apache总自己死掉求助

云随风起

来往的各路高手，请帮忙分析下原因：\r\n现在我们公司的apache总自己停掉，网络结构是一台apache后面挂六个tomcat，apache的ps -ef|grep httpd|wc -l命令查看并发大概在一千二三，但现在出现一个情况是每隔两三天apache会自动停掉，我看日志mod_jk.log中有上百兆的错误，都是\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_send_request::jk_ajp_common.c (1225): All endpoints are disconnected or dead\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_service::jk_ajp_common.c (1749): Sending request to tomcat failed,  recoverable operation attempt=1\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_send_request::jk_ajp_common.c (117: Socket 19 is not connected any more (errno=-1)\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_send_request::jk_ajp_common.c (1202): Error sending request. Will try another pooled connection\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_send_request::jk_ajp_common.c (1225): All endpoints are disconnected or dead\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_service::jk_ajp_common.c (1749): Sending request to tomcat failed,  recoverable operation attempt=1\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_send_request::jk_ajp_common.c (117: Socket 15 is not connected any more (errno=-1)\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_send_request::jk_ajp_common.c (1202): Error sending request. Will try another pooled connection\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_send_request::jk_ajp_common.c (1225): All endpoints are disconnected or dead\r\n[Tue Jul 18 18:38:35 2006] [info]  ajp_service::jk_ajp_common.c (1749): Sending request to tomcat failed,  recoverable operation attempt=1\r\n不停的抛，看数据库压力也不大，tomcat服务器占得cpu也很小，重启下apache后就能恢复正常，请问下这可能是哪地方的原因，看tomcat日志也没有异常情况，谢谢