Monitoring Task: High CPU or Memory Usage

Description

Detect and respond to spikes in resource consumption that can degrade performance or cause crashes.

Detection Methods

• Prometheus alert rules
• top, htop, or ps output
• Grafana dashboard visualization

Triage Steps

1. Identify top consumers:

   top -o %CPU
   top -o %MEM
   

   or with more detail:

   ps aux --sort=-%mem | head
   

2. Check container stats if Docker is in use:

   docker stats
   

3. Kill or restart offending process if required:

   kill -9 <pid>
   

Preventive Actions

• Set resource limits (cgroups, containers)
• Use swap and memory thresholds
• Scale vertically or horizontally

Tools & Commands

• top, htop, ps, docker stats, Prometheus + Grafana