Upgrade 가이드

Stable 네트워크 버전 변경에 따른 노드 업그레이드 절차, 유형 및 롤백 전략.

이 가이드는 upgrade 절차 및 rollback을 포함한 Stable 노드의 upgrade 과정을 다룹니다.

전체 버전 히스토리 및 upgrade 세부 정보는 Version History를 참조하세요.

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Upgrade 방법

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Soft Upgrades (Non-Breaking)

• 언제든지 수행 가능
• 이전 버전과 호환 가능

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Hard Upgrades (Breaking)

• 특정 높이에서 upgrade 필요
• 이전 버전과 호환 불가능

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Emergency Upgrades

• 중요한 보안 수정
• 즉각적인 조치 필요
• 체인 중단이 필요할 수 있음

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표준 Upgrade 절차

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1단계: 준비

# Check current version
stabled version --long

# Backup critical data
cp -r ~/.stabled/config ~/stable-backup-$(date +%Y%m%d)/

# For validators only: Backup validator state
cp ~/.stabled/data/priv_validator_state.json ~/stable-backup-$(date +%Y%m%d)/

# Check disk space (need 2x current data size)
df -h ~/.stabled

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2단계: 새 바이너리 다운로드

# For v1.2.0-rc1 upgrade (January 22, 2026)
# Choose your architecture:

# Linux AMD64
BINARY_URL="https://stable-data-dist.s3.us-east-1.amazonaws.com/testnet/binary/stabled-1.2.0-rc1-linux-amd64-testnet.tar.gz"

# OR Linux ARM64
BINARY_URL="https://stable-data-dist.s3.us-east-1.amazonaws.com/testnet/binary/stabled-1.2.0-rc1-linux-arm64-testnet.tar.gz"

# Download new binary
wget $BINARY_URL

# Extract to temporary location
tar -xvzf stabled-1.2.0-rc1-linux-*.tar.gz -C /tmp/

# Verify new version
/tmp/stabled version --long

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3단계: Upgrade 수행

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Soft Upgrades의 경우

# Stop node
sudo systemctl stop ${SERVICE_NAME}

# Backup current binary
sudo mv /usr/bin/stabled /usr/bin/stabled.backup

# Install new binary
sudo mv /tmp/stabled /usr/bin/stabled
sudo chmod +x /usr/bin/stabled

# Verify installation
stabled version --long

# Start node
sudo systemctl start ${SERVICE_NAME}

# Monitor logs
sudo journalctl -u ${SERVICE_NAME} -f

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Hard Upgrades

# Monitor for upgrade height
while true; do
    HEIGHT=$(curl -s localhost:26657/status | jq -r '.result.sync_info.latest_block_height')
    echo "Current height: $HEIGHT"
    if [ $HEIGHT -ge $UPGRADE_HEIGHT ]; then
        break
    fi
    sleep 10
done

# Node will halt automatically at upgrade height
# Wait for halt message in logs
sudo journalctl -u ${SERVICE_NAME} -f | grep "UPGRADE"

# Once halted, perform upgrade
sudo systemctl stop ${SERVICE_NAME}
sudo mv /usr/bin/stabled /usr/bin/stabled.backup
sudo mv /tmp/stabled /usr/bin/stabled

# Start with new binary
sudo systemctl start ${SERVICE_NAME}

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4단계: Upgrade 후 검증

# Check node status
curl -s localhost:26657/status | jq '.result'

# Verify version
curl -s localhost:26657/status | jq '.result.node_info.version'

# Check peers
curl -s localhost:26657/net_info | jq '.result.n_peers'

# Monitor sync status
watch -n 2 'curl -s localhost:26657/status | jq ".result.sync_info"'

# Check for errors
sudo journalctl -u ${SERVICE_NAME} --since "10 minutes ago" | grep -i error

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Cosmovisor 설정 (자동 Upgrades)

Cosmovisor는 조율된 upgrade의 upgrade 프로세스를 자동화합니다.

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설치

# Install cosmovisor
go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@latest

# Or download binary
wget https://github.com/cosmos/cosmos-sdk/releases/download/cosmovisor%2Fv1.7.0/cosmovisor-v1.7.0-linux-amd64.tar.gz
tar -xzf cosmovisor-v1.7.0-linux-amd64.tar.gz
sudo mv cosmovisor /usr/bin/

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구성

# Set environment variables
cat >> ~/.bashrc <<EOF
export DAEMON_NAME=stabled
export DAEMON_HOME=$HOME/.stabled
export DAEMON_RESTART_AFTER_UPGRADE=true
export DAEMON_ALLOW_DOWNLOAD_BINARIES=true
export UNSAFE_SKIP_BACKUP=false
EOF

source ~/.bashrc

# Create directory structure
mkdir -p $DAEMON_HOME/cosmovisor/genesis/bin
mkdir -p $DAEMON_HOME/cosmovisor/upgrades

# Copy current binary to genesis
cp /usr/bin/stabled $DAEMON_HOME/cosmovisor/genesis/bin/

# Create systemd service
sudo tee /etc/systemd/system/cosmovisor.service > /dev/null <<EOF
[Unit]
Description=Cosmovisor daemon
After=network-online.target

[Service]
Environment="DAEMON_NAME=stabled"
Environment="DAEMON_HOME=$HOME/.stabled"
Environment="DAEMON_RESTART_AFTER_UPGRADE=true"
Environment="DAEMON_ALLOW_DOWNLOAD_BINARIES=true"
User=$USER
ExecStart=/usr/bin/cosmovisor run start --chain-id stabletestnet_2201-1
Restart=always
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

# Enable and start
sudo systemctl daemon-reload
sudo systemctl enable cosmovisor
sudo systemctl start cosmovisor

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Cosmovisor로 Upgrade

# For each upgrade, create directory (use the upgrade name from the proposal)
mkdir -p $DAEMON_HOME/cosmovisor/upgrades/v1.2.0-rc1/bin

# Place new binary
cp /path/to/new/stabled $DAEMON_HOME/cosmovisor/upgrades/v1.2.0-rc1/bin/

# Cosmovisor will automatically switch at upgrade height

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Rollback

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데이터 Rollback

# Stop node
sudo systemctl stop ${SERVICE_NAME}

# Backup current state (in case needed)
cp -r ~/.stabled/data ~/.stabled/data.failed

# Restore from snapshot before upgrade
cd ~/.stabled
rm -rf data/
tar -I lz4 -xf ~/snapshots/pre-upgrade-snapshot.tar.lz4

# Restore previous binary
sudo mv /usr/bin/stabled.backup /usr/bin/stabled

# Start node
sudo systemctl start ${SERVICE_NAME}

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긴급 상황 발생 시

# If chain halts unexpectedly
# 1. Check Discord for instructions
# 2. Export state at last known good height
stabled export --height <last_good_height> > export.json

# 3. Wait for coordinated restart instructions

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다음 단계

• Version History - 전체 upgrade 히스토리 및 릴리스 노트
• upgrade 후 노드 모니터링
• 일반적인 문제는 Troubleshooting 확인