我们正在使用 php5-fpm 和 nginx。
# nginx -v
nginx版本：nginx/1.1.19
*
# php -v
带有 Suhosin-Patch (cli) 的 PHP 5.3.27-1~dotdeb.0（构建时间：2013 年 7 月 25 日 19:30:39）
版权所有 (c) 1997-2013 PHP 集团
Zend Engine v2.3.0，版权所有 (c) 1998-2013 Zend Technologies
使用 Xdebug v2.2.3，版权所有 (c) 2002-2013，作者 Derick Rethans
*
得到以下错误，
2013/08/21 20:00:20 [错误] 12740#0: *46 recv() 在从上游读取响应标头时失败（104：对等方重置连接），客户端：172.17.7.12，服务器：fe.test。本地，请求：“GET /search?gender=female&ageFrom=20&ageTo=32&religionId=&casteId=&countryId=&heightFrom=&heightTo=&profileImageStatus=%28y+p%29&search=Search HTTP/1.1”，上游：“fastcgi://unix:/ var/run/php5-fpm.sock：”，主机：“fe.test.local”，引用者：“http://fe.test.local/
PHP5-FPM 配置，
# grep ^[^\;] /etc/php5/fpm/php-fpm.conf
[全球的]
pid = /var/run/php5-fpm.pid
error_log = /var/log/php5-fpm.log
log_level = 通知
进程控制超时 = 30
包括=/etc/php5/fpm/pool.d/*.conf
# grep ^[^\;] /etc/php5/fpm/pool.d/www.conf
[万维网]
听 = /var/run/php5-fpm.sock
听积压 = -1
用户 = www-数据
组 = www-数据
下午 = 动态
pm.max_children = 10
pm.start_servers = 4
pm.min_spare_servers = 2
pm.max_spare_servers = 6
rlimit_files = 131072
rlimit_core = 无限制
chdir = /
Nginx fascgi 配置部分
位置 ~ \.php$
{
fastcgi_index index.php；
包括 fastcgi_params；
fastcgi_connect_timeout 120；
fastcgi_send_timeout 600；
fastcgi_read_timeout 600；
fastcgi_buffers 8 256k；
fastcgi_buffer_size 256k；
fastcgi_busy_buffers_size 256k；
fastcgi_temp_file_write_size 256k；
client_max_body_size 20M；
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
#fastcgi_pass 127.0.0.1:9000;
fastcgi_pass unix:/var/run/php5-fpm.sock;
}
# strace -f -s 8000 -p 12761
附加进程 12761 - 中断退出
epoll_wait(9, {}, 1, 944) = 0
epoll_wait(9, {}, 1, 1000) = 0
epoll_wait(9, {}, 1, 1000) = 0
epoll_wait(9, 269f530, 1, 1000) = -1 EINTR（中断的系统调用）
--- SIGCHLD（孩子退出）@ 0 (0) ---
写（6，“C”，1）= 1
rt_sigreturn(0x6) = -1 EINTR（中断的系统调用）
epoll_wait(9, {{EPOLLIN, {u32=15427040, u64=15427040}}}, 1, 122) = 1
读取（4，“C”，1）= 1
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 127}], WNOHANG|WSTOPPED, NULL) = 12826
写（3，“[2013 年 8 月 21 日 19:33:37] 警告：[池 www] 孩子 12826 在 275.844033 秒后以代码 127 退出\n”，112）= 112
克隆（附加进程 12832（等待父进程）
进程 12832 恢复（父进程 12761 就绪）
child_stack=0，标志=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD，child_tidptr=0x7fd7a31cfa10) = 12832
[pid 12832] set_robust_list(0x7fd7a31cfa20, 0x18) = 0
[pid 12832] dup2(1, 2) = 2
[pid 12832] 关闭（3）= 0
[pid 12832] dup2(7, 0) = 0
[pid 12832] geteuid() = 0
[pid 12832] setrlimit(RLIMIT_NOFILE, {rlim_cur=128*1024, rlim_max=128*1024}) = 0
[pid 12832] setrlimit(RLIMIT_CORE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
[pid 12832] chdir("/") = 0
[pid 12832] setgid(33) = 0
[pid 12832] open("/proc/sys/kernel/ngroups_max", O_RDONLY) = 3
[pid 12832] 读取（3，“65536\n”，31）= 6
[pid 12832] 关闭（3）= 0
[pid 12832] open("/etc/group", O_RDONLY|O_CLOEXEC) = 3
[pid 12832] lseek(3, 0, SEEK_CUR) = 0
[pid 12832] fstat(3, {st_mode=S_IFREG|0644, st_size=777, ...}) = 0
[pid 12832] mmap(NULL, 777, PROT_READ, MAP_SHARED, 3, 0) = 0x7fd7a31c1000
[pid 12832] lseek(3, 777, SEEK_SET) = 777
[pid 12832] fstat(3, {st_mode=S_IFREG|0644, st_size=777, ...}) = 0
[pid 12832] munmap(0x7fd7a31c1000, 777) = 0
[pid 12832] 关闭（3）= 0
[pid 12832] setgroups(1, [33]) = 0
[pid 12832] setuid(33) = 0
[pid 12832] prctl(PR_SET_DUMPABLE, 1) = 0
[pid 12832] 关闭（4）= 0
[pid 12832] 关闭（6）= 0
[pid 12832] rt_sigaction(SIGTERM, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12832] rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12832] rt_sigaction(SIGUSR1, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12832] rt_sigaction(SIGUSR2, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12832] rt_sigaction(SIGCHLD, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12832] rt_sigaction(SIGQUIT, {0x7633f0, [], SA_RESTORER|SA_RESTART, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12832] 关闭(7) = 0
[pid 12832] 接受（0，
[pid 12761] 写入（3，“[2013 年 8 月 21 日 19:33:37] 通知：[池 www] 孩子 12832 已启动\n”，62）= 62
[pid 12761] wait4(-1, 0x7fff07258a7c, WNOHANG|WSTOPPED, NULL) = 0
[pid 12761] read(4, 0x7fff07258b5f, 1) = -1 EAGAIN (资源暂时不可用)
[pid 12761] epoll_wait(9, {}, 1, 108) = 0
[pid 12761] epoll_wait(9, {}, 1, 1000) = 0
[pid 12761] epoll_wait(9, 269f530, 1, 1000) = -1 EINTR（中断的系统调用）
[pid 12761] --- SIGCHLD（孩子退出）@ 0 (0) ---
[pid 12761] 写（6，“C”，1）= 1
[pid 12761] rt_sigreturn(0x6) = -1 EINTR（中断的系统调用）
[pid 12761] epoll_wait(9, {{EPOLLIN, {u32=15427040, u64=15427040}}}, 1, 769) = 1
[pid 12761] 读取（4，“C”，1）= 1
[pid 12761] wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 127}], WNOHANG|WSTOPPED, NULL) = 12830
[pid 12761] 写入（3，“[2013 年 8 月 21 日 19:33:39] 警告：[pool www] 孩子 12830 在开始后 10.053632 秒后退出，代码 127\n”，111）= 111
[pid 12761] 克隆（附加进程 12833
child_stack=0，标志=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD，child_tidptr=0x7fd7a31cfa10) = 12833
[pid 12761] write(3, "[21-Aug-2013 19:33:39] 注意：[pool www] 孩子 12833 开始\n", 62) = 62
[pid 12761] wait4(-1, 0x7fff07258a7c, WNOHANG|WSTOPPED, NULL) = 0
[pid 12761] read(4, 0x7fff07258b5f, 1) = -1 EAGAIN (资源暂时不可用)
[pid 12761] epoll_wait(9,
[pid 12833] set_robust_list(0x7fd7a31cfa20, 0x18) = 0
[pid 12833] dup2(1, 2) = 2
[pid 12833] 关闭（3）= 0
[pid 12833] dup2(7, 0) = 0
[pid 12833] geteuid() = 0
[pid 12833] setrlimit(RLIMIT_NOFILE, {rlim_cur=128*1024, rlim_max=128*1024}) = 0
[pid 12833] setrlimit(RLIMIT_CORE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
[pid 12833] chdir("/") = 0
[pid 12833] setgid(33) = 0
[pid 12833] open("/proc/sys/kernel/ngroups_max", O_RDONLY) = 3
[pid 12833] 读取（3，“65536\n”，31）= 6
[pid 12833] 关闭（3）= 0
[pid 12833] open("/etc/group", O_RDONLY|O_CLOEXEC) = 3
[pid 12833] lseek(3, 0, SEEK_CUR) = 0
[pid 12833] fstat(3, {st_mode=S_IFREG|0644, st_size=777, ...}) = 0
[pid 12833] mmap(NULL, 777, PROT_READ, MAP_SHARED, 3, 0) = 0x7fd7a31c1000
[pid 12833] lseek(3, 777, SEEK_SET) = 777
[pid 12833] fstat(3, {st_mode=S_IFREG|0644, st_size=777, ...}) = 0
[pid 12833] munmap(0x7fd7a31c1000, 777) = 0
[pid 12833] 关闭（3）= 0
[pid 12833] setgroups(1, [33]) = 0
[pid 12833] setuid(33) = 0
[pid 12833] prctl(PR_SET_DUMPABLE, 1) = 0
[pid 12833] 关闭(4) = 0
[pid 12833] 关闭(6) = 0
[pid 12833] rt_sigaction(SIGTERM, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12833] rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12833] rt_sigaction(SIGUSR1, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12833] rt_sigaction(SIGUSR2, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12833] rt_sigaction(SIGCHLD, {SIG_DFL, [], SA_RESTORER, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12833] rt_sigaction(SIGQUIT, {0x7633f0, [], SA_RESTORER|SA_RESTART, 0x7fd7a02234a0}, NULL, 8) = 0
[pid 12833] 关闭（7）= 0
[pid 12833] 接受（0，
[pid 12761] {}, 1, 766) = 0
[pid 12761] epoll_wait(9, {}, 1, 1000) = 0`在此处输入代码`
[pid 12761] epoll_wait(9, {}, 1, 1000) = 0