Docker CLI Command Hangs When The Daemon Is Frozen
If a developer tool calls docker image inspect, docker compose, or docker system df without a deadline, a frozen Docker Desktop backend can make the tool look broken even when the real incident is disk pressure, Docker.raw growth, or a backend restart.
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liuminsheng3@gmail.com - SafeDisk Docker CLI Free Scope Check
Docker CLI hangs in your dev tool? Get the first safe timeout check.
Email first for the read-only Docker and disk check. If the fix needs a cleanup order, timeout policy, or volume-safe recovery path, reply for the $29 review.
df -h; ls -lh "$HOME/Library/Containers/com.docker.docker/Data/vms/0/data/Docker.raw" 2>/dev/null; docker system df -v 2>/dev/null || true
Paste this into your issue reply or error message.
Use this when your tool cannot tell whether Docker is missing an image, restarting, or blocked by disk pressure. It gives users a safe next step without asking them to reset local Docker state.
Docker Desktop did not answer before the 5s deadline.
Please do not reset Docker Desktop yet. First collect read-only evidence:
df -h
ls -lh "$HOME/Library/Containers/com.docker.docker/Data/vms/0/data/Docker.raw" 2>/dev/null
docker system df -v 2>/dev/null || true
If host disk or Docker.raw is full, prune build cache and unused images before touching named volumes. Named volumes can contain local databases or project state.Send the Docker command and failure mode.
We will reply with a short safe/review/reset triage path for your tool's error message or docs. No remote access needed.
Want a Docker Desktop failure policy for your dev team?
Start with a free policy-fit check. If one representative incident is enough, the $99 pilot turns it into a safe/review/do-not-touch policy your team can reuse in docs, onboarding, or CI support within 48 hours.
Timeout Every Docker Probe
Use a short command-level timeout around Docker probes. A parent app context is not enough if it has no deadline.
ctx, cancel := context.WithTimeout(parent, 5*time.Second)
defer cancel()
cmd := exec.CommandContext(ctx, "docker", "image", "inspect", image)Do Not Collapse These Errors
- Missing image: Docker answered, and the image is not present.
- Timeout: Docker CLI or daemon did not answer before the deadline.
- ENOSPC: host or Docker VM disk is full and writes may fail.
- Volume risk: the user has named volumes or local databases that should not be reset blindly.
User-Facing Recovery Order
- Show that Docker did not answer before the deadline.
- Ask for read-only disk evidence: host free space, Docker.raw size, and
docker system df -vif it answers. - Suggest pruning build cache/images before touching volumes.
- Warn that Docker Desktop reset removes local images, containers, and volumes.
- Offer a team policy when the same failure affects onboarding, CI, or multiple developer Macs.
Package this as a team policy
SafeDisk can turn one frozen-Docker incident into a short policy for developer onboarding, support docs, or CI runbooks.