152 lines
4.2 KiB
Bash
152 lines
4.2 KiB
Bash
#!/bin/bash
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# 优化版：监控 gunicorn 主进程及其子进程资源变化（表格+彩色输出）
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PROC_NAME="gunicorn"
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LOG_DIR="/data/sh/monitor/logs"
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LOG_FILE="$LOG_DIR/proc_monitor.log"
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DATA_FILE="$LOG_DIR/last_snapshot.txt"
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mkdir -p "$LOG_DIR"
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# 颜色定义
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RED='\033[1;31m'
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GREEN='\033[1;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[1;34m'
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NC='\033[0m' # 无色
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# 获取系统内存概况
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get_sys_mem() {
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free -h | awk '/Mem:/ {printf "系统内存概况：总 %s | 已用 %s | 空闲 %s | 可用 %s", $2, $3, $4, $7}'
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}
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# 获取时间
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format_time() {
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date "+%Y-%m-%d %H:%M:%S"
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}
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# 获取 gunicorn 主进程和子进程信息
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get_proc_info() {
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ps -eo pid,ppid,comm,%mem,%cpu,rss --no-headers | awk -v pname="$PROC_NAME" '$3 == pname {print $1, $2, $3, $4, $5, $6}'
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}
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# 保存当前状态快照
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save_snapshot() {
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get_proc_info | awk '{print $1,$3,$4,$5}' > "$DATA_FILE"
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}
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# 打印表格头
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print_table_header() {
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printf "%-10s %-12s %-12s %-12s %-12s\n" "PID" "进程名" "内存(Gi)" "CPU(%)" "备注"
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}
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# 打印分隔线
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print_line() {
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printf "%s\n" "---------------------------------------------------------------"
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}
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# 获取主进程 PID
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MAIN_PID=$(pgrep -f "$PROC_NAME" | head -n 1)
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if [ -z "$MAIN_PID" ]; then
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echo -e "${RED}未找到进程：$PROC_NAME${NC}"
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exit 1
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fi
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TIMESTAMP=$(format_time)
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echo "==== $TIMESTAMP ====" >> "$LOG_FILE"
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echo "$(get_sys_mem)" >> "$LOG_FILE"
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echo "主进程名：$PROC_NAME | PID: $MAIN_PID" >> "$LOG_FILE"
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# 写表格头
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print_table_header >> "$LOG_FILE"
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print_line >> "$LOG_FILE"
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# 获取当前进程信息
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CUR_INFO=$(get_proc_info)
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echo "$CUR_INFO" | while read -r pid ppid name mem cpu rss; do
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mem_gi=$(awk "BEGIN {printf \"%.2f\", $rss/1024/1024}") # KB -> Gi
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printf "%-10s %-12s %-12s %-12s\n" "$pid" "$name" "${mem_gi}Gi" "${cpu}%" >> "$LOG_FILE"
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done
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print_line >> "$LOG_FILE"
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# 若无上次记录，跳过变化分析
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if [ ! -f "$DATA_FILE" ]; then
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echo "暂无上次记录，跳过变化分析。" >> "$LOG_FILE"
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save_snapshot
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echo "==== $TIMESTAMP ====" >> "$LOG_FILE"
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exit 0
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fi
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# 对比分析部分
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declare -A CUR_MEM CUR_CPU PRE_MEM PRE_CPU
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while read -r pid name mem cpu; do
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CUR_MEM["$pid"]=$mem
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CUR_CPU["$pid"]=$cpu
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done < <(get_proc_info | awk '{print $1,$3,$4,$5}')
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while read -r pid name mem cpu; do
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PRE_MEM["$pid"]=$mem
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PRE_CPU["$pid"]=$cpu
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done < "$DATA_FILE"
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CUR_PIDS=$(printf "%s\n" "${!CUR_MEM[@]}" | sort)
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PRE_PIDS=$(printf "%s\n" "${!PRE_MEM[@]}" | sort)
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NEW_PIDS=$(comm -23 <(echo "$CUR_PIDS") <(echo "$PRE_PIDS"))
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OLD_PIDS=$(comm -13 <(echo "$CUR_PIDS") <(echo "$PRE_PIDS"))
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echo "分析变化：" >> "$LOG_FILE"
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# 新旧进程分析
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if [ -n "$NEW_PIDS" ]; then
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echo -e " ${GREEN}新出现的子进程:${NC}" >> "$LOG_FILE"
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for pid in $NEW_PIDS; do
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echo " $PROC_NAME (PID:$pid)" >> "$LOG_FILE"
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done
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fi
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if [ -n "$OLD_PIDS" ]; then
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echo -e " ${YELLOW}已消失的子进程:${NC}" >> "$LOG_FILE"
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for pid in $OLD_PIDS; do
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echo " $PROC_NAME (PID:$pid)" >> "$LOG_FILE"
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done
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fi
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# 资源变化分析
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echo " 子进程资源变化：" >> "$LOG_FILE"
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for pid in $CUR_PIDS; do
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if [ -n "${PRE_MEM[$pid]}" ]; then
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cpu_diff=$(awk "BEGIN {printf \"%.1f\", ${CUR_CPU[$pid]} - ${PRE_CPU[$pid]}}")
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mem_diff=$(awk "BEGIN {printf \"%.2f\", ${CUR_MEM[$pid]} - ${PRE_MEM[$pid]}}")
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color_start=""
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color_end="$NC"
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if (( $(echo "$mem_diff > 0.2" | bc -l) )); then
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color_start=$RED
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elif (( $(echo "$mem_diff < -0.2" | bc -l) )); then
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color_start=$GREEN
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else
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color_start=$YELLOW
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fi
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echo -e " ${color_start}$PROC_NAME (PID:$pid): CPU变化 ${cpu_diff}% | 内存变化 ${mem_diff}%${color_end}" >> "$LOG_FILE"
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fi
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done
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# 当前最高占用进程
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top_cpu_pid=$(ps -eo pid,comm,%cpu --no-headers | grep "$PROC_NAME" | sort -k3 -nr | head -n 1 | awk '{print $1}')
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top_mem_pid=$(ps -eo pid,comm,%mem --no-headers | grep "$PROC_NAME" | sort -k3 -nr | head -n 1 | awk '{print $1}')
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if [ -n "$top_cpu_pid" ]; then
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echo -e " ${BLUE}当前占用最高CPU的进程:${NC} $PROC_NAME (PID:$top_cpu_pid)" >> "$LOG_FILE"
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fi
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if [ -n "$top_mem_pid" ]; then
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echo -e " ${BLUE}当前占用最高内存的进程:${NC} $PROC_NAME (PID:$top_mem_pid)" >> "$LOG_FILE"
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fi
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save_snapshot
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echo "==== $TIMESTAMP ====" >> "$LOG_FILE"
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