[IMPALA-12590] Precommit build script cannot execute dmesg to check for OOM-kills on Ubuntu 20.04

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.4.0
• Epic Color: ghx-label-2
• Assignee: Laszlo Gaal
• Reporter: Laszlo Gaal
• Created: 01/Dec/23 18:21
• Updated: 22/Jan/24 21:20
• Resolved: 22/Jan/24 21:20

Description

Apparently Ubuntu 20.04 restricted dmesg access to root (or possibly the admin group), so bin/jenkins/finalize.sh cannot check for OOM kills since precommit builds were migrated to this platform.

The symptom is

dmesg: read kernel buffer failed: Operation not permitted

, in https://github.com/apache/impala/blob/master/bin/jenkins/finalize.sh#L44