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fix: add --n-jobs-per-worker 10 to langgraph dev command in Docker (#1623)

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`langgraph dev` defaults `n_jobs_per_worker` to 1 when the flag is not
explicitly passed (see langgraph_api/cli.py), even though the
`N_JOBS_PER_WORKER` env-var default is 10.

This causes the LangGraph server to run with a single background worker,
meaning all conversation runs are processed serially. When one run is
busy (e.g. summarization or long tool-calling chains), all other threads
are blocked until it finishes.

Add `--n-jobs-per-worker 10` to both production and dev Docker Compose
files to match the intended default concurrency.
This commit is contained in:
ZHANG Ning 2026-03-30 19:50:02 +08:00 committed by GitHub
parent 9a557751d6
commit 0f1b023a2a
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2 changed files with 2 additions and 2 deletions
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2
docker/docker-compose-dev.yaml
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@ -170,7 +170,7 @@ services:
APT_MIRROR: ${APT_MIRROR:-}
UV_IMAGE: ${UV_IMAGE:-ghcr.io/astral-sh/uv:0.7.20}
container_name: deer-flow-langgraph
command: sh -c "cd backend && uv run langgraph dev --no-browser --allow-blocking --host 0.0.0.0 --port 2024 > /app/logs/langgraph.log 2>&1"
command: sh -c "cd backend && uv run langgraph dev --no-browser --allow-blocking --host 0.0.0.0 --port 2024 --n-jobs-per-worker 10 > /app/logs/langgraph.log 2>&1"
volumes:
- ../backend/:/app/backend/
# Preserve the .venv built during Docker image build — mounting the full backend/

2
docker/docker-compose.yaml
View File

@ -115,7 +115,7 @@ services:
APT_MIRROR: ${APT_MIRROR:-}
UV_IMAGE: ${UV_IMAGE:-ghcr.io/astral-sh/uv:0.7.20}
container_name: deer-flow-langgraph
command: sh -c "cd /app/backend && uv run langgraph dev --no-browser --allow-blocking --no-reload --host 0.0.0.0 --port 2024"
command: sh -c "cd /app/backend && uv run langgraph dev --no-browser --allow-blocking --no-reload --host 0.0.0.0 --port 2024 --n-jobs-per-worker 10"
volumes:
- ${DEER_FLOW_CONFIG_PATH}:/app/config.yaml:ro
- ${DEER_FLOW_EXTENSIONS_CONFIG_PATH}:/app/extensions_config.json:ro