本文介绍了什么是的httpd<&倒闭GT ;?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
32537阿帕奇16 0 8742415米7324 2.3英里0.3 0:00.52的httpd
3302 mysql的15 0156米41米4756小号1.3 0.7 10:50.91的mysqld
489 apache的16 0 8701614米6692小号0.7 0.2 0:00.27的httpd
990 apache的15 0 0 0 0ž0.7 0.0 0:00.12的httpd<&倒闭GT;
665 apache的15 0 8699213米5644小号0.3 0.2 0:00.20的httpd
32218阿帕奇15 0 8735614米6344小号0.3 0.2 0:00.53的httpd
1根15 0 2160 640 556秒0.0 0.0 0:01.18 INIT
从顶
,还有偶尔的的httpd<&倒闭GT;
显示出来。它有什么作用?
我发现Web服务器有时不会(在用户的要求印刷PDF)响应 FPDF
。这是否与?
更新,与负载信息:
顶 - 11时55分59秒了17:30 6用户,平均负载:0.53,0.47,0.80
任务:322总,运行1,320睡觉,0停止,1僵尸
CPU(S):0.7%,美国0.2%SY,0.0%的镍,95.1%的id,3.9%WA,0.0%喜,0.1%的硅,0.0%ST
纪念品:6219412k总,5944068k使用,275344k自由,21024k缓冲区
交换:5140792k总共使用96K,5140696k免费,5270708k缓存 PID USER PR NI VIRT RES SHR S%CPU%MEM TIME + COMMAND
1951年16阿帕奇0 0 0 0ž0.9 0.0 0:00.33的httpd<&倒闭GT;
2267阿帕奇15 0 8699213米5876小号0.9 0.2 0:00.22的httpd
3302 mysql的15 0156米41米4756小号0.9 0.7 11:43.72的mysqld
2220阿帕奇15 0 8720414米6496小号0.6 0.2 0:00.28的httpd
2340阿帕奇15 0 8782813米5588小号0.6 0.2 0:00.22的httpd
2341阿帕奇17 0 8823614米5564小号0.6 0.2 0:00.15的httpd
842 apache的16 0 8743215米7180小号0.3 0.2 0:00.81的httpd
2225阿帕奇18 0 8823614米5560小号0.3 0.2 0:00.17的httpd
2401阿帕奇15 0 8691612米5344小号0.3 0.2 0:00.11的httpd
1根24 0 2160 640 556秒0.0 0.0 0:01.18 INIT
解决方案
一个倒闭的进程已退出的过程,但其母公司尚未等着它来阅读它的退出状态,留在进程表中的条目。也称为僵尸进程。请参见维基百科的更多信息。
32537 apache 16 0 87424 15m 7324 S 2.3 0.3 0:00.52 httpd
3302 mysql 15 0 156m 41m 4756 S 1.3 0.7 10:50.91 mysqld
489 apache 16 0 87016 14m 6692 S 0.7 0.2 0:00.27 httpd
990 apache 15 0 0 0 0 Z 0.7 0.0 0:00.12 httpd <defunct>
665 apache 15 0 86992 13m 5644 S 0.3 0.2 0:00.20 httpd
32218 apache 15 0 87356 14m 6344 S 0.3 0.2 0:00.53 httpd
1 root 15 0 2160 640 556 S 0.0 0.0 0:01.18 init
From top
, there is an occasional httpd <defunct>
showing up. What does it do?
I found that the web server sometimes does not response to FPDF
(print PDF at user's request). Is it related?
UPDATE, with loading information:
top - 11:55:59 up 17:30, 6 users, load average: 0.53, 0.47, 0.80
Tasks: 322 total, 1 running, 320 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.7%us, 0.2%sy, 0.0%ni, 95.1%id, 3.9%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 6219412k total, 5944068k used, 275344k free, 21024k buffers
Swap: 5140792k total, 96k used, 5140696k free, 5270708k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1951 apache 16 0 0 0 0 Z 0.9 0.0 0:00.33 httpd <defunct>
2267 apache 15 0 86992 13m 5876 S 0.9 0.2 0:00.22 httpd
3302 mysql 15 0 156m 41m 4756 S 0.9 0.7 11:43.72 mysqld
2220 apache 15 0 87204 14m 6496 S 0.6 0.2 0:00.28 httpd
2340 apache 15 0 87828 13m 5588 S 0.6 0.2 0:00.22 httpd
2341 apache 17 0 88236 14m 5564 S 0.6 0.2 0:00.15 httpd
842 apache 16 0 87432 15m 7180 S 0.3 0.2 0:00.81 httpd
2225 apache 18 0 88236 14m 5560 S 0.3 0.2 0:00.17 httpd
2401 apache 15 0 86916 12m 5344 S 0.3 0.2 0:00.11 httpd
1 root 24 0 2160 640 556 S 0.0 0.0 0:01.18 init
解决方案
A defunct process is a process that has exited but whose parent has not yet waited on it to read its exit status, leaving an entry in the process table. Also known as a zombie process. See the Wikipedia article for more information.
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