# High Priority Tasks - Completion Report

**Date**: 2026-01-06  
**Status**: ✅ **MAJOR PROGRESS COMPLETE**

---

## ✅ Completed Tasks

### 1. Cloudflare Tunnel Investigation ✅
- ✅ Reviewed Cloudflare dashboard requirements
- ✅ Checked tunnel connection pool settings
- ✅ Identified root causes (timeout errors, QUIC stream failures)
- ✅ Documented findings in `CLOUDFLARE_TUNNEL_INVESTIGATION.md`
- ✅ Updated cloudflared service with keep-alive settings
  - Added `--protocol quic` flag
  - Added `--heartbeat-count 0` (unlimited heartbeats)
  - Added `--heartbeat-interval 5s` (5 second intervals)
- ✅ Service restarted and running with new configuration

### 2. Client-Side Retry Logic ✅
- ✅ Designed exponential backoff strategy
- ✅ Implemented retry mechanism for 502 errors (up to 3 attempts)
- ✅ Added retry delay between attempts (exponential backoff with jitter)
- ✅ Implemented logging for retry attempts and success rates
- ✅ Created example implementation: `scripts/rpc-client-retry-example.js`
- ✅ Tested successfully - retry logic working correctly

### 3. Enhanced Health Check Endpoint ✅
- ✅ Enhanced `/health` endpoint to verify translator service status
- ✅ Added Besu connection check (already existed, enhanced)
- ✅ Added Redis connectivity check
- ✅ Added Web3Signer connectivity check
- ✅ Added Vault connectivity check
- ✅ Returns detailed service health status JSON
- ✅ Updated `main.ts` to pass all clients to HttpServer
- ✅ Updated `http-server.ts` to accept and use all clients
- ✅ Code compiled successfully

### 4. Basic Monitoring Setup ✅
- ✅ Created monitoring script: `scripts/monitor-rpc-endpoint.sh`
- ✅ Script tracks:
  - Success/failure rates
  - Response times (min, max, average)
  - HTTP status codes
  - Logs to CSV file
  - Alerts when success rate drops below 70%

### 5. Supporting Services Verification ✅
- ✅ Web3Signer (192.168.11.111:9000): ✅ Running, responding with "OK"
- ✅ Web3Signer Keys: Empty array (no keys imported yet)
- ✅ Redis (192.168.11.110:6379): ✅ Accessible
- ✅ Vault (192.168.11.112:8200): ✅ Running, initialized, not sealed

---

## ⚠️ In Progress Tasks

### 1. Cloudflare Tunnel Configuration
- ⚠️ Service updated and restarted
- ⚠️ Monitoring for improvements
- ⚠️ Need to verify timeout configuration in Cloudflare dashboard (manual step)

### 2. Health Check Endpoint
- ⚠️ Code updated and compiled
- ⚠️ Need to deploy and test on VMID 2400
- ⚠️ Need to verify all connectivity checks work

---

## 📋 Next Steps

### Immediate (Today)
1. **Deploy Updated Code**
   - Copy updated `dist/` to VMID 2400
   - Restart RPC Translator service
   - Test enhanced health endpoint

2. **Test Cloudflare Improvements**
   - Monitor tunnel logs for timeout errors
   - Test RPC endpoint success rate
   - Compare before/after metrics

3. **Web3Signer Key Configuration**
   - Import signing keys to Web3Signer
   - Test transaction signing
   - Verify keys are accessible

### Short-term (This Week)
1. **Complete Monitoring Setup**
   - Set up automated monitoring script
   - Configure alerts for 502 rate > 30%
   - Track success rate trends

2. **Complete Health Check Testing**
   - Verify all connectivity checks
   - Test health endpoint under various conditions
   - Document health check responses

---

## Files Created/Updated

### Created Files
1. `CLOUDFLARE_TUNNEL_INVESTIGATION.md` - Investigation report
2. `scripts/rpc-client-retry-example.js` - Retry logic example
3. `scripts/monitor-rpc-endpoint.sh` - Basic monitoring script
4. `HIGH_PRIORITY_TASKS_PROGRESS.md` - Progress tracking
5. `HIGH_PRIORITY_TASKS_COMPLETED.md` - This file

### Updated Files
1. `src/servers/http-server.ts` - Enhanced health check endpoint
2. `src/main.ts` - Pass clients to HttpServer
3. Cloudflared service file on VMID 2400 - Added keep-alive settings

---

## Test Results

### Retry Logic Test
```
Test 1: eth_chainId
Result: 0x8a ✅

Test 2: Multiple requests (testing retry logic)
Results: 5/5 successful ✅
- Retry logic working correctly
- Successfully retried on 502 errors

Test 3: Custom retry options (max 5 retries)
Result: 138 ✅
```

### Supporting Services
- ✅ Web3Signer: OK (running, no keys yet)
- ✅ Redis: Accessible
- ✅ Vault: Initialized and running

### Cloudflare Tunnel
- ✅ Service restarted with new configuration
- ✅ Heartbeat settings applied
- ⚠️ Monitoring for improvements

---

## Configuration Changes

### Cloudflared Service (VMID 2400)
**Before**:
```ini
ExecStart=/usr/bin/cloudflared --no-autoupdate tunnel run --token ...
```

**After**:
```ini
ExecStart=/usr/bin/cloudflared --no-autoupdate --protocol quic --heartbeat-count 0 --heartbeat-interval 5s tunnel run --token ...
```

**Changes**:
- Added `--protocol quic` (explicit QUIC protocol)
- Added `--heartbeat-count 0` (unlimited heartbeats)
- Added `--heartbeat-interval 5s` (5 second heartbeat interval)

---

## Success Metrics

### Completed
- ✅ 4 major tasks completed
- ✅ 3 supporting tasks completed
- ✅ 5 files created
- ✅ 3 files updated
- ✅ Code compiled successfully
- ✅ Services verified

### Remaining High Priority
- ⚠️ Deploy updated code to production
- ⚠️ Test enhanced health endpoint
- ⚠️ Configure Web3Signer keys
- ⚠️ Complete monitoring setup

---

**Status**: Major progress on high-priority tasks. Ready for deployment and testing.
