On 07.06.2010 20:22, Mangold, Daniel wrote:
Hello to all,
I have a problem with mod_jk (hope this is the right place form my problem).
Used servers and versions:
- Apache 2.2.15 (Win32)
- mod_jk/1.2.30
- Apache Tomcat/6.0.20 using AJP/1.3
- jdk1.5.0_12
Problem description:
I enter the appropriate URL pointing to the balancing web server into the
internet explorer address bar (IE on a host different to the machine where web
server and tomcats are installed), press enter and get a '503 - service
unavailable message' back.
I have 2 Tomcat instances, both up and running and http accessible.
When (with the same internet explorer window) I first enter the URL of one
Tomcat instance directly, get the requested page back, then again try the URL
using the web server, it suddenly works. This seems not to be due to caching,
because I do not see the failure message in mod_jk.log anymore and I get log
information which indicates that everything went fine.
When I try to access the web server URL locally from the machine where all
servers are installed, it works from the beginning.
I tried several configurations and don't know what else to try.
The mod_jk status page shows that the tomcat instances were found and that
there is no error.
mod_jk.log shows those messages when I enter the web servers URL:
(I attached 2 full mod_jk.conf to this email with different configs but same
result).
[Mon Jun 07 18:29:29 2010][1944:408] [debug] jk_uri_worker_map.c (1036):
Attempting to map URI '/W********h/' from 4 maps [Mon Jun 07 18:29:29
2010][1944:408] [debug] jk_uri_worker_map.c (850): Attempting to map context
URI '/W********h/*=balancer' source 'JkMount'
[Mon Jun 07 18:29:29 2010][1944:408] [debug] jk_uri_worker_map.c (863): Found a
wildchar match '/W********h/*=balancer'
[Mon Jun 07 18:29:29 2010][1944:408] [debug] mod_jk.c (2462): Into handler
jakarta-servlet worker=balancer r->proxyreq=0 [Mon Jun 07 18:29:29
2010][1944:408] [debug] jk_worker.c (116): found a worker balancer [Mon Jun 07
18:29:29 2010][1944:408] [debug] jk_worker.c (339): Maintaining worker balancer
[Mon Jun 07 18:29:29 2010][1944:408] [debug] jk_ajp_common.c (3197): reached pool
min size 32 from 64 cache slots [Mon Jun 07 18:29:29 2010][1944:408] [debug]
jk_ajp_common.c (3197): reached pool min size 32 from 64 cache slots [Mon Jun 07
18:29:29 2010][1944:408] [debug] jk_worker.c (293): Found worker type 'lb'
[Mon Jun 07 18:29:29 2010][1944:408] [debug] mod_jk.c (978): Service
protocol=HTTP/1.0 method=GET ssl=false host=(null) addr=**.*.*.130
name=********* port=8080 auth=(null) user=(null) laddr=**.*.*.21
raddr=**.*.*.130 uri=/Workbench/ [Mon Jun 07 18:29:29 2010][1944:408] [debug]
jk_lb_worker.c (1118): service sticky_session=1
id='933BF867682BC5657E3F27E5D17917D7'
[Mon Jun 07 18:29:29 2010][1944:408] [debug] jk_lb_worker.c (946): searching
worker for partial sessionid 933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07
18:29:29 2010][1944:408] [info] jk_lb_worker.c (985): all workers are in error
state for session 933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07 18:29:29
2010][1944:408] [info] jk_lb_worker.c (1448): All tomcat instances failed, no
more workers left for recovery (attempt=0, retry=0) [Mon Jun 07 18:29:29
2010][1944:408] [debug] jk_lb_worker.c (946): searching worker for partial
sessionid 933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07 18:29:29 2010][1944:408]
[info] jk_lb_worker.c (985): all workers are in error state for session
933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07 18:29:29 2010][1944:408] [info]
jk_lb_worker.c (1457): All tomcat instances failed, no more workers left
(attempt=1, retry=0) [Mon Jun 07 18:29:29 2010][1944:408] [debug]
jk_lb_worker.c (1131): retry 1, sleeping for 100 ms before retrying [Mon Jun 07
18:29:29 20
10][1944:408] [debug] jk_lb_worker.c (946): searching worker for partial sessionid 933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07 18:29:29 2010][1944:408] [info] jk_lb_worker.c (985): all workers are in error state for session 933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07 18:29:29 2010][1944:408] [info] jk_lb_worker.c (1457): All tomcat instances failed, no more workers left (attempt=0, retry=1) [Mon Jun 07 18:29:29 2010][1944:408] [debug] jk_lb_worker.c (946): searching worker for partial sessionid 933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07 18:29:29 2010][1944:408] [info] jk_lb_worker.c (985): all workers are in error state for session 933BF867682BC5657E3F27E5D17917D7 [Mon Jun 07 18:29:29 2010][1944:408] [info] jk_lb_worker.c (1457): All tomcat instances failed, no more workers left (attempt=1, retry=1) [Mon Jun 07 18:29:29 2010][1944:408] [info] jk_lb_worker.c (1468): All tomcat instances are busy or in error state [Mon Jun 07 18:29:29 2010][1944:408] [error] jk_lb_worker.c
(1473): All tomcat instances failed, no more workers left [Mon Jun 07 18:29:29 2010]balancer ********* 0.109377 [Mon Jun 07 18:29:29 2010][1944:408] [info] mod_jk.c (2618): Service error=0 for worker=balancer
The attachment did not go through and the lines included in the mail are
wrapped in a way that it is hard to read them. Shortly rading through
the lines indicates, that this is not the full log file?
Your configuration also seems to be copied from some very old example
configurations. Do yourself a favor, grab a source distribution of
mod_jk from http://tomcat.apache.org/download-connectors.cgi and have a
look at the contained example configuration.
Regards,
Rainer
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