[HBASE-25542] Add client detail to scan name so when lease expires, we have clue on who was scanning

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.2
• Fix Version/s: 3.0.0-alpha-1, 2.5.0, 2.4.2
• Component/s: scan
• Hadoop Flags: Reviewed
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 02/Feb/21 00:42
• Updated: 12/Mar/21 08:39
• Resolved: 08/Feb/21 22:42

Description

On a busy cluster, seeing a bunch of this:

regionserver.RSRpcServices: Scanner -5594731657924732088 lease expired on region hbase:meta,,1.1588230740

Trying to figure out originator is a little tough; there isn't enough in for in the above.

scanid is a long but scan name is a string.. perhaps add in the client ip+port as scan id prefix? Or add the info to the value – probably better – and dump it out when we get one of these expirations?

Issue Links

• links to: GitHub Pull Request #2930