Start learning big data again - hadoop - day46 Hdfs, yarn's HA, mapreduce

Start learning big data again - hadoop - day46 Hdfs, yarn's HA, mapreduce (1) Ha (high availability) HA for HDFS Compared with Hadoop 1. X, HDFS in Hadoop 2. X adds two important features, HA and Federation. Ha is High Availability, which is used to solve the single point of failure of NameNode. This feature provides a standby for the pr ...

Posted on Wed, 01 Sep 2021 19:20:23 -0400 by deras