---
title: "How $0 Egress Fees Unlock Real-Time Analytics at Scale with ClickHouse"
url: "https://bitrefinery.com/blog/how-zero-egress-fees-unlock-real-time-analytics-at-scale-with-clickhouse"
description: "Cloud egress fees can quietly destroy your analytics budget. Here's how eliminating them transforms ClickHouse deployments from cost centers into competitive advantages."
author: "Bit Refinery Team"
date: "2026-02-14"
lastmod: "2026-02-14"
tags: ["clickhouse", "egress-fees", "real-time-analytics", "bare-metal", "cloud-costs"]
source: "blog CMS"
---

# How $0 Egress Fees Unlock Real-Time Analytics at Scale with ClickHouse

Let's talk about the silent budget killer in modern analytics infrastructure: **egress fees**.

If you're running ClickHouse on AWS, Azure, or GCP, you've probably noticed something frustrating. Your query performance is incredible—sub-second responses on billions of rows, blazing fast aggregations, everything you'd expect from a columnar database. But then the cloud bill arrives and there's this line item that makes you do a double-take. Data transfer out. Egress. Whatever they call it, it's expensive.

And it's not just expensive in a "that's annoying" way. For real-time analytics workloads, egress fees can genuinely reshape your architecture in ways that make your system worse. Let me explain why, and how $0 egress changes everything.

## The Hidden Tax on Analytics


![Cost comparison chart: AWS vs Bare Metal for ClickHouse infrastructure](/api/storage/files/blog-images/infographic-1771066925743.jpg)

Here's the thing about ClickHouse—it's designed to move data. Fast. That's literally the point. You're querying massive datasets, running aggregations, feeding dashboards, streaming results to applications. Data doesn't just sit there looking pretty; it flows.

On hyperscale cloud platforms, that flow costs money. A lot of it.

AWS charges $0.09 per GB for the first 10 TB of egress per month. Sounds reasonable until you do the math on a real analytics workload. Let's say you're running a SaaS analytics platform that serves 1,000 dashboard users. Each user pulls down 500 MB of aggregated data per day (charts, tables, exports). That's 500 GB daily, or roughly 15 TB monthly.

**15 TB × $0.09 = $1,350 per month. Just for moving data out.**

And that's a conservative estimate. Ad tech companies querying billions of impression records? E-commerce platforms analyzing clickstream data in real time? Financial services running risk models? You're looking at 50–100 TB monthly without breaking a sweat. Suddenly you're paying $4,500–$9,000/month just to access your own data.

That's before compute, storage, or any actual infrastructure costs.

## How Egress Fees Warp Your Architecture

The really insidious part isn't just the cost—it's how egress fees force you to make compromises that hurt performance and user experience.

### 1. You Start Caching Everything

When every query result costs money to deliver, you cache aggressively. Redis layers, CDN caching, pre-computed materialized views. You're not doing this because it makes the system better; you're doing it to avoid egress charges.

But caching introduces staleness. Real-time analytics stops being real-time. Users see data from 5 minutes ago, 15 minutes ago, sometimes hours. The whole point of ClickHouse—instant access to fresh data—gets neutered because you can't afford to actually query it on demand.

### 2. You Limit Data Granularity

Maybe you start aggregating more heavily before sending results. Instead of returning row-level data and letting the frontend handle grouping, you pre-aggregate in ClickHouse and send smaller payloads.

This works until someone asks for a different slice of the data. Or wants to drill down. Or needs to export raw records for analysis. Now you're either rebuilding queries (more egress) or telling users "sorry, we don't support that."

### 3. You Avoid Multi-Region Deployments

ClickHouse shines in distributed setups—replicas across regions for low-latency reads, sharding for horizontal scale. But cross-region data transfer on cloud platforms? That's egress on steroids.

AWS charges $0.02/GB for inter-region transfer. If you're replicating a 10 TB dataset across three regions for disaster recovery and performance, that's $600 just for the initial sync. Monthly delta replication adds hundreds more.

So you don't do it. You stick with a single region, accept higher latency for some users, and hope nothing catastrophic happens.

### 4. You Over-Optimize Queries

Developers start obsessing over query efficiency not because of performance, but because of cost. Every JOIN, every subquery, every column in the SELECT clause gets scrutinized. "Do we really need to return that field? It adds 50 MB to the result set."

This isn't engineering—it's accounting. And it slows down development, increases complexity, and makes your codebase harder to maintain.

## What $0 Egress Actually Unlocks

Now imagine removing that constraint entirely. No metering. No cost per gigabyte. Unlimited 1 Gbps bandwidth included in your monthly server cost.

Here's what changes:

### Real-Time Becomes Actually Real-Time

You can query ClickHouse directly from dashboards without worrying about cost. No caching layer, no staleness, no "this data is 10 minutes old" disclaimers. Users see live data because there's no financial penalty for refreshing a chart.

For log analytics, this means engineers can tail production logs in real time without triggering alerts from finance. For ad tech, it means campaign performance updates every few seconds instead of every 15 minutes. For e-commerce, it means inventory counts that reflect actual warehouse state, not a cached snapshot.

### You Can Actually Use Distributed Architectures

Multi-region ClickHouse deployments become viable. Replicate data freely across data centers for low-latency reads and disaster recovery. Shard massive tables across nodes without worrying about inter-node transfer costs.

We've seen customers move from single-region AWS setups to multi-region bare metal deployments and cut total infrastructure costs by 60% while improving query latency for global users. That's not a typo. Sixty percent.

### Data Exports Stop Being a Budget Line Item

Users want to export 5 GB of CSV data for offline analysis? Fine. No problem. Export away.

This sounds trivial but it's huge for SaaS companies. How many times have you seen "export limits" in analytics tools? 10,000 rows max, or pay $500/month for unlimited exports. That's not a product decision—it's an egress tax passed to customers.

With $0 egress, you can offer unlimited exports as a standard feature and actually differentiate your product instead of nickel-and-diming users.

### You Stop Optimizing for Cost and Start Optimizing for Users

Developers can write queries that return the data users actually need, not the minimum viable dataset that keeps egress under budget. Product teams can ship features faster because they're not constantly negotiating with engineering about data transfer costs.

This is the intangible benefit that's hard to quantify but impossible to ignore once you experience it. Your team stops thinking like accountants and starts thinking like engineers again.

## The Bare Metal Advantage for ClickHouse

ClickHouse is already fast. Put it on dedicated bare metal with NVMe storage and it's absurdly fast. But the real unlock isn't just performance—it's **predictable economics**.

At Bit Refinery, our Gold tier servers (80 cores, 1 TB RAM, 44 TB RAID6 SSD) run $2,800/month with unlimited 1 Gbps bandwidth. Zero egress fees. Zero metering. Zero surprises.

Compare that to AWS:
- r6i.metal instance (128 vCPUs, 1 TB RAM): ~$6,700/month
- 40 TB EBS storage (gp3): ~$3,600/month
- 50 TB egress: ~$4,500/month

**Total: ~$14,800/month** vs. **$2,800/month** on bare metal. And that AWS estimate assumes you're only doing 50 TB of egress. If you're actually using ClickHouse at scale, you're probably doing more.

Oh, and the AWS setup is virtualized, so you're sharing CPU and I/O with other tenants. Bare metal gives you the whole machine. No noisy neighbors, no hypervisor overhead, no throttling.

## Real-World Impact: A Case Study

We worked with an ad tech company that was spending $8,000/month on AWS egress alone. They were running ClickHouse to serve real-time bidding analytics to advertisers—billions of rows, hundreds of concurrent users, dashboards refreshing every 30 seconds.

Their AWS bill was out of control. They'd implemented aggressive caching (Redis cluster costing another $2,000/month), reduced dashboard refresh rates to save egress, and were actively discouraging users from exporting data.

We migrated them to two Platinum tier servers (80 cores, 3 TB RAM each) in a replicated setup. Total cost: $8,000/month for both servers. They shut down the Redis cluster, enabled real-time dashboard updates, and removed export limits.

Their AWS bill had been $18,000/month (compute + storage + egress + Redis). New bare metal cost: $8,000/month. They saved $10,000/month and delivered a better product.

And because egress was no longer a concern, they started offering new features—real-time alerting, Slack integrations that push chart images, API access for customers to pull raw data. Features they'd previously avoided because of cost.

## The Bottom Line

Egress fees aren't just a line item on your cloud bill—they're a constraint that shapes your entire analytics architecture. And not in a good way.

ClickHouse is built for speed and scale. It's designed to ingest billions of rows and serve queries in milliseconds. But if you're running it on infrastructure that charges you every time data leaves the building, you're not really using ClickHouse to its full potential. You're using a neutered version that's been optimized for cost instead of performance.

$0 egress changes the equation. Suddenly you can build the system your users actually need instead of the system your CFO will tolerate. Real-time analytics becomes real-time. Distributed architectures become viable. Data exports stop being a budget negotiation.

And your monthly bill becomes predictable. No surprises. No usage spikes. Just a flat monthly cost for dedicated hardware that's yours to use however you want.

That's the unlock. Not just cost savings—though those are real—but the freedom to build better systems without constantly second-guessing every architectural decision based on egress charges.

If you're running ClickHouse at scale and egress fees are eating your budget, it's worth doing the math on bare metal. The numbers might surprise you. And your users will definitely notice the difference.

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**Ready to eliminate egress fees from your ClickHouse infrastructure?** We offer fully managed ClickHouse deployments on bare metal with $0 egress, 99.99% uptime, and predictable monthly pricing. [Get in touch](https://bitrefinery.com/contact) and let's talk about your workload.