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Feb 5, 2026
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KB article: how to opt out of sharing crash reports #5445

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add KB article on how to opt out of sharing crash reports
Blargian Feb 4, 2026
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Update opt-out-core-dump-collection.mdx
Blargian Feb 4, 2026
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Update opt-out-core-dump-collection.mdx
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52 changes: 52 additions & 0 deletions knowledgebase/opt-out-core-dump-collection.mdx
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---
date: 2026-02-04
title: 'How to opt out of core dump collection'
description: 'This article shows you how you can opt out of core dump collection on ClickHouse Cloud'
tags: ['Managing Cloud']
---

import optOut from '@site/static/images/crash-reports.png';
import Image from '@theme/IdealImage';

{frontMatter.description}
{/* truncate */}

## Overview

As part of our ongoing efforts to improve the stability and reliability of our cloud services, ClickHouse Cloud will begin collecting core dumps in the event of server crashes starting on **February 27, 2026**.

Core dump collection enables us to:
- More quickly identify root causes of crashes
- Resolve issues faster
- Improve the overall service experience

## What's collected

Core dumps capture the state of a process at the time of a crash and may include sensitive information resident in memory, such as:
- Connection credentials
- Encryption keys
- Query strings
- Other data in memory at the time of the crash

### Data protection

- **Regional Storage**: Data is collected and stored in the same region as your service
- **Additional Protections**: Enhanced security measures are applied to collected data
- **Limited Retention**: Data is retained only for a short period to support debugging and is securely destroyed afterward

## Exclusions

The following services are **automatically excluded** from core dump collection:
- Services subject to **HIPAA** compliance
- Services subject to **PCI** compliance
- **BYOC** (Bring Your Own Cloud) services

## How to opt out

1. Navigate to the [ClickHouse Cloud Console](https://clickhouse.cloud)
2. Select your service
3. Go to the **Settings** tab
4. Locate the "Share crash reports with ClickHouse" option at the bottom of the settings page
5. Disable the option to opt out

<Image img={optOut} size="md" alt="Where to find the opt out option in Cloud UI"/>
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