[IMPALA-11007] Webserver should not log errors when handling HTTP HEAD

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.1.0
• Epic Color: ghx-label-8
• Assignee: Andrew Sherman
• Reporter: Andrew Sherman
• Created: 05/Nov/21 17:14
• Updated: 03/Dec/21 05:35
• Resolved: 10/Nov/21 16:28

Description

If you send a HEAD request to Impala's webserver, for example

curl -I http://localhost:25000/metrics

then the logs will contain scary messages:

I1025 10:39:52.337021 3578299 webserver.cc:591] Webserver: error reading: Connection reset by peer

This does not happen with

curl http://localhost:25000/metrics

Fix this by making the Impala webserver not send any content in replies to a HEAD message