[HBASE-14544] Allow HConnectionImpl to not refresh the dns on errors

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.0, 1.1.2
• Fix Version/s: 1.2.0, 1.3.0, 2.0.0
• Component/s: Client

Release Note

By setting hbase.resolve.hostnames.on.failure to false you can reduce the number of dns name resolutions that a client will do. However if machines leave and come back with different ip's the changes will not be noticed by the clients. So only set hbase.resolve.hostnames.on.failure to false if your cluster dns is not changing while clients are connected.

• Assignee: Elliott Neil Clark
• Reporter: Elliott Neil Clark
• Created: 02/Oct/15 21:18
• Updated: 01/Jul/22 21:41
• Resolved: 05/Oct/15 17:04

Description

Some clusters will have static ip addresses and forced dns lookup can cause extra instability. Allow users to tun that feature off, if wanted.

Issue Links

• is related to: HBASE-13067 Fix caching of stubs to allow IP address changes of restarted remote servers