--- title: uber-sites | daily.dev description: Uber has developed a new algorithm to optimize the HDFS balancer, increasing data balance and throughput in their large-scale data storage clusters. The... canonical: https://daily.dev/posts/uber-sites-cteihjinc twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: uber-sites | daily.dev og:description: Uber has developed a new algorithm to optimize the HDFS balancer, increasing data balance and throughput in their large-scale data storage clusters. The... og:url: https://daily.dev/posts/uber-sites-cteihjinc og:image: https://api.daily.dev/og/posts/CtEiHJiNc.png og:image:alt: uber-sites og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # uber-sites **[Uber Engineering](https://daily.dev/sources/uber)** · 9 min read · 0 upvotes · 0 comments ## Summary Uber has developed a new algorithm to optimize the HDFS balancer, increasing data balance and throughput in their large-scale data storage clusters. The algorithm focuses on increasing the number of DataNode pairs, prioritizing smaller occupied DataNodes, and improving observability. As a result, the throughput increased by more than 5x, highly utilized DataNodes were brought down to 0%, overall usage of DataNodes was reduced, and cluster utilization improved. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#apache-hadoop](https://daily.dev/tags/apache-hadoop) [View this post on daily.dev](https://daily.dev/posts/uber-sites-cteihjinc) ```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","@type":"TechArticle","headline":"uber-sites","url":"https://daily.dev/posts/uber-sites-cteihjinc","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/uber-sites-cteihjinc"},"datePublished":"2024-03-14T15:45:37.060Z","dateModified":"2024-05-09T09:28:05.588Z","description":"Uber has developed a new algorithm to optimize the HDFS balancer, increasing data balance and throughput in their large-scale data storage clusters. The...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/b00900fb6b1bb98255946719963a13f1?_a=AQAEufR","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/b00900fb6b1bb98255946719963a13f1?_a=AQAEufR","isAccessibleForFree":true,"articleSection":"Uber Engineering","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Uber Engineering","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/uber","url":"https://daily.dev/sources/uber"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/uber-sites-cteihjinc","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"apache-hadoop","timeRequired":"PT9M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Uber Engineering","item":"https://daily.dev/sources/uber"},{"@type":"ListItem","position":3,"name":"uber-sites"}]} ```