42 lines
1.6 KiB
Bash
Executable File
42 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# snapshot-state-db.sh — state.db 定时健康快照（2026-09-03）
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# 用 sqlite3 .backup（在线一致性快照，gateway 运行时安全），不是 cp
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# 保留最近 8 份；损坏恢复时用最近的快照（比 19:26 那份手工备份新得多）
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set -uo pipefail
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DB=/home/muc/.hermes/state.db
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SNAP_DIR=/home/muc/.hermes/backups/state-db-snap
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KEEP=8
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TS=$(date +%Y%m%d-%H%M)
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LOG=/tmp/state-db-snap.log
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mkdir -p "$SNAP_DIR"
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# 1. 在线一致性快照
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if ! sqlite3 "$DB" ".backup '$SNAP_DIR/state-$TS.db'" 2>>"$LOG"; then
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echo "[$(date '+%H:%M:%S')] ❌ state.db 快照失败" | tee -a "$LOG"
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exit 1
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fi
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# 2. 验证快照健康
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CHECK=$(sqlite3 "$SNAP_DIR/state-$TS.db" "PRAGMA integrity_check;" 2>&1 | head -1)
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if [ "$CHECK" != "ok" ]; then
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echo "[$(date '+%H:%M:%S')] ⚠️ 快照 integrity=$CHECK（删除坏快照）" | tee -a "$LOG"
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rm -f "$SNAP_DIR/state-$TS.db"
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exit 1
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fi
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# 2.5 快照切 WAL 模式（2026-09-06 模式15：.backup 产物默认 delete 头，直接拿去恢复会触发
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# gateway 启动 delete→WAL 转换风暴 → FTS5 撕裂；让快照生而 WAL，恢复链全程无转换）
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JM=$(sqlite3 "$SNAP_DIR/state-$TS.db" "PRAGMA journal_mode=WAL;" 2>&1)
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if [ "$JM" != "wal" ]; then
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echo "[$(date '+%H:%M:%S')] ⚠️ 快照切 WAL 失败 ($JM)，删除该快照" | tee -a "$LOG"
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rm -f "$SNAP_DIR/state-$TS.db"
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exit 1
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fi
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# 3. 清理旧快照（保留最近 KEEP 份）
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ls -1t "$SNAP_DIR"/state-*.db 2>/dev/null | tail -n +$((KEEP+1)) | xargs -r rm -f
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echo "[$(date '+%H:%M:%S')] ✅ 快照 state-$TS.db (integrity=ok, 保留 $(ls "$SNAP_DIR"/state-*.db 2>/dev/null | wc -l) 份)" >> "$LOG"
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