# Check the container's last exit code -weight: 500;">docker inspect <container_name> | grep -A 5 '"State"' # Check the container's last exit code -weight: 500;">docker inspect <container_name> | grep -A 5 '"State"' # Check the container's last exit code -weight: 500;">docker inspect <container_name> | grep -A 5 '"State"' "OOMKilled": true "State": { "Status": "exited", "Running": false, "OOMKilled": true, "ExitCode": 137 } "State": { "Status": "exited", "Running": false, "OOMKilled": true, "ExitCode": 137 } "State": { "Status": "exited", "Running": false, "OOMKilled": true, "ExitCode": 137 } -weight: 600;">sudo dmesg | grep -i "oom\|killed process" | tail -20 -weight: 600;">sudo dmesg | grep -i "oom\|killed process" | tail -20 -weight: 600;">sudo dmesg | grep -i "oom\|killed process" | tail -20 Out of memory: Kill process 12345 (node) score 847 or sacrifice child Killed process 12345 (node) total-vm:2048000kB, anon-rss:1834000kB Out of memory: Kill process 12345 (node) score 847 or sacrifice child Killed process 12345 (node) total-vm:2048000kB, anon-rss:1834000kB Out of memory: Kill process 12345 (node) score 847 or sacrifice child Killed process 12345 (node) total-vm:2048000kB, anon-rss:1834000kB # Live container stats -weight: 500;">docker stats --no-stream # Check if a memory limit is set -weight: 500;">docker inspect <container_name> | grep -i memory # Live container stats -weight: 500;">docker stats --no-stream # Check if a memory limit is set -weight: 500;">docker inspect <container_name> | grep -i memory # Live container stats -weight: 500;">docker stats --no-stream # Check if a memory limit is set -weight: 500;">docker inspect <container_name> | grep -i memory MemoryLimit # Run with limit -weight: 500;">docker run -m 512m your-image # Or -weight: 500;">update a running container -weight: 500;">docker -weight: 500;">update --memory 512m --memory-swap 512m <container_name> # Run with limit -weight: 500;">docker run -m 512m your-image # Or -weight: 500;">update a running container -weight: 500;">docker -weight: 500;">update --memory 512m --memory-swap 512m <container_name> # Run with limit -weight: 500;">docker run -m 512m your-image # Or -weight: 500;">update a running container -weight: 500;">docker -weight: 500;">update --memory 512m --memory-swap 512m <container_name> services: app: image: your-image deploy: resources: limits: memory: 512M services: app: image: your-image deploy: resources: limits: memory: 512M services: app: image: your-image deploy: resources: limits: memory: 512M # Get a shell in the container -weight: 500;">docker exec -it <container_name> sh # Check process memory inside container top # or cat /proc/meminfo # Get a shell in the container -weight: 500;">docker exec -it <container_name> sh # Check process memory inside container top # or cat /proc/meminfo # Get a shell in the container -weight: 500;">docker exec -it <container_name> sh # Check process memory inside container top # or cat /proc/meminfo # Check heap usage node --max-old-space-size=256 server.js # Add memory monitoring node -e "setInterval(() => console.log(process.memoryUsage()), 5000)" & # Check heap usage node --max-old-space-size=256 server.js # Add memory monitoring node -e "setInterval(() => console.log(process.memoryUsage()), 5000)" & # Check heap usage node --max-old-space-size=256 server.js # Add memory monitoring node -e "setInterval(() => console.log(process.memoryUsage()), 5000)" & -weight: 500;">docker run ---weight: 500;">restart=unless-stopped -m 512m your-image -weight: 500;">docker run ---weight: 500;">restart=unless-stopped -m 512m your-image -weight: 500;">docker run ---weight: 500;">restart=unless-stopped -m 512m your-image -weight: 500;">docker stats watch -n 5 -weight: 500;">docker stats --no-stream - [ ] Always set --memory limits in production - [ ] Set up alerting when container memory > 80% - [ ] Add heap dump tooling to Node/Java apps - [ ] Monitor with -weight: 500;">docker stats in a loop: watch -n 5 -weight: 500;">docker stats --no-stream