ReinDB
ReinDB
Read-only drift monitoring for PostgreSQL, MySQL, SQL Server
Keep your database on course. See what changed, with evidence.
ReinDB learns what normal looks like for each database, flags what drifts from it and shows the evidence. When a statement regresses, it writes the fix as a script your DBA can test.
Features
- Baselines and drift flags: Hourly measurements per statement, compared with a 14-day median for the same hour of day. Regressions, new heavy statements, execution spikes, plan changes (with pg_stat_monitor) and database-wide drift, each NEW, ONGOING or RESOLVED.
- Ask in plain english: “Load over the last 3 days”, “WAL since yesterday”, “what flags fired this week?”, or a statement id. Ask from any page. Built-in rules or your approved model read the question, a badge says which, and the chart and caption always come from the data.
- Fix scripts a DBA can test: CREATE INDEX CONCURRENTLY, ALTER TABLE … ALGORITHM=INPLACE, LOCK=NONE, WITH (ONLINE = ON), forcing a good plan back with Query Store, per-role settings, invisible indexes before drops. Every line commented out, every step with its undo. Never runs by itself.
- Settings analysis against workload: Cache hit ratio, dead rows and vacuum, never-analyzed tables, unused indexes, forced checkpoints, buffer pool misses, redo capacity, connection headroom, checked against this database’s own numbers.
- Baseline tagging and comparison: Today against yesterday or a week ago, this week against last, in one click. Or any range from 6 hours to 30 days against the usual for those hours, or a saved baseline like “before release 4.2”, statement by statement. Copy a link to share the exact view.
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