--- title: Best Quastor Daily posts — October 2022 | daily.dev description: The most upvoted Quastor Daily posts from October 2022, curated by the daily.dev community. canonical: https://daily.dev/sources/quastor/best-of/2022/10 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/quastor/best-of/2022/10 og:type: website og:site_name: daily.dev og:title: Best Quastor Daily posts — October 2022 | daily.dev og:description: The most upvoted Quastor Daily posts from October 2022, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of Quastor Daily — October 2022 1. 1 [](https://daily.dev/posts/building-a-scalable-notification-service-zghziuwzk "Building a Scalable Notification Service") Article Quastor Daily · 4y Building a Scalable Notification Service Razorpay is one of India’s most valuable fintech startups. The company powers payments for over 8 million businesses in India and has been growing extremely quickly. With the increase in transactions, the Razorpay team encountered a few scalability issues - Database Bottleneck - Read query performance was getting worse and it couldn’t scale to meet the required input/output operations per second. 96 2 2. 2 [](https://daily.dev/posts/how-notion-sharded-their-postgres-database-12atwwfau "How Notion Sharded Their Postgres Database") Article Quastor Daily · 4y How Notion Sharded Their Postgres Database How Notion Sharded Their Postgres Database is a web/mobile app for creating your personal workspace. You can store notes, tasks, wikis, kanban boards and other things in a Notion workspace. Sharding adds an increased maintenance burden, constraints in the application code and much more architectural complexity. The Notion team looked at the hardware constraints they were dealing with. 71 5 3. 3 [](https://daily.dev/posts/how-canva-built-a-reverse-image-search-system-cwuyrfgnx "How Canva Built a Reverse Image Search System") Article Quastor Daily · 4y How Canva Built a Reverse Image Search System Canva built a reverse image search system that could take in an image and return similar images in the dataset. They used Perceptual Hashing and Hamming Distance to build the system. The system was built on DynamoDB with Multi-Index Hashing - Tech SnippetsLessons Learned. 12 [See all Quastor Daily archives](/sources/quastor/best-of) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/sources/quastor/best-of/2022/10#page","url":"https://daily.dev/sources/quastor/best-of/2022/10","name":"Best Quastor Daily Posts — October 2022","description":"The most upvoted Quastor Daily posts from October 2022, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/quastor/best-of/2022/10#items","numberOfItems":3,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/building-a-scalable-notification-service-zghziuwzk","name":"Building a Scalable Notification Service"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/how-notion-sharded-their-postgres-database-12atwwfau","name":"How Notion Sharded Their Postgres Database"},{"@type":"ListItem","position":3,"url":"https://daily.dev/posts/how-canva-built-a-reverse-image-search-system-cwuyrfgnx","name":"How Canva Built a Reverse Image Search System"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Sources","item":"https://daily.dev/sources"},{"@type":"ListItem","position":3,"name":"Quastor Daily","item":"https://daily.dev/sources/quastor"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/quastor/best-of"},{"@type":"ListItem","position":5,"name":"October 2022"}]}]} ```