hello-dd-code
34 lines
1.2 KiB
Markdown
34 lines
1.2 KiB
Markdown
# 数据备份策略与恢复演练
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对应 issue：`#12 [P1][T9] 备份策略与恢复演练`
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## 1. 备份策略
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- 备份脚本：`scripts/ops/backup_mysql.sh`
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- 备份格式：`<db>_YYYYmmdd_HHMMSS.sql.gz`
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- 默认保留：`KEEP_DAYS=7`
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- 支持告警：`OPS_ALERT_WEBHOOK`
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推荐 cron（每天 02:00）：
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```bash
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0 2 * * * MYSQL_HOST=127.0.0.1 MYSQL_PORT=3306 MYSQL_USER=root MYSQL_PASSWORD=*** MYSQL_DATABASE=wx_service BACKUP_DIR=/var/backups/wx_service KEEP_DAYS=7 OPS_ALERT_WEBHOOK="https://example.com/webhook" /path/to/wx_service/scripts/ops/backup_mysql.sh >> /var/log/wx_service-backup.log 2>&1
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```
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## 2. 恢复流程
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- 恢复脚本：`scripts/ops/restore_mysql.sh`
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- 为避免误操作，必须显式设置：`CONFIRM_RESTORE=1`
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示例：
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```bash
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CONFIRM_RESTORE=1 MYSQL_HOST=127.0.0.1 MYSQL_PORT=3306 MYSQL_USER=root MYSQL_PASSWORD=*** MYSQL_DATABASE=wx_service /path/to/wx_service/scripts/ops/restore_mysql.sh /var/backups/wx_service/wx_service_20260228_020000.sql.gz
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```
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## 3. 演练建议
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1. 先在演练库执行恢复，不要直接对生产库恢复。
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2. 恢复后执行关键表行数与抽样数据校验。
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3. 记录耗时、失败点、回滚步骤，形成固定 runbook。
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