Tagged articles

FsImage

2 articles · Page 1 of 1

Nov 29, 2022 · Big Data

Understanding HDFS High Availability: Roles, Metadata Persistence, and Failover

This article explains the core concepts of HDFS High Availability, detailing primary and standby NameNode roles, failover mechanisms, shared storage systems, metadata persistence via EditLog and FsImage, and the processes for merging and synchronizing data across active and standby nodes.

EditLogFsImageHDFS

0 likes · 8 min read

Understanding HDFS High Availability: Roles, Metadata Persistence, and Failover

Big Data Technology & Architecture

Jul 10, 2020 · Big Data

Understanding Namenode Metadata Persistence: FsImage, EditLog, and SecondaryNamenode

This article explains how Hadoop's Namenode persists metadata using FsImage and EditLog, describes the checkpoint process during startup, and details the role of SecondaryNamenode in merging these files for efficient recovery, while also encouraging readers to like and share the content.

EditLogFsImageHadoop

0 likes · 4 min read

Understanding Namenode Metadata Persistence: FsImage, EditLog, and SecondaryNamenode