> ## 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.

# Dropped Mutations or Hinted-Handoff Growth, Apache Cassandra KPI card, Vortex IQ Nerve Centre

> Dropped Mutations or Hinted-Handoff Growth for Apache Cassandra on the Vortex IQ Nerve Centre.

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

## At a glance

* **Category:** Nerve Centre
* **Type:** Key Metrics
* **Chart:** alert\_list
* **Format:** number
* **Time window:** 5m
* **Alert trigger:** dropped MUTATION >0 OR hints pending climbing 5m

## Calculation

Derived from the Apache Cassandra `stats` endpoint. Definition not yet documented in the manifest.

## Known limitations

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