> ## 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.

# SQLITE_BUSY / Lock Contention (5m), SQLite KPI card, Vortex IQ Nerve Centre

> Count of SQLITE_BUSY / SQLITE_LOCKED returns on the single writer lock - a long write txn starving readers.

**[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:** Supporting Metrics
* **Chart:** kpi
* **Format:** number
* **Time window:** 5m
* **Alert trigger:** >5

## Calculation

Count of SQLITE\_BUSY / SQLITE\_LOCKED returns on the single writer lock - a long write txn starving readers.

## Known limitations

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