OCR Service improvements: - Single worker ThreadPoolExecutor to prevent parallel OCR memory accumulation - Semaphore to ensure only one OCR operation at a time - Explicit numpy array cleanup after each OCR step - Forced garbage collection after every OCR request - Memory threshold check (2500MB) with pre-processing GC - Memory usage logging before/after processing Backend auto-restart: - Add run-with-restart.sh wrapper script for uvicorn - Auto-restart on crash (OOM, etc.) with max 10 restarts - Reset restart counter if process runs >60s (stable) - Graceful exit on SIGINT/SIGTERM - Update start-prod.sh and start-test.sh to use wrapper 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
52 lines
1.9 KiB
Bash
52 lines
1.9 KiB
Bash
#!/bin/bash
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# Wrapper script that auto-restarts uvicorn on crash
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# Usage: ./run-with-restart.sh [port] [log_file]
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PORT=${1:-8000}
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LOG_FILE=${2:-/tmp/unified_backend.log}
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MAX_RESTARTS=10
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RESTART_COUNT=0
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RESTART_DELAY=3
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echo "[Backend Runner] Starting uvicorn with auto-restart (max $MAX_RESTARTS restarts)" | tee -a "$LOG_FILE"
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echo "[Backend Runner] Port: $PORT, Log: $LOG_FILE" | tee -a "$LOG_FILE"
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while [ $RESTART_COUNT -lt $MAX_RESTARTS ]; do
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START_TIME=$(date +%s)
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echo "" | tee -a "$LOG_FILE"
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echo "[Backend Runner] $(date '+%Y-%m-%d %H:%M:%S') - Starting uvicorn (attempt $((RESTART_COUNT + 1))/$MAX_RESTARTS)..." | tee -a "$LOG_FILE"
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# Run uvicorn - it will exit on crash (OOM, etc.)
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uvicorn main:app --host 0.0.0.0 --port "$PORT" 2>&1 | tee -a "$LOG_FILE"
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EXIT_CODE=$?
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END_TIME=$(date +%s)
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RUNTIME=$((END_TIME - START_TIME))
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echo "[Backend Runner] $(date '+%Y-%m-%d %H:%M:%S') - uvicorn exited with code $EXIT_CODE after ${RUNTIME}s" | tee -a "$LOG_FILE"
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# If it ran for more than 60 seconds, reset restart counter (was stable)
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if [ $RUNTIME -gt 60 ]; then
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RESTART_COUNT=0
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echo "[Backend Runner] Process was stable (>${RUNTIME}s), resetting restart counter" | tee -a "$LOG_FILE"
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else
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RESTART_COUNT=$((RESTART_COUNT + 1))
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echo "[Backend Runner] Quick crash detected, restart count: $RESTART_COUNT/$MAX_RESTARTS" | tee -a "$LOG_FILE"
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fi
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# Exit if user sent SIGINT (Ctrl+C) or SIGTERM
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if [ $EXIT_CODE -eq 130 ] || [ $EXIT_CODE -eq 143 ]; then
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echo "[Backend Runner] Received termination signal, exiting..." | tee -a "$LOG_FILE"
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exit 0
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fi
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# Wait before restart
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if [ $RESTART_COUNT -lt $MAX_RESTARTS ]; then
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echo "[Backend Runner] Restarting in ${RESTART_DELAY}s..." | tee -a "$LOG_FILE"
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sleep $RESTART_DELAY
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fi
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done
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echo "[Backend Runner] Max restarts ($MAX_RESTARTS) reached. Giving up." | tee -a "$LOG_FILE"
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exit 1
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