How CometChat Transitioned to a Reliable Data Layer and Cut Costs by 30%

Overview

CometChat’s MySQL/InnoDB setup hit its limit managing 1.7 million tables, with frequent stalls during traffic spikes threatening global enterprise trust. While their setup failed under volume, migrating this complex, live environment remained a major risk. Mydbops led the end-to-end migration from MySQL to a distributed TiDB architecture, ensuring a safe, zero-downtime transition with no service disruption. Post-migration, infrastructure costs fell 30%, achieving 99.99% availability.
↑
↓
30
%
TCO Reduction
Slashed monthly cloud infrastructure spend.
↑
99.99
%
↓
Uptime
Secured consistent availability during peak traffic.
50
↑
%
↓
Storage Savings
The migration cut the physical storage footprint in half.
Zero
↑
↓
Revenue Interruption
Seamless migration with Zero downtime for clients.
TiDB
Consulting Services

About

CometChat logo
CometChat is the global leader in communication infrastructure, powering real-time chat, voice, and video for thousands of platforms across healthcare, edutech, and virtual marketplaces. Following its March 2026 funding, the company is rapidly scaling its AI-driven customer service platform to serve massive concurrent global audiences. By delivering low-latency, enterprise-grade connectivity, CometChat transforms any application into a vibrant, interactive ecosystem.
Ravi Ranjan, VP Engineering, CometChat
★★★★★
Mydbops has been a trusted database partner since 2022. They first helped us adopt an InnoDB Cluster with ProxySQL, which improved our scalability. In 2024, as demands increased, they proactively recommended and flawlessly executed a zero-data-loss migration to TiDB, significantly optimizing our infrastructure costs. Their technical depth, responsiveness, and round-the-clock support consistently stand out. We highly recommend Mydbops to any organization looking for a reliable database partner.
Ravi Ranjan
VP - Engineering, CometChat 🇺🇸
CometChat logo
Deployment Type
Database Stack
Outcome
Cloud-Based Deployment
Migration from MySQL to TiDB
30% TCO Reduction
Deployment Type
Cloud-Based Deployment
Database Stack
Migration from MySQL to TiDB
Outcome
30% TCO Reduction

Business Challenges

Overview
CometChat is the backbone for communication in thousands of apps. At this scale, their MySQL setup carrying over 1.7 million tables was becoming a liability. Unpredictable system stalls were threatening the service levels promised to global enterprise clients. They needed to move to a modern system, but they needed a partner who could guarantee a safe migration process.

Migration Risk & Complexity:

‍The fear that moving 1.7M tables could cause significant downtime or data loss, damaging the trust of their enterprise partners.

Engineering Resource Drain:

Senior developers were stuck "firefighting" the old MySQL clusters instead of shipping new code.

Inefficient Scaling Costs:

As data grew, the old architecture required more expensive hardware, causing infrastructure costs to rise at an unsustainable rate.

Goals
The key objectives the client was aiming to achieve:

→ Execute a safe migration to a stable data layer.

→ Secure 99.99% uptime to maintain market trust.

→ Reduce the storage footprint to lower monthly costs.

→ Automate recovery to ensure 24/7 business continuity.

Risks if Not Addressed
If left unresolved, these challenges posed serious risks

Solution Provided by Mydbops

Mydbops acted as the strategic partner for a complex migration, moving the environment to a distributed system designed for extreme metadata counts and high-volume traffic.
▸ Pre-Migration Audit:


Checked the 1.7M table schema to ensure the new TiDB architecture would handle the metadata load without performance drops.

‍

▸ Migration Design:


Set up a parallel environment where compute and storage scale separately, ensuring a clean transition from their setup.

‍

▸ Zero-Downtime Migration:

Managed the data move and cut-over with precision, protecting the user experience throughout the entire process.

‍

▸ Post-Migration Accountability:

Put automated failover and performance tuning in place, providing the high-level expertise needed to manage the new environment long-term.

Cometchat - TiDB Architecture PD PD PD PD Cluster TiDB TiDB TiDB TiDB TiDB Cluster TiKV TiKV TiKV TiKV TiKV TiKV TiFlash TiFlash TiFlash Storage Cluster Application via MySQL Protocol TSO/Data location Metadata DistSQL API KV API

Results and Impact

Key Outcomes

✅ 50% Reduction in Storage Space

‍By utilizing TiDB’sRocksDB storage engine, we reduced the disk footprint by 50% compared to MySQL InnoDB. This architecture also ensures the environment remainsfragmentation-free, maintaining high performance over time.

Data Footprint Optimization
MySQL InnoDB (Uncompressed)100%
TiDB RocksDB Engine50%
50% Storage Efficiency Gained

‍

✅  Consistent Reliability (99.99% Uptime)

‍TiDB providesinbuilt High Availabilityby maintaining three synchronized copies of data. Leveraging theRAFT consensus protocol, the system executes automated failover in seconds, ensuring zero service interruption.

99.99%
Uptime
SLA & Reliability Assurance

‍

✅ Friction-free Growth

‍The platform now utilizesautomated sharding, providing indefinite horizontal scalability. This allows the data layer to expand across nodes automatically as demand increases, without manual rebalancing.

‍

✅ 30% Operational Savings

‍By migrating to a more modern infrastructure, CometChat reduced its monthly cloud spend by 30%.

TCO Efficiency (Monthly Spend)
100%
70%
↓ 30% Monthly Savings Achieved

‍

‍✅ Zero-Impact Operations (Online DDL)

‍Schema changes and index additions are now performedcompletely online. This eliminates maintenance windows and reduces operational complexity, allowing the team to ship updates without impacting live users.

‍

‍✅ Market Trust

‍By successfully completing a high-stakes migration, CometChat solidified its reputation as a reliable partner for global enterprise brands.

Capabilities MySQL Setup Mydbops TiDB
1.7M+ Table Support Limited / High Latency ✓ Seamless Performance
Online DDL Ops Manual / High Risk ✓ Zero User Impact
Failover & Recovery Manual Intervention ✓ Automated RAFT
Horizontal Scalability Physical Ceiling ✓ Elastic Expansion
A Partner You Can Trust 

‍For organizations at a massive scale, the biggest risk isn't the software, it's the lack of a reliable partner to stand behind it.

‍

Mydbops provides the technical accountability and architectural oversight required to move large-scale data operations safely. We specialize in the design and execution of complex TiDB migrations. We don't just provide consulting; we provide the peace of mind that your transition will be seamless, cost-effective, and ready for global demand.

Talk to our Certified TiDB Expert→ →

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