[HBASE-7861] Use the ServerName in the Connection#getClient and Connection#getAdmin code

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.95.2
• Fix Version/s: 0.95.0
• Component/s: Client
• Hadoop Flags: Incompatible change, Reviewed
• Assignee: Nicolas Liochon
• Reporter: Nicolas Liochon
• Created: 15/Feb/13 21:56
• Updated: 23/Sep/13 18:30
• Resolved: 16/Feb/13 14:16

Description

This is again a subpart of HBASE-7590. The patch already in HBASE-7590 contains a bad fix for this (confusion with seq number). This JIRA tries to fix it correctly.

The client code mostly uses hostname:port to get the connection to the region server. As a side effect if a server dies and comeback, the client won't notice. This is in theory, because the regions it's looking for are likely to be somewhere else.

In any case, if we add some dead server management in the client (HBASE-7590), we need to manage do the distinction between the server, to be sure that we're not declaring dead a server that has restarted.

Issue Links

• is required by: HBASE-7590 Add a costless notifications mechanism from master to regionservers & clients