这些网站服务器的错误信息是什么意思？

[Tue Jul 17 00:19:21 2007] [info]  mod_jk.c (194: No body with status=500 for worker=worker1
[Tue Jul 17 03:01:24 2007] [info]  jk_ajp_common.c (955): Tomcat has forced a connection close for socket 384
[Tue Jul 17 08:51:42 2007] [info]  jk_connect.c (444): connect to 127.0.0.1:8009 failed with errno=61
[Tue Jul 17 09:04:42 2007] [info]  mod_jk.c (1971): Service error=0 for worker=worker1
[Tue Jul 17 09:04:42 2007] [error] jk_ajp_common.c (175: Error connecting to tomcat. Tomcat is probably not started or is listening on the wrong port. worker=worker1 failed
[Tue Jul 17 09:04:42 2007] [info]  jk_ajp_common.c (1749): Sending request to tomcat failed,  recoverable operation attempt=3
[Tue Jul 17 09:04:42 2007] [info]  jk_ajp_common.c (889): Failed opening socket to (127.0.0.1:8009) with (errno=61)

哪位高手知道？