[HBASE-10945] [0.89-fb] Retry getting a ZK instance in case of UnknownHostExceptions

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 0.89-fb
• Fix Version/s: 0.89-fb
• Assignee: Unassigned
• Reporter: Gaurav Menghani
• Created: 09/Apr/14 05:59
• Updated: 17/Jun/22 05:31
• Resolved: 06/Apr/15 19:52

Description

In case of DNS errors on the machine, locating a ZK quorum might throw UnknownHostException-s, but this might be a temporary issue in most cases. Retrying a couple of times, might resolve this problem. We already retry while getting ZK node data, it only makes sense to do the same while creating the connection.