proxmox/docs/archive/completion/CCIP_MONITOR_FIX_COMPLETE.md

CCIP Monitor Fix Complete

Date: $(date)
Service: CCIP Monitor (VMID 3501)
Status: ✅ FIXED AND OPERATIONAL

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🔧 Fix Summary

Issue Identified

• Error: 'components' error in CCIP event monitoring
• Root Cause: web3.py 7.14.0 API incompatibility with contract event methods
• Location: monitor_ccip_events() function

Fix Applied

• Solution: Replaced contract-based event filtering with raw w3.eth.get_logs()
• Changes:
  1. Removed dependency on router_contract.events.MessageSent.get_logs()
  2. Implemented direct w3.eth.get_logs() calls with event topic hashes
  3. Added proper transaction hash extraction handling
  4. Improved error handling for web3.py 7.x compatibility

Code Changes

Before (causing error):

router_contract = w3.eth.contract(address=..., abi=...)
events = router_contract.events.MessageSent.get_logs(...)

After (fixed):

message_sent_topic = Web3.keccak(text="MessageSent(...)")
logs = w3.eth.get_logs({
    "fromBlock": from_block,
    "toBlock": to_block,
    "address": CCIP_ROUTER_ADDRESS,
    "topics": [message_sent_topic.hex()]
})

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✅ Verification Results

Service Status

• Container: ✅ Running (VMID 3501)
• Systemd Service: ✅ Active and enabled
• Health Endpoint: ✅ Healthy
• RPC Connection: ✅ Connected (Block: 78661+)
• Metrics Server: ✅ Running on port 8001
• Health Server: ✅ Running on port 8000

Error Status

• Errors in Logs: 0 (verified)
• Service Health: Healthy
• Event Monitoring: Working without errors

Health Check Response

{
    "status": "healthy",
    "rpc_connected": true,
    "block_number": 78661,
    "ccip_router": "0x8078A09637e47Fa5Ed34F626046Ea2094a5CDE5e",
    "ccip_sender": "0x105F8A15b819948a89153505762444Ee9f324684"
}

---

📝 Technical Details

Event Monitoring Implementation

MessageSent Events:

• Event Signature: MessageSent(bytes32,uint64,address,bytes,(address,uint256)[],address,bytes)
• Topic Hash: Calculated using Web3.keccak()
• Monitoring: Checks last 100 blocks (or since last processed)

MessageExecuted Events:

• Event Signature: MessageExecuted(bytes32,uint64,address,bytes)
• Topic Hash: Calculated using Web3.keccak()
• Monitoring: Checks last 100 blocks (or since last processed)

Transaction Hash Handling

• Supports both bytes and HexBytes types
• Safe extraction with fallback to string conversion
• Proper error handling for edge cases

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🚀 Deployment

Files Updated

1. Local: scripts/ccip_monitor.py - Fixed event monitoring
2. Container: /opt/ccip-monitor/ccip_monitor.py - Deployed fixed version

Deployment Steps

1. Fixed code in local file
2. Copied to container via SSH
3. Restarted systemd service
4. Verified no errors in logs

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📊 Monitoring Capabilities

Events Monitored

• ✅ MessageSent: Cross-chain message initiation events
• ✅ MessageExecuted: Cross-chain message execution events

Metrics Collected

• ccip_messages_total - Total CCIP messages by event type
• ccip_message_fees - CCIP message fees (histogram)
• ccip_message_latency - Message latency in seconds
• ccip_last_block - Last processed block number
• ccip_service_status - Service health status
• ccip_rpc_connected - RPC connection status

Endpoints

• Health Check: http://localhost:8000/health
• Prometheus Metrics: http://localhost:8001/metrics

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✅ Completion Status

• ✅ Error fixed
• ✅ Code deployed
• ✅ Service restarted
• ✅ Errors verified as 0
• ✅ Health check passing
• ✅ Metrics accessible
• ✅ Event monitoring operational

---

🔍 Verification Commands

Check Service Status

ssh root@192.168.11.10 'pct exec 3501 -- systemctl status ccip-monitor'

Check Logs

ssh root@192.168.11.10 'pct exec 3501 -- journalctl -u ccip-monitor -f'

Check Health

ssh root@192.168.11.10 'pct exec 3501 -- curl -s http://localhost:8000/health'

Check Metrics

ssh root@192.168.11.10 'pct exec 3501 -- curl -s http://localhost:8001/metrics'

Verify No Errors

ssh root@192.168.11.10 'pct exec 3501 -- journalctl -u ccip-monitor --since "5 minutes ago" | grep -i error | wc -l'
# Should return: 0

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📋 Summary

Status: ✅ FIX COMPLETE

The CCIP Monitor service is now:

• ✅ Running without errors
• ✅ Monitoring CCIP events correctly
• ✅ Providing health checks
• ✅ Exposing Prometheus metrics
• ✅ Fully operational

Fix Applied: $(date)
Service Status: ✅ OPERATIONAL

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Last Updated: $(date)