80 lines
3.2 KiB
Bash
80 lines
3.2 KiB
Bash
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#!/usr/bin/env bash
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# Hot-adjust Apache MPM Event settings and graceful reload.
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# Usage: tune-mpm.sh [--max-workers N] [--server-limit N] [--start-servers N]
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# [--min-spare-threads N] [--max-spare-threads N]
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# [--max-connections-per-child N]
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set -euo pipefail
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# Read current values from the config as defaults
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CONFIG_FILE="/etc/httpd/conf.d/mpm-tuning.conf"
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if [ ! -f "$CONFIG_FILE" ]; then
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echo "Error: $CONFIG_FILE not found. Run detect-memory.sh first."
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exit 1
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fi
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# Parse current values from config
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current_start=$(grep -oP 'StartServers\s+\K\d+' "$CONFIG_FILE" 2>/dev/null || echo "1")
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current_min_spare=$(grep -oP 'MinSpareThreads\s+\K\d+' "$CONFIG_FILE" 2>/dev/null || echo "5")
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current_max_spare=$(grep -oP 'MaxSpareThreads\s+\K\d+' "$CONFIG_FILE" 2>/dev/null || echo "15")
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current_max_workers=$(grep -oP 'MaxRequestWorkers\s+\K\d+' "$CONFIG_FILE" 2>/dev/null || echo "50")
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current_server_limit=$(grep -oP 'ServerLimit\s+\K\d+' "$CONFIG_FILE" 2>/dev/null || echo "2")
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current_max_conn=$(grep -oP 'MaxConnectionsPerChild\s+\K\d+' "$CONFIG_FILE" 2>/dev/null || echo "3000")
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# Parse arguments
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START_SERVERS=$current_start
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MIN_SPARE_THREADS=$current_min_spare
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MAX_SPARE_THREADS=$current_max_spare
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MAX_REQUEST_WORKERS=$current_max_workers
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SERVER_LIMIT=$current_server_limit
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MAX_CONNECTIONS_PER_CHILD=$current_max_conn
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while [[ $# -gt 0 ]]; do
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case $1 in
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--max-workers) MAX_REQUEST_WORKERS="$2"; shift 2 ;;
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--server-limit) SERVER_LIMIT="$2"; shift 2 ;;
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--start-servers) START_SERVERS="$2"; shift 2 ;;
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--min-spare-threads) MIN_SPARE_THREADS="$2"; shift 2 ;;
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--max-spare-threads) MAX_SPARE_THREADS="$2"; shift 2 ;;
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--max-connections-per-child) MAX_CONNECTIONS_PER_CHILD="$2"; shift 2 ;;
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--help|-h)
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echo "Usage: $0 [--max-workers N] [--server-limit N] [--start-servers N]"
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echo " [--min-spare-threads N] [--max-spare-threads N]"
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echo " [--max-connections-per-child N]"
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echo ""
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echo "Current values:"
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echo " StartServers: $current_start"
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echo " MinSpareThreads: $current_min_spare"
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echo " MaxSpareThreads: $current_max_spare"
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echo " MaxRequestWorkers: $current_max_workers"
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echo " ServerLimit: $current_server_limit"
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echo " MaxConnectionsPerChild: $current_max_conn"
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exit 0
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;;
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*) echo "Unknown option: $1"; exit 1 ;;
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esac
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done
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# Write updated config
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cat <<EOF > "$CONFIG_FILE"
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<IfModule mpm_event_module>
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StartServers ${START_SERVERS}
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MinSpareThreads ${MIN_SPARE_THREADS}
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MaxSpareThreads ${MAX_SPARE_THREADS}
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ThreadLimit 64
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ThreadsPerChild 25
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MaxRequestWorkers ${MAX_REQUEST_WORKERS}
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ServerLimit ${SERVER_LIMIT}
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MaxConnectionsPerChild ${MAX_CONNECTIONS_PER_CHILD}
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</IfModule>
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EOF
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echo "MPM config updated:"
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echo " StartServers=$START_SERVERS ServerLimit=$SERVER_LIMIT MaxRequestWorkers=$MAX_REQUEST_WORKERS"
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echo " MinSpareThreads=$MIN_SPARE_THREADS MaxSpareThreads=$MAX_SPARE_THREADS MaxConnectionsPerChild=$MAX_CONNECTIONS_PER_CHILD"
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# Graceful reload
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/usr/sbin/httpd -k graceful
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echo "Apache graceful reload triggered."
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