> ## 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.

# Queries Blocked on Locks, Amazon Redshift KPI card, Vortex IQ Nerve Centre

> From STV_LOCKS / SVV_TRANSACTIONS - blocked transactions waiting on locks.

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

## At a glance

* **Category:** Errors
* **Type:** Supporting Metrics
* **Chart:** kpi
* **Format:** number
* **Time window:** RT
* **Alert trigger:** >0 sustained

## Calculation

From STV\_LOCKS / SVV\_TRANSACTIONS - blocked transactions waiting on locks.

## Known limitations

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