[YUNIKORN-3000] Add support for setting GOGC / GOMEMLIMIT in Helm chart

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.7.0
• Component/s: release, release-notes
• Labels: pull-request-available
• Target Version: 1.7.0
• Assignee: Craig Condit
• Reporter: Craig Condit
• Created: 13/Dec/24 17:44
• Updated: 13/Dec/24 19:53
• Resolved: 13/Dec/24 19:53

Description

As of Go 1.19, Go supports reading a GOMEMLIMIT environment variable to limit the amount of RAM the process will use before garbage collecting. This is a soft limit, but helps constrain resource usage and can help avoid being OOMKilled by Kubernetes. Since we set our existing memory request to 1 GiB, and limit to 2 GiB, I propose setting the default GOMEMLIMIT value to 1.5 GiB. This allows for non-GC overhead plus transient spikes, and should keep us well under the threshold for being OOMKilled. We should also allow overriding GOGC as well.

Issue Links

• links to: GitHub Pull Request #185