[HDFS-14310] Improve documents for using DNS to resolve namenodes and routers

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Fengnan Li
• Reporter: Fengnan Li
• Created: 22/Feb/19 07:31
• Updated: 26/Jun/19 00:55

Description

With https://issues.apache.org/jira/browse/HDFS-14118, clients can just use one domain name to access either namenodes or routers, instead of putting all of their domain names in the config.

Update the below documents with this new feature:

• hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSHighAvailabilityWithQJM.md
• hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSHighAvailabilityWithNFS.md
• hadoop-hdfs-project/hadoop-hdfs-rbf/src/site/markdown/HDFSRouterFederation.md
• hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/ObserverNamenode.md

 

Issue Links

• is blocked by: HDFS-14600 DataNodes using DNS NameNode discovery will not send block reports when failover
• is blocked by: HDFS-14601 NameNode HA with single DNS record for NameNode discovery prevent running ZKFC
• is related to: HDFS-14118 Support using DNS to resolve nameservices to IP addresses