Re: making file system block size bigger to improve hdfs performance ?
By default, Linux file systems use a 4K block size. Block size of 4K means all I/O happens 4K at a time. Any *updates* to data smaller than 4K will result in a read-modify-write cycle on disk, ie, if a file was extended from 1K to 2K, the fs will read in the 4K, memcpy the region from 1K-2K into the vm page, then write out 4K again.If you make the block size 1M, the read-modify-write cycle will re
Alluxio - Data Orchestration for the Cloud
wHAT’S NEW ALLUXIO WEBINAR | What’s new in Alluxio Enterprise AI 3.2: Leverage GPU Anywhere, Pythonic Filesystem API, Write Checkpointing and more In today’s AI-driven world, organizations face unprecedented demands for powerful AI infrastructure to fuel their model training and serving workloads. Performance bottlenecks, cost inefficiencies, and management complexities pose significant challenge
カラムナストレージ - Yet Another HDIF?
Disclaimer: The opinions expressed here are my own and do not necessarily represent those of current or past employers.Twitter / Photos Disclaimer: The opinions expressed here are my own and do not necessarily represent those of current or past employers. Twitter / Photos Henry Robinsonによる、カラムナストレージの解説記事を翻訳しました。カラムナストレージは、Googleで開発されたデータ処理ツールであるDremelに使用されているファイルフォーマットであり、Clouderaが開発を進めるImpalaでも採用
AmazonS3 - HADOOP2 - Apache Software Foundation
S3 Support in Apache Hadoop Apache Hadoop ships with a connector to S3 called "S3A", with the url prefix "s3a:"; its previous connectors "s3", and "s3n" are deprecated and/or deleted from recent Hadoop versions. Consult the Latest Hadoop documentation for the specifics on using any the S3A connector. For Hadoop 2.x releases, the latest troubleshooting documentation. For Hadoop 3.x releases, the la
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