[HBASE-21658] Should get the meta replica number from zk instead of config at client side

• Type: Improvement
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 2.3.0, 2.1.5
• Component/s: Client
• Hadoop Flags: Reviewed
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 28/Dec/18 12:49
• Updated: 14/May/19 12:13
• Resolved: 14/May/19 00:15

Description

For now, the ZKAsyncRegistry will use the znodePaths.metaReplicaZNodes for getting meta replicas. But actually, this config should only be used by HMaster. At client side, we should list the zk directory to get all the available meta replicas.

Issue Links

• links to: GitHub Pull Request #231