How to change the open files for the pod in RKE2 cluster?
This document (000021920) is provided subject to the disclaimer at the end of this document.
Environment
- RKE2
- K3s
Situation
When there is a need to increase the open file limit, when the system or application running on it is hitting the maximum allowed number of open file descriptors.
Resolution
SSH into the worker node where the open file is to be increased
systemctl edit rke2-agentModify the file
### Editing /etc/systemd/system/rke2-agent.service.d/override.conf
### Anything between here and the comment below will become the new contents of the file
[Service]
LimitNOFILE=xxxx # use your value instead of xxxOnce you save, this will create an override.conf file with new setting under /etc/systemd/system/rke2-agent.service.d/
Note: Please be sure to place the above configuration between the top/bottom comment lines in the file to take effect. Also, the limit value nofiles may not take effect if the value used for rke2-agent service is greater than the OS ulimit, in this case, increase the OS ulimit.
Restart rke2-agent
sudo systemctl restart rke2-agent.servicePlease create a new pod on this node for testing and execute it to view the ulimit -n value.
Status
Disclaimer
This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.
- Document ID:000021920
- Creation Date: 17-Jul-2025
- Modified Date:21-Jul-2025
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- SUSE Rancher
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