# Stellar-core(package)
###### tags: `BlockChain`
將SDF(stellar development foundation)穩定存儲庫添加到系統
### 下載並安裝公共簽名密鑰

wget -qO - https://apt.stellar.org/SDF.asc | sudo apt-key add -

### 將存儲庫定義保存到/etc/apt/sources.list.d/SDF.list

echo "deb https://apt.stellar.org/public stable/" | sudo tee -a /etc/apt/sources.list.d/SDF.list

安裝stellar-quickstart

sudo apt-get update && sudo apt-get install stellar-quickstart
stellar-core-cmd info(看stelalr-core指令)

初始化stellar-core資料庫

sudo -u stellar stellar-core --conf /etc/stellar/stellar-core.cfg new-db

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## 個人化stellar
### 安裝stellar-core && stellar-horizon

apt-get update && apt-get install stellar-core
apt-get update && apt-get install stellar-horizon

啟動指令

systemctl start stellar-core
systemctl start stellar-horizon

### 刪除logrotate，由於目前stellar管理日誌方式是這樣(不太了解)

rm /etc/logrotate.d/stellar-core

查詢stellar數據庫並檢查分類帳標題中是否存在空白的簡單腳本。

stellar-core-gap-detect

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### 安裝數據庫

apt-get install stellar-core-postgres

預設為連接到testnet，若要連接到publicnet需先重置資料庫

sudo -u stellar stellar-core --conf /etc/stellar/stellar-core.cfg new-db

### 設定為full validator

stellar-core gen-seed
nano ~/etc/stellar/stellar-core.cfg
加入NODE_SEED="剛剛產生的seed"
加入NODE_IS_VALIDATOR=true

### 停止核心實例(只要有初始化檔案就要先停止stellar-core或是直接重新啟動)

systemctl stop stellar-core
### 使用Nginx發布的本地歷史檔案

nano /etc/stellar/stellar-core.cfg
[HISTORY.local]
get="cp /mnt/xvdf/stellar-core-archive/node_001/{0} {1}"
put="cp {0} /mnt/xvdf/stellar-core-archive/node_001/{1}"
mkdir="mkdir -p /mnt/xvdf/stellar-core-archive/node_001/{0}"

### 運行new-hist創建本地存檔

sudo -u stellar stellar-core --conf /etc/stellar/stellar-core.cfg new-hist local
若出現/mnt/xvdf permission denied
chmod 777 ~/mnt

查看本地存檔結構

tree -a /mnt/xvdf/stellar-core-archive/

啟動核心實例

systemctl start stellar-core
或Amazon S3支持的歷史檔案

nano /etc/stellar/stellar-core.cfg
[HISTORY.s3]
get='curl -sf http://history.example.com/{0} -o {1}' # Cached HTTP endpoint
put='aws s3 cp --region us-east-1 {0} s3://bucket.name/{1}' # Direct S3 access

運行new-hist創建s3存檔

sudo -u stellar stellar-core --conf /etc/stellar/stellar-core.cfg new-hist s3

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### 查看完整的歷史檔

stellar-archivist scan file:///mnt/xvdf/stellar-core-archive/node_001

### 可以發現有些資料遺失，連結到testnet去修復檔案

stellar-archivist repair http://history.stellar.org/prd/core-testnet/core_testnet_001/ file:///mnt/xvdf/stellar-core-archive/node_001/
確認修復
stellar-archivist scan file:///mnt/xvdf/stellar-core-archive/node_001
在這就要重新啟動
systemctl stellar-core start