Debug Your Infrastructure
Get Instant Solutions for Kubernetes, Databases, Docker and more
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Pod Stuck in CrashLoopBackOff
Database connection timeout
Docker Container won't Start
Kubernetes ingress not working
Redis connection refused
CI/CD pipeline failing
supabase Node Disk Pressure
A node is experiencing disk pressure, which may affect pod scheduling and performance.
Understanding Supabase and Its Monitoring Tools
Supabase is an open-source backend-as-a-service platform that provides developers with a suite of tools to build and scale applications. It offers features like a real-time database, authentication, and storage, all of which are crucial for modern web applications. To ensure the smooth operation of these services, monitoring tools like Prometheus are employed. Prometheus is a powerful open-source monitoring and alerting toolkit designed to collect and store metrics as time series data, providing insights into the performance and health of your infrastructure.
Symptom: Node Disk Pressure
In the context of Supabase, one of the common alerts you might encounter is Node Disk Pressure. This alert indicates that a node within your infrastructure is experiencing disk pressure, which can lead to degraded performance and issues with pod scheduling.
Details About the Node Disk Pressure Alert
The Node Disk Pressure alert is triggered when the disk usage on a node exceeds a certain threshold. This condition can cause Kubernetes to evict pods from the node to free up disk space, potentially disrupting your services. Disk pressure can occur due to various reasons, such as excessive logging, large temporary files, or insufficient disk space allocation.
Impact on Application Performance
When a node is under disk pressure, it can lead to slower response times, increased latency, and even application downtime if critical pods are evicted. This makes it essential to address the issue promptly to maintain the reliability of your application.
Steps to Fix the Node Disk Pressure Alert
To resolve the Node Disk Pressure alert, follow these actionable steps:
1. Identify the Affected Node
First, determine which node is experiencing disk pressure. You can use the following command to list nodes and their conditions:
kubectl get nodes -o json | jq '.items[] | {name: .metadata.name, conditions: .status.conditions}'
Look for nodes with a condition type of DiskPressure.
2. Free Up Disk Space
Once you've identified the affected node, SSH into it and check the disk usage:
ssh user@node-ip
sudo df -h
Identify large files or directories consuming disk space and remove unnecessary files. You can use tools like ncdu to analyze disk usage:
sudo apt-get install ncdu
sudo ncdu /
3. Optimize Disk Usage
Consider implementing log rotation to prevent log files from consuming excessive disk space. You can configure logrotate on your node:
sudo nano /etc/logrotate.d/myapp
Add a configuration similar to:
/var/log/myapp/*.log {
daily
missingok
rotate 7
compress
delaycompress
notifempty
create 0640 root root
}
4. Ensure Sufficient Disk Resources
If disk pressure is a recurring issue, consider resizing your node's disk or adding additional storage. You can resize a disk in cloud environments like AWS or GCP by following their respective documentation:
Conclusion
By following these steps, you can effectively address the Node Disk Pressure alert in your Supabase infrastructure. Regular monitoring and maintenance of disk usage will help prevent future occurrences and ensure the stability and performance of your applications.
Master
supabase Node Disk Pressure
debugging in Minutes
— Grab the Ultimate Cheatsheet
(Perfect for DevOps & SREs)
Most-used commands
Real-world configs/examples
Handy troubleshooting shortcuts
Oops! Something went wrong while submitting the form.
supabase Node Disk Pressure
Cheatsheet
(Perfect for DevOps & SREs)
Most-used commands
Oops! Something went wrong while submitting the form.
MORE ISSUES
Backed by
Deep Sea Tech Inc. — Made with ❤️ in Bangalore & San Francisco 🏢