proxmox/docs/archive/configuration/FLUSH_MEMPOOLS_INSTRUCTIONS.md

Flush All Validator Mempools - Instructions

Date: $(date)
Status: ⚠️ ACTION REQUIRED ON PROXMOX HOST

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🎯 Objective

Flush mempools on all Besu validator nodes (and RPC nodes) to clear stuck transactions blocking Ethereum Mainnet configuration.

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📋 Validator Nodes

VMID	IP Address	Service Name
1000	192.168.11.100	besu-validator.service
1001	192.168.11.101	besu-validator.service
1002	192.168.11.102	besu-validator.service
1003	192.168.11.103	besu-validator.service
1004	192.168.11.104	besu-validator.service

📋 RPC Nodes (Also Need Flushing)

VMID	IP Address	Service Name
2500	192.168.11.250	besu-rpc.service
2501	192.168.11.251	besu-rpc.service
2502	192.168.11.252	besu-rpc.service

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🔧 Method 1: Automated Script (Recommended)

On the Proxmox host, run:

cd /home/intlc/projects/proxmox
chmod +x scripts/flush-all-mempools-proxmox.sh
./scripts/flush-all-mempools-proxmox.sh

This script will:

1. Restart all validator services (1000-1004)
2. Restart all sentry services (1500-1503)
3. Restart all RPC services (2500-2502)
4. Verify services are running
5. Report summary

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🔧 Method 2: Manual Restart (If Script Fails)

On the Proxmox host, run these commands:

Validators

for vmid in 1000 1001 1002 1003 1004; do
    echo "Restarting VMID $vmid..."
    pct exec $vmid -- systemctl restart besu-validator.service
    sleep 2
done

RPC Nodes

for vmid in 2500 2501 2502; do
    echo "Restarting VMID $vmid..."
    pct exec $vmid -- systemctl restart besu-rpc.service
    sleep 2
done

Verify Services

for vmid in 1000 1001 1002 1003 1004 2500 2501 2502; do
    if pct exec $vmid -- pgrep -f "besu" >/dev/null 2>&1; then
        echo "✓ VMID $vmid: Besu running"
    else
        echo "✗ VMID $vmid: Besu not running"
    fi
done

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🔧 Method 3: SSH to Each Node (If pct Not Available)

From a machine with SSH access, run:

# Validators
for ip in 192.168.11.100 192.168.11.101 192.168.11.102 192.168.11.103 192.168.11.104; do
    echo "Restarting $ip..."
    ssh root@$ip "systemctl restart besu-validator.service"
    sleep 2
done

# RPC Nodes
for ip in 192.168.11.250 192.168.11.251 192.168.11.252; do
    echo "Restarting $ip..."
    ssh root@$ip "systemctl restart besu-rpc.service"
    sleep 2
done

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⏱️ Wait for Services to Stabilize

After restarting, wait 15-30 seconds for services to come back online:

# Wait and verify RPC is online
for i in {1..15}; do
    if cast block-number --rpc-url http://192.168.11.250:8545 >/dev/null 2>&1; then
        echo "✅ RPC is online!"
        break
    else
        echo "  Attempt $i/15: Waiting..."
        sleep 2
    fi
done

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✅ Verify Mempools Are Flushed

After restarting, verify the mempool issue is resolved:

cd /home/intlc/projects/proxmox
./scripts/configure-ethereum-mainnet-final.sh

Expected Result: Transactions should succeed without "Replacement transaction underpriced" errors.

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📊 Current Status

• Issue: Stuck transaction in mempool with extremely high gas price
• Blocking: Ethereum Mainnet configuration
• Solution: Restart Besu services to flush mempools
• Status: ⏳ AWAITING MANUAL RESTART ON PROXMOX HOST

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🎯 Next Steps After Flushing

1. Wait for services to stabilize (15-30 seconds)
2. Verify RPC is online: cast block-number --rpc-url http://192.168.11.250:8545
3. Configure Ethereum Mainnet: ./scripts/configure-ethereum-mainnet-final.sh
4. Verify configuration: ./scripts/test-bridge-all-7-networks.sh weth9
5. Expected: 7/7 networks configured ✅

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📝 Scripts Created

1. scripts/flush-all-mempools-proxmox.sh - Automated script for Proxmox host
2. scripts/flush-validator-mempools.sh - Validator-specific script
3. scripts/configure-ethereum-mainnet-final.sh - Configuration script (ready to run after flush)

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Last Updated: $(date)
Action Required: Run flush script on Proxmox host, then configure Ethereum Mainnet