Category: Infrastructure
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Smart Search Autosuggestion System at OLX
Search is one of the most-used features on OLX. Every day, millions of users type what they want — sometimes clearly, sometimes not. They might type “dzire car delhi”, “hondaa city”, or “iphone13 pro”.Our job? To make sure OLX understands what a user actually mean — that too instantly. This post is about how we…
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Building Scalable & Cost Effective Audit Platform
Auditing is a critical component in platforms like OLX India where large volumes of user-generated content and transactions occur daily. It ensures transparency and accountability by recording key activities related to users and ads like account creation, account updates, ad postings, edits, and moderation actions. The audit trail system helps detect and prevent fraud, support…
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Uptime & Latency Monitoring at OLX India
At OLX, reliability is at the heart of everything we do. Even the smallest downtime can impact user trust and business outcomes. While our external services were well monitored, we soon realised our internal services lacked the same visibility—leaving critical blind spots in our observability journey.
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Logging at OLX with ClickHouse & Grafana
At OLX India, our services generate huge volumes of logs that are essential for developers, particularly when debugging or addressing incidents. Historically, we’ve utilized a mix of both open-source and licensed tools, including ELK, NewRelic, and CloudWatch, to manage and analyze these logs. However, over time, we encountered several challenges with these tools that hindered…
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Scaling Amazon Elastic Kubernetes Service (EKS) Infrastructure at OLX India
In today’s fast-paced digital world, where instant gratification is key, OLX faces the challenge of ensuring sellers can quickly post ads for buyers to make fast purchases. While striving for speed and efficiency, OLX India has faced technical complexities in scaling backend systems. This article will explore how OLX India overcomes these challenges and scales…