes is long, it often matches the aggregate timeout of several failed webhook calls. * Action: Check the logs of the
starrocks-operator
pod for any errors related to "webhook" or "certificates." Ensure the
starrocks-webhook-service
is reachable from the API server. 4. Leader Election Contention If you are running multiple replicas of the operator (HA mode) or if the old leader lease wasn't cleared correctly: * Problem: The operator pod might be struggling to acquire the Leader Election Lease. Only the leader reconciles the CR. If it's "flapping" or stuck waiting for a lease, no pods will be created. * Action: Check the logs for:
attempting to acquire leader lease...
or
successfully acquired lease
. 5. Increased "Sync Period" or Rate Limiting The newer operator might be using a more conservative sync period or hitting K8s API rate limits if you have many resources in the namespace. * Action: Check the operator's startup arguments in its Deployment. Look for flags like
--resync-period
or
--max-concurrent-reconciles
. Increasing
--max-concurrent-reconciles
(if available) can help speed up processing. Recommended Troubleshooting Steps: 1. Check Operator Logs: This is the most critical step.
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bash
    kubectl logs -f -n starrocks <operator-pod-name>
Look for lines containing
Reconcile
and see if there are errors or if it's stuck on a specific component (e.g., "waiting for FE to be ready"). 2. Describe the CR:
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bash
    kubectl describe starrockscluster <your-cluster-name> -n <namespace>
Check the Events section at the bottom. It will tell you exactly what the operator is doing (or failing to do) right after you apply the CR. 3. Check K8s Events:
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bash
    kubectl get events -n <namespace> --sort-by='.lastTimestamp'
Look for any "FailedCreate" or "Warning" events that occurred during those 3 minutes. References