> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# WAL File Size (MB), SQLite KPI card, Vortex IQ Nerve Centre

> WAL frame count × page_size from PRAGMA wal_checkpoint. SQLite-distinctive - a ballooning WAL means a reader is holding back the checkpoint.

**[Nerve Centre KPIs](/nerve-centre/kpi-cards/sqlite) · [Audit Profile](/nerve-centre/kpi-cards/sqlite/audit) · [Sentiment Settings](/nerve-centre/kpi-cards/sqlite/sentiment)**

## At a glance

* **Category:** WAL & Locking
* **Type:** Key Metrics
* **Chart:** gauge
* **Format:** number
* **Time window:** RT
* **Alert trigger:** >32MB

## Calculation

WAL frame count × page\_size from PRAGMA wal\_checkpoint. SQLite-distinctive - a ballooning WAL means a reader is holding back the checkpoint.

## Known limitations

*Known limitations, FAQs, or reconciliation notes specific to this card. Replace this block when authored.*