docs: Add Base Node Troubleshooting Guide for Operators

apps/base-docs/docs/troubleshooting/node-operator-troubleshooting.md

@@ -0,0 +1,122 @@
+---
+title: Troubleshooting Guide for Node Operators  
+sidebar_label: Node Troubleshooting  
+description: A detailed guide for diagnosing and resolving common issues for Base node operators 
+---
+
+# Troubleshooting Guide for Base Node Operators
+
+## Introduction
+
+This guide is designed to help Base node operators diagnose and resolve common issues encountered during node operation. It provides typical problem scenarios along with step-by-step instructions for addressing them.
+
+## Common Issues and Solutions
+
+### 1. Synchronization Issues
+
+#### Symptoms
+- The node lags behind the current block
+- Slow synchronization
+- Synchronization stops
+
+#### Solutions
+1. Check your internet connection.
+2. Ensure you have sufficient disk space.
+3. Verify system requirements:
+   - Minimum 16 GB RAM
+   - 8-core CPU
+   - SSD with enough free space.
+4. Restart the node with the flag `--syncmode "full"`.
+
+### 2. Performance Issues
+
+#### Symptoms
+- High CPU usage
+- Slow transaction processing
+- High memory consumption
+
+#### Solutions
+1. Monitor resources:
+   ```bash
+   htop  # View CPU and memory usage
+   df -h # Check disk space
+   ```
+2. Optimize configuration:
+   - Increase the cache size in the configuration
+   - Adjust Garbage Collection (GC) settings
+3. Check and upgrade hardware if necessary.
+
+### 3. Network Issues
+
+#### Symptoms
+- Difficulty connecting to peers
+- Frequent disconnections
+- P2P errors
+
+#### Solutions
+1. Check firewall settings:
+   ```bash
+   sudo ufw status
+   ```
+2. Ensure required ports are open:
+   - Port 30303 (TCP/UDP) for P2P
+   - Port 8545 for RPC (if used)
+3. Check peer connection:
+   ```javascript
+   admin.peers.length // Should be greater than 0
+   ```
+
+### 4. Consensus Issues
+
+#### Symptoms
+- Blockchain discrepancies
+- Block validation errors
+- Forks
+
+#### Solutions
+1. Verify the client version:
+   ```bash
+   geth version
+   ```
+2. Ensure you're using the latest stable version.
+3. Check logs for consensus errors.
+4. If needed, perform a full resynchronization.
+
+## Diagnostic Tools
+
+### Log Analysis
+```bash
+# View logs in real time
+tail -f /path/to/node/logs/geth.log
+
+# Search for errors in logs
+grep "ERROR" /path/to/node/logs/geth.log
+```
+
+### Metric Monitoring
+1. Set up Prometheus for metrics collection.
+2. Use Grafana for visualization
+3. Key metrics to monitor:
+   - Block synchronization
+   - Resource usage
+   - Network activity
+   - Transaction processing time
+
+## Preventive Maintenance
+
+1. Regularly check for client updates.
+2. Perform data backups.
+3. Monitor disk space usage.
+4. Clean up old data periodically.
+
+## Support Contacts
+
+Если вы столкнулись с проблемой, которую не удается решить самостоятельно:
+
+1. Visit the [Base Community Discord](https://discord.gg/buildonbase)
+2. Create an issue on [GitHub](https://github.com/base-org/node)
+3. Refer to the [Base Documentation](https://docs.base.org)
+
+## Conclusion
+
+This guide will be updated regularly based on feedback from node operators and new problem scenarios. If you have suggestions for improving this guide, please create an issue or pull request in the repository.

apps/base-docs/sidebars.js

@@ -27,6 +27,13 @@ module.exports = {
         },
       ],
     },
+    {
+      type: 'category',
+      label: 'Troubleshooting',
+      collapsible: false,
+      collapsed: false,
+      items: ['troubleshooting/node-operator-troubleshooting'],
+    },
     {
       type: 'category',
       label: 'Tools',