{"id":17441,"date":"2025-04-18T23:58:14","date_gmt":"2025-04-18T15:58:14","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/17441.html"},"modified":"2025-04-18T23:58:14","modified_gmt":"2025-04-18T15:58:14","slug":"%e5%a6%82%e4%bd%95%e5%88%86%e6%9e%90%e5%92%8c%e8%a7%a3%e5%86%b3%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84%e5%83%b5%e5%b0%b8%e8%bf%9b%e7%a8%8b%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/17441.html","title":{"rendered":"\u5982\u4f55\u5206\u6790\u548c\u89e3\u51b3\u670d\u52a1\u5668\u7684\u50f5\u5c38\u8fdb\u7a0b\u95ee\u9898"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418155813-680276955b9e7.jpg\" \/><\/p>\n<p>### \u5982\u4f55\u5206\u6790\u548c\u89e3\u51b3\u670d\u52a1\u5668\u7684\u50f5\u5c38\u8fdb\u7a0b\u95ee\u9898<\/p>\n<p>#### **\u4e00\u3001\u50f5\u5c38\u8fdb\u7a0b\u7684\u5b9a\u4e49\u4e0e\u5f71\u54cd** **\u50f5\u5c38\u8fdb\u7a0b&#xff08;Zombie Process&#xff09;** \u662f\u5df2\u7ec8\u6b62\u4f46\u672a\u88ab\u7236\u8fdb\u7a0b\u56de\u6536\u8d44\u6e90\u7684\u8fdb\u7a0b\u3002\u5176\u7279\u70b9&#xff1a; &#8211; **\u72b6\u6001\u6807\u8bc6**&#xff1a;\u5728\u8fdb\u7a0b\u5217\u8868&#xff08;\u5982 &#096;ps&#096; \u6216 &#096;top&#096;&#xff09;\u4e2d\u6807\u8bb0\u4e3a &#096;Z&#096; \u72b6\u6001\u3002 &#8211; **\u8d44\u6e90\u5360\u7528**&#xff1a;\u4e0d\u5360\u7528\u5185\u5b58\u6216CPU&#xff0c;\u4f46\u5360\u7528\u8fdb\u7a0b\u8868\u6761\u76ee&#xff08;PID&#xff09;\u3002 &#8211; **\u6f5c\u5728\u98ce\u9669**&#xff1a;\u5927\u91cf\u50f5\u5c38\u8fdb\u7a0b\u53ef\u80fd\u5bfc\u81f4\u8fdb\u7a0b\u8868\u8017\u5c3d&#xff0c;\u65e0\u6cd5\u521b\u5efa\u65b0\u8fdb\u7a0b\u3002<\/p>\n<p>&#8212;<\/p>\n<p>#### **\u4e8c\u3001\u50f5\u5c38\u8fdb\u7a0b\u7684\u68c0\u6d4b\u65b9\u6cd5** ##### **1. \u5feb\u901f\u8bc6\u522b\u50f5\u5c38\u8fdb\u7a0b** &#8211; **\u4f7f\u7528 &#096;ps&#096; \u547d\u4ee4**&#xff1a; \u00a0 &#096;&#096;&#096;bash \u00a0 ps aux | grep &#039;Z&#039; \u00a0 # \u8f93\u51fa\u793a\u4f8b&#xff1a; \u00a0 # USER \u00a0 PID \u00a0%CPU %MEM \u00a0 \u00a0VSZ \u00a0 RSS TTY \u00a0 STAT START \u00a0 TIME COMMAND \u00a0 # root \u00a0 123 \u00a0 0.0 \u00a00.0 \u00a0 \u00a0 \u00a00 \u00a0 \u00a0 0 ? \u00a0 \u00a0 Z \u00a0 \u00a010:00 \u00a0 0:00 [sh] &lt;defunct&gt; \u00a0 &#096;&#096;&#096; \u00a0 &#8211; &#096;STAT&#096; \u5217\u4e3a &#096;Z&#096; \u8868\u793a\u50f5\u5c38\u8fdb\u7a0b\u3002<\/p>\n<p>&#8211; **\u901a\u8fc7 &#096;top&#096; \u547d\u4ee4**&#xff1a; \u00a0 &#096;&#096;&#096;bash \u00a0 top \u00a0 # \u67e5\u770b Tasks \u884c\u4e2d\u7684 &#096;zombie&#096; \u6570\u91cf&#xff1a; \u00a0 # Tasks: 200 total, 1 running, 199 sleeping, 0 stopped, 3 zombie \u00a0 &#096;&#096;&#096;<\/p>\n<p>##### **2. \u5b9a\u4f4d\u50f5\u5c38\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b** &#096;&#096;&#096;bash # \u83b7\u53d6\u50f5\u5c38\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b PID ps -o ppid&#061; -p &lt;\u50f5\u5c38\u8fdb\u7a0bPID&gt;<\/p>\n<p># \u793a\u4f8b&#xff1a;\u5047\u8bbe\u50f5\u5c38\u8fdb\u7a0b PID \u4e3a 123 ps -o ppid&#061; -p 123 # \u8f93\u51fa&#xff1a;456&#xff08;\u7236\u8fdb\u7a0b PID \u4e3a 456&#xff09;<\/p>\n<p># \u67e5\u770b\u7236\u8fdb\u7a0b\u8be6\u7ec6\u4fe1\u606f ps -p 456 -o pid,comm,cmd &#096;&#096;&#096;<\/p>\n<p>&#8212;<\/p>\n<p>#### **\u4e09\u3001\u50f5\u5c38\u8fdb\u7a0b\u7684\u6210\u56e0\u5206\u6790** \u50f5\u5c38\u8fdb\u7a0b\u7684\u4ea7\u751f\u901a\u5e38\u7531\u4ee5\u4e0b\u539f\u56e0\u5bfc\u81f4&#xff1a; 1. **\u7236\u8fdb\u7a0b\u672a\u6b63\u786e\u56de\u6536\u5b50\u8fdb\u7a0b** \u00a0 \u00a0 \u00a0&#8211; \u7236\u8fdb\u7a0b\u672a\u8c03\u7528 &#096;wait()&#096; \u6216 &#096;waitpid()&#096; \u51fd\u6570\u3002 \u00a0 \u00a0&#8211; \u7236\u8fdb\u7a0b\u5ffd\u7565 &#096;SIGCHLD&#096; \u4fe1\u53f7&#xff08;\u9ed8\u8ba4\u884c\u4e3a\u662f\u4e0d\u56de\u6536\u5b50\u8fdb\u7a0b&#xff09;\u3002<\/p>\n<p>2. **\u7236\u8fdb\u7a0b\u5f02\u5e38\u7ec8\u6b62** \u00a0 \u00a0 \u00a0&#8211; \u5b50\u8fdb\u7a0b\u7ec8\u6b62\u540e&#xff0c;\u7236\u8fdb\u7a0b\u5d29\u6e83\u6216\u88ab\u6740\u6b7b&#xff0c;\u5bfc\u81f4\u65e0\u4eba\u56de\u6536\u5b50\u8fdb\u7a0b&#xff08;\u6b64\u65f6\u7531 &#096;init&#096; \u8fdb\u7a0b\u63a5\u7ba1\u6e05\u7406&#xff09;\u3002<\/p>\n<p>3. **\u7f16\u7a0b\u903b\u8f91\u7f3a\u9677** \u00a0 \u00a0 \u00a0&#8211; \u591a\u8fdb\u7a0b\u7a0b\u5e8f\u4e2d\u672a\u6b63\u786e\u5904\u7406\u5b50\u8fdb\u7a0b\u9000\u51fa\u3002<\/p>\n<p>&#8212;<\/p>\n<p>#### **\u56db\u3001\u50f5\u5c38\u8fdb\u7a0b\u7684\u89e3\u51b3\u65b9\u6848** ##### **\u65b9\u68481&#xff1a;\u7ec8\u6b62\u7236\u8fdb\u7a0b&#xff08;\u63a8\u8350&#xff09;** &#8211; **\u539f\u7406**&#xff1a;\u7236\u8fdb\u7a0b\u7ec8\u6b62\u540e&#xff0c;\u50f5\u5c38\u8fdb\u7a0b\u4f1a\u88ab &#096;init&#096; \u8fdb\u7a0b&#xff08;PID 1&#xff09;\u63a5\u7ba1\u5e76\u81ea\u52a8\u6e05\u7406\u3002 &#8211; **\u64cd\u4f5c\u6b65\u9aa4**&#xff1a; \u00a0 &#096;&#096;&#096;bash \u00a0 # 1. \u627e\u5230\u7236\u8fdb\u7a0b PID \u00a0 ps -o ppid&#061; -p &lt;\u50f5\u5c38\u8fdb\u7a0bPID&gt;<\/p>\n<p>\u00a0 # 2. \u7ec8\u6b62\u7236\u8fdb\u7a0b&#xff08;\u9700\u8c28\u614e&#xff0c;\u786e\u8ba4\u7236\u8fdb\u7a0b\u53ef\u5b89\u5168\u7ec8\u6b62&#xff09; \u00a0 kill -9 &lt;\u7236\u8fdb\u7a0bPID&gt;<\/p>\n<p>\u00a0 # 3. \u9a8c\u8bc1\u50f5\u5c38\u8fdb\u7a0b\u662f\u5426\u6d88\u5931 \u00a0 ps aux | grep &#039;Z&#039; \u00a0 &#096;&#096;&#096;<\/p>\n<p>##### **\u65b9\u68482&#xff1a;\u624b\u52a8\u53d1\u9001 SIGCHLD \u4fe1\u53f7** &#8211; **\u9002\u7528\u573a\u666f**&#xff1a;\u7236\u8fdb\u7a0b\u4ecd\u5b58\u6d3b\u4f46\u672a\u6b63\u786e\u5904\u7406\u5b50\u8fdb\u7a0b\u9000\u51fa\u3002 &#8211; **\u64cd\u4f5c\u6b65\u9aa4**&#xff1a; \u00a0 &#096;&#096;&#096;bash \u00a0 # \u5411\u7236\u8fdb\u7a0b\u53d1\u9001 SIGCHLD \u4fe1\u53f7&#xff0c;\u89e6\u53d1\u5176\u56de\u6536\u5b50\u8fdb\u7a0b \u00a0 kill -SIGCHLD &lt;\u7236\u8fdb\u7a0bPID&gt; \u00a0 &#096;&#096;&#096;<\/p>\n<p>##### **\u65b9\u68483&#xff1a;\u76f4\u63a5\u6e05\u7406\u50f5\u5c38\u8fdb\u7a0b&#xff08;\u4e0d\u63a8\u8350&#xff09;** &#8211; **\u6ce8\u610f**&#xff1a;\u50f5\u5c38\u8fdb\u7a0b\u65e0\u6cd5\u901a\u8fc7 &#096;kill&#096; \u76f4\u63a5\u7ec8\u6b62&#xff0c;\u56e0\u5176\u5df2\u5904\u4e8e\u7ec8\u6b62\u72b6\u6001\u3002 &#8211; **\u66ff\u4ee3\u65b9\u6cd5**&#xff1a;\u82e5\u7236\u8fdb\u7a0b\u65e0\u6cd5\u7ec8\u6b62&#xff0c;\u91cd\u542f\u7cfb\u7edf\u6216\u8054\u7cfb\u5f00\u53d1\u4eba\u5458\u4fee\u590d\u7a0b\u5e8f\u903b\u8f91\u3002<\/p>\n<p>&#8212;<\/p>\n<p>#### **\u4e94\u3001\u9884\u9632\u50f5\u5c38\u8fdb\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5** ##### **1. \u7f16\u7a0b\u5c42\u9762** &#8211; **\u6b63\u786e\u5904\u7406\u5b50\u8fdb\u7a0b\u9000\u51fa**&#xff1a; \u00a0 &#8211; \u5728\u7236\u8fdb\u7a0b\u4e2d\u8c03\u7528 &#096;wait()&#096; \u6216 &#096;waitpid()&#096;\u3002 \u00a0 &#8211; \u6355\u83b7 &#096;SIGCHLD&#096; \u4fe1\u53f7\u5e76\u56de\u6536\u5b50\u8fdb\u7a0b&#xff08;\u63a8\u8350\u65b9\u5f0f&#xff09;&#xff1a; \u00a0 \u00a0 &#096;&#096;&#096;c \u00a0 \u00a0 #include &lt;signal.h&gt; \u00a0 \u00a0 #include &lt;sys\/wait.h&gt;<\/p>\n<p>\u00a0 \u00a0 void sigchld_handler(int sig) { \u00a0 \u00a0 \u00a0 \u00a0 while (waitpid(-1, NULL, WNOHANG) &gt; 0); \u00a0 \u00a0 }<\/p>\n<p>\u00a0 \u00a0 int main() { \u00a0 \u00a0 \u00a0 \u00a0 signal(SIGCHLD, sigchld_handler); \u00a0 \u00a0 \u00a0 \u00a0 \/\/ \u521b\u5efa\u5b50\u8fdb\u7a0b&#8230; \u00a0 \u00a0 } \u00a0 \u00a0 &#096;&#096;&#096;<\/p>\n<p>##### **2. \u7cfb\u7edf\u7ba1\u7406\u5c42\u9762** &#8211; **\u76d1\u63a7\u4e0e\u544a\u8b66**&#xff1a; \u00a0 &#096;&#096;&#096;bash \u00a0 # \u5b9a\u671f\u68c0\u67e5\u50f5\u5c38\u8fdb\u7a0b\u6570\u91cf \u00a0 zombie_count&#061;$(ps aux | grep &#039;Z&#039; | grep -v grep | wc -l) \u00a0 if [ $zombie_count -gt 0 ]; then \u00a0 \u00a0 echo &#034;\u53d1\u73b0 $zombie_count \u4e2a\u50f5\u5c38\u8fdb\u7a0b&#xff01;&#034; \u00a0 fi \u00a0 &#096;&#096;&#096; \u00a0 &#8211; \u96c6\u6210\u5230\u76d1\u63a7\u5de5\u5177&#xff08;\u5982 Zabbix\u3001Prometheus&#xff09;\u4e2d\u3002<\/p>\n<p>&#8211; **\u914d\u7f6e &#096;init&#096; \u81ea\u52a8\u56de\u6536**&#xff1a; \u00a0 &#8211; \u5bf9\u5df2\u77e5\u4f1a\u751f\u6210\u50f5\u5c38\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b&#xff0c;\u53ef\u4fee\u6539\u5176\u4ee3\u7801\u6216\u914d\u7f6e&#xff0c;\u4f7f\u5176\u9000\u51fa\u540e\u7531 &#096;init&#096; \u63a5\u7ba1\u3002<\/p>\n<p>##### **3. \u5bb9\u5668\u5316\u73af\u5883** &#8211; **\u5728 Docker\/K8s \u4e2d\u9884\u9632**&#xff1a; \u00a0 &#8211; \u786e\u4fdd\u5bb9\u5668\u5185\u4e3b\u8fdb\u7a0b\u6b63\u786e\u5904\u7406\u5b50\u8fdb\u7a0b\u3002 \u00a0 &#8211; \u4f7f\u7528 &#096;&#8211;init&#096; \u53c2\u6570\u542f\u52a8\u5bb9\u5668&#xff0c;\u6ce8\u5165\u8f7b\u91cf\u7ea7 &#096;init&#096; \u7cfb\u7edf&#xff08;\u5982 tini&#xff09;&#xff1a; \u00a0 \u00a0 &#096;&#096;&#096;bash \u00a0 \u00a0 docker run &#8211;init -d my_image \u00a0 \u00a0 &#096;&#096;&#096;<\/p>\n<p>&#8212;<\/p>\n<p>#### **\u516d\u3001\u5178\u578b\u6848\u4f8b\u5206\u6790** ##### **\u6848\u4f8b1&#xff1a;Web \u670d\u52a1\u5668\u9891\u7e41\u4ea7\u751f\u50f5\u5c38\u8fdb\u7a0b** &#8211; **\u73b0\u8c61**&#xff1a;Nginx \u670d\u52a1\u4ea7\u751f\u5927\u91cf\u50f5\u5c38\u8fdb\u7a0b&#xff0c;&#096;ps&#096; \u663e\u793a\u591a\u4e2a &#096;nginx: worker process is shutting down&#096; \u7684 &#096;Z&#096; \u72b6\u6001\u8fdb\u7a0b\u3002 &#8211; **\u5206\u6790**&#xff1a;Nginx \u7236\u8fdb\u7a0b\u672a\u53ca\u65f6\u56de\u6536\u65e7\u7684\u5de5\u4f5c\u8fdb\u7a0b\u3002 &#8211; **\u89e3\u51b3**&#xff1a; \u00a0 &#096;&#096;&#096;bash \u00a0 # 1. \u5411 Nginx \u4e3b\u8fdb\u7a0b\u53d1\u9001 SIGCHLD \u4fe1\u53f7 \u00a0 kill -SIGCHLD $(cat \/var\/run\/nginx.pid)<\/p>\n<p>\u00a0 # 2. \u4f18\u5316 Nginx \u914d\u7f6e&#xff0c;\u51cf\u5c11 worker \u8fdb\u7a0b\u9891\u7e41\u91cd\u542f \u00a0 &#096;&#096;&#096;<\/p>\n<p>##### **\u6848\u4f8b2&#xff1a;\u81ea\u5b9a\u4e49\u811a\u672c\u672a\u5904\u7406\u5b50\u8fdb\u7a0b** &#8211; **\u73b0\u8c61**&#xff1a;\u5b9a\u65f6\u4efb\u52a1\u811a\u672c\u8c03\u7528 &#096;&amp;&#096; \u540e\u53f0\u8fd0\u884c\u5b50\u8fdb\u7a0b&#xff0c;\u4f46\u672a\u4f7f\u7528 &#096;wait&#096;\u3002 &#8211; **\u4fee\u590d**&#xff1a; \u00a0 &#096;&#096;&#096;bash \u00a0 # \u539f\u811a\u672c \u00a0 for i in {1..10}; do \u00a0 \u00a0 some_command &amp; \u00a0 done<\/p>\n<p>\u00a0 # \u4fee\u6539\u540e\u811a\u672c \u00a0 for i in {1..10}; do \u00a0 \u00a0 some_command &amp; \u00a0 done \u00a0 wait \u00a0# \u7b49\u5f85\u6240\u6709\u5b50\u8fdb\u7a0b\u9000\u51fa \u00a0 &#096;&#096;&#096;<\/p>\n<p>&#8212;<\/p>\n<p>#### **\u4e03\u3001\u603b\u7ed3** \u50f5\u5c38\u8fdb\u7a0b\u672c\u8eab\u5bf9\u7cfb\u7edf\u8d44\u6e90\u5f71\u54cd\u8f83\u5c0f&#xff0c;\u4f46\u957f\u671f\u79ef\u7d2f\u53ef\u80fd\u5f15\u53d1\u8fdb\u7a0b\u8868\u8017\u5c3d\u98ce\u9669\u3002\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u89e3\u51b3&#xff1a; 1. **\u68c0\u6d4b**&#xff1a;\u4f7f\u7528 &#096;ps&#096; \u6216 &#096;top&#096; \u5b9a\u4f4d\u50f5\u5c38\u8fdb\u7a0b\u53ca\u5176\u7236\u8fdb\u7a0b\u3002 2. **\u6e05\u7406**&#xff1a;\u7ec8\u6b62\u7236\u8fdb\u7a0b\u6216\u53d1\u9001 &#096;SIGCHLD&#096; \u4fe1\u53f7\u3002 3. 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