网站突然出现502 军哥帮看看
vps运行快一年了昨天突然一个网站出现502 Bad Gateway，网站也有一年左右了 都正常
vps上其他网站正常 重启vps过一会儿又出现这个问题
Feb 18 16:18:47.021370 fpm_got_signal(), line 48: received SIGCHLD
Feb 18 16:18:47.021440 fpm_children_bury(), line 215: child 12899 (pool default) exited with code 0 after 158520.438833 seconds from start
Feb 18 16:18:47.021899 fpm_children_make(), line 352: child 28779 (pool default) started
Feb 18 16:22:16.328642 fpm_got_signal(), line 48: received SIGCHLD
Feb 18 16:22:16.328743 fpm_children_bury(), line 215: child 12927 (pool default) exited with code 0 after 158704.122543 seconds from start
Feb 18 16:22:16.329199 fpm_children_make(), line 352: child 28832 (pool default) started
Feb 18 16:28:51.598837 fpm_got_signal(), line 48: received SIGCHLD
Feb 18 16:28:51.598895 fpm_children_bury(), line 215: child 13175 (pool default) exited with code 0 after 158780.475690 seconds from start
Feb 18 16:28:51.599136 fpm_children_make(), line 352: child 28923 (pool default) started
Feb 18 17:08:25.552700 fpm_got_signal(), line 48: received SIGCHLD
Feb 18 17:08:25.552793 fpm_children_bury(), line 215: child 13969 (pool default) exited with code 0 after 159887.013676 seconds from start
Feb 18 17:08:25.553102 fpm_children_make(), line 352: child 29790 (pool default) started
Feb 18 17:53:56.410553 fpm_got_signal(), line 48: received SIGCHLD
Feb 18 17:53:56.410619 fpm_children_bury(), line 215: child 15124 (pool default) exited with code 0 after 160299.079022 seconds from start
Feb 18 17:53:56.410870 fpm_children_make(), line 352: child 31114 (pool default) started
Feb 20 10:04:17.910094 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 10:04:17.930971 fpm_children_bury(), line 215: child 28779 (pool default) exited with code 0 after 150330.909083 seconds from start
Feb 20 10:04:17.931392 fpm_children_make(), line 352: child 11340 (pool default) started
Feb 20 10:05:30.885115 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 10:05:30.885169 fpm_children_bury(), line 215: child 28832 (pool default) exited with code 0 after 150194.555995 seconds from start
Feb 20 10:05:30.885418 fpm_children_make(), line 352: child 11356 (pool default) started
Feb 20 10:06:57.285414 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 10:06:57.285476 fpm_children_bury(), line 215: child 28923 (pool default) exited with code 0 after 149885.686356 seconds from start
Feb 20 10:06:57.285731 fpm_children_make(), line 352: child 11399 (pool default) started
Feb 20 11:40:27.041101 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 11:40:27.041155 fpm_children_bury(), line 215: child 31114 (pool default) exited with code 0 after 150390.630299 seconds from start
Feb 20 11:40:27.041408 fpm_children_make(), line 352: child 12853 (pool default) started
Feb 20 22:15:40.410703 fpm_got_signal(), line 56: received SIGTERM
Feb 20 22:15:40.410737 fpm_pctl(), line 256: switching to 'terminating' state
Feb 20 22:15:40.410776 fpm_pctl_kill_all(), line 172: sending signal 15 SIGTERM to child 12853 (pool default)
Feb 20 22:15:40.410784 fpm_pctl_kill_all(), line 172: sending signal 15 SIGTERM to child 11399 (pool default)
Feb 20 22:15:40.410791 fpm_pctl_kill_all(), line 172: sending signal 15 SIGTERM to child 11356 (pool default)
Feb 20 22:15:40.410798 fpm_pctl_kill_all(), line 172: sending signal 15 SIGTERM to child 11340 (pool default)
Feb 20 22:15:40.410804 fpm_pctl_kill_all(), line 172: sending signal 15 SIGTERM to child 29790 (pool default)
Feb 20 22:15:40.410810 fpm_pctl_kill_all(), line 181: 5 children are still alive
Feb 20 22:15:40.412555 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 22:15:40.412588 fpm_children_bury(), line 215: child 29790 (pool default) exited on signal 15 SIGTERM after 191234.859502 seconds from start
Feb 20 22:15:40.412980 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 22:15:40.413003 fpm_children_bury(), line 215: child 11399 (pool default) exited on signal 15 SIGTERM after 43723.127286 seconds from start
Feb 20 22:15:40.414092 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 22:15:40.414125 fpm_children_bury(), line 215: child 11340 (pool default) exited on signal 15 SIGTERM after 43882.482754 seconds from start
Feb 20 22:15:40.416725 fpm_got_signal(), line 48: received SIGCHLD
Feb 20 22:15:40.416763 fpm_children_bury(), line 215: child 12853 (pool default) exited on signal 15 SIGTERM after 38113.375368 seconds from start
Feb 20 22:15:40.422325 fpm_children_bury(), line 215: child 11356 (pool default) exited on signal 15 SIGTERM after 43809.536920 seconds from start
Feb 20 22:15:40.422346 fpm_pctl_exit(), line 81: exiting, bye-bye!
Feb 20 22:15:51.905521 fpm_unix_init_main(), line 284: getrlimit(nofile): max:4096, cur:1024
Feb 20 22:15:51.905699 fpm_event_init_main(), line 88: libevent: using epoll
Feb 20 22:15:51.905757 fpm_init(), line 52: fpm is running, pid 436
Feb 20 22:15:51.906063 fpm_children_make(), line 352: child 438 (pool default) started
Feb 20 22:15:51.906272 fpm_children_make(), line 352: child 439 (pool default) started
Feb 20 22:15:51.906485 fpm_children_make(), line 352: child 440 (pool default) started
Feb 20 22:15:51.906689 fpm_children_make(), line 352: child 441 (pool default) started
Feb 20 22:15:51.906887 fpm_children_make(), line 352: child 442 (pool default) started
Feb 20 22:15:51.906915 fpm_event_loop(), line 107: libevent: entering main loop 有程序执行时间很长，导致php-fpm挂掉
可以开启慢日志看看更详细的信息，也可排查一下插件之类的
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