Troubleshooting Compute, Storage, and Network Issues in Huawei Cloud

Details: Category: Cloud Platforms and Services; By Mindful Chase; 05.Apr; Hits: 3

Huawei Cloud is an emerging global cloud platform offering a wide range of services across compute, storage, networking, AI, and big data. As deployments scale, enterprises often encounter sophisticated issues such as VPC misconfigurations, ECS (Elastic Cloud Server) failures, OBS (Object Storage Service) access delays, and IAM policy misalignments. Effective troubleshooting of these challenges is critical to ensure cloud performance, security, and operational resilience in complex multi-cloud or hybrid environments.

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Background: How Huawei Cloud Services Operate

Core Components

Huawei Cloud includes services like ECS for compute, OBS for storage, VPC for networking, IAM for access management, and advanced PaaS and AI services. It provides APIs, SDKs, and a console for management and automation.

Common Enterprise-Level Challenges

VPC subnet or security group misconfigurations
Elastic Cloud Server (ECS) deployment or startup failures
OBS performance bottlenecks or access permission errors
IAM role or policy misalignment causing API call failures

Architectural Implications of Failures

Network Accessibility Failures

Misconfigured VPCs or security groups can isolate resources, block service-to-service communication, and disrupt application availability.

Data Access and Compliance Risks

Incorrect OBS bucket policies or IAM misconfigurations may expose sensitive data or prevent critical application functionality, impacting compliance and SLAs.

Diagnosing Huawei Cloud Failures

Step 1: Review VPC and Security Group Settings

Check routing tables, ACLs, and security groups to ensure proper traffic flow between services.

Console: VPC -> Security Groups -> View Rules
VPC -> Subnets -> Routing Table

Step 2: Inspect ECS Instance States and Logs

Review ECS instance lifecycle states and system logs for deployment or startup failures.

Console: ECS -> Instance Details -> System Log
Check instance event history

Step 3: Validate OBS Access Permissions

Audit bucket policies, CORS rules, and IAM permissions associated with OBS access requests.

Console: OBS -> Bucket Permissions
IAM -> Policies -> Permission Sets

Step 4: Monitor API Gateway and Service Health

Use Huawei Cloud's Cloud Eye or APM tools to monitor service health metrics and API request/response trends.

Cloud Eye -> Metrics Monitoring
APM -> Trace Requests

Common Pitfalls and Misconfigurations

Incorrect VPC Peering Configurations

Establishing VPC peering without properly updating route tables or security groups results in inter-VPC communication failures.

Unoptimized OBS Storage Classes

Improper selection of OBS storage classes (e.g., using Standard instead of Warm or Archive) can inflate storage costs and retrieval latencies.

Step-by-Step Fixes

1. Correct VPC Routing and Security Rules

Update routing tables to reflect VPC peering links and adjust security group ingress/egress rules to permit required traffic.

2. Diagnose and Restart Failed ECS Instances

Analyze system logs for kernel panics, driver errors, or misconfigurations; rebuild instances if needed using updated images.

3. Adjust OBS Permissions

Set least-privilege IAM roles and fine-tune OBS bucket policies to restrict access by IP range, service, or account.

4. Optimize Storage Class Selection

Choose appropriate OBS storage classes based on data access frequency and retention policies to balance cost and performance.

5. Implement Multi-Region Failover

Configure OBS Cross-Region Replication (CRR) and deploy ECS instances across multiple AZs for higher availability.

Best Practices for Long-Term Stability

Design VPC architectures with clear subnet, ACL, and routing segmentation
Use IAM policies and Service-Control Policies (SCPs) to enforce least privilege
Tag resources systematically for easier governance and cost tracking
Enable real-time service monitoring and proactive alerting with Cloud Eye
Regularly audit security configurations using Huawei's Compliance Center

Conclusion

Efficiently troubleshooting Huawei Cloud requires a deep understanding of networking, storage, compute, and identity configurations. By proactively validating VPC designs, tightening IAM permissions, monitoring service health, and optimizing storage decisions, teams can maximize reliability, cost efficiency, and security across large-scale Huawei Cloud environments.

FAQs

1. Why are my ECS instances stuck in 'Starting' state?

Common causes include invalid startup scripts, incompatible OS images, or insufficient VPC network availability. Check instance system logs and events for error clues.

2. How can I troubleshoot OBS bucket access denied errors?

Review IAM policies, bucket ACLs, and ensure that requesting users or services have the correct permissions and CORS settings if applicable.

3. What causes VPC peering connections to fail?

Missing route table updates or incorrect security group rules after establishing VPC peering usually block communication. Validate both VPC configurations.

4. How do I monitor API usage and failures in Huawei Cloud?

Enable API call logging via CTS (Cloud Trace Service) and set up API Gateway monitoring for request trends, error rates, and latency metrics.

5. Is it necessary to use multiple AZs for ECS deployments?

Yes, deploying across multiple Availability Zones ensures higher availability and fault tolerance in case of zone-level failures or maintenance events.

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