[HBASE-26479] Print too slow/big scan's operation_id in region server log

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.5.0, 3.0.0-alpha-2
• Component/s: regionserver, scan
• Hadoop Flags: Reviewed
• Assignee: Xuesen Liang
• Reporter: Xuesen Liang
• Created: 22/Nov/21 11:40
• Updated: 26/Nov/21 03:48
• Resolved: 25/Nov/21 04:12

Description

Tracing is very important in large-scale distributed systems.

The attribute _operation.attributes.id  of a scan request can be used as trace id between hbase client and region server.

We should print operation id in region server's log if the scan request is too slow or too big.

It will be very helpful for finding problematic requests.

Issue Links

• links to: GitHub Pull Request #3870