Thank you very much Chris,
I've checked the md5sum and file information for the mod_jk that failed and
it's the same, so it seems to be a misplaced description, at least at the
rediris.es site here in Spain.
All my log levels are set to debug, I will compile my own mod_jk.
I hope to give it a try this weekend so I will get back to you with the
results. I will make sure that it's not a problem with workers.properties or
mod_jk.conf, I don't use urimap.properties, I will try that too.
Anyway, if my problem persists I will attach all the configuration files
Thanks again, have a nice weekend!
Date: Thu, 18 Nov 2010 10:07:57 -0500
From: ch...@christopherschultz.net
To: users@tomcat.apache.org
Subject: Re: Problems with new mod_jk and possible misinformation on the
website
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On 11/18/2010 7:01 AM, Héctor Gómez wrote:
Hi, I'm running a CentOs 5 with Apache 2.0.52. I've tried to connect
Apache with Tomcat 7.0.4 using mod_jk. First I tried the jk-1.2.31
version. As I have a i586 I choosed the i386 release, and downloaded
mod_jk-1.2.31-httpd-2.0.x.so Ok, here there might be a mistake. On
the description you can read Apache Tomcat Connectors (mod_jk)
1.2.31 for Linux x86_64. Notice the x86_64! (I'm inside the i386
folder!)
That looks like a documentation mistake.
$ wget
'http://www.motorlogy.com/apachemirror//tomcat/tomcat-connectors/jk/binaries/linux/jk-1.2.31/i386/mod_jk-1.2.31-httpd-2.0.x.so'
$ md5sum mod_jk-1.2.31-httpd-2.0.x.so
7ffd2f097a399669e28fb47e5d6c065c mod_jk-1.2.31-httpd-2.0.x.so
$ file mod_jk-1.2.31-httpd-2.0.x.so
mod_jk-1.2.31-httpd-2.0.x.so: ELF 32-bit LSB shared object, Intel 80386,
version 1 (SYSV), dynamically linked, not stripped
Looks like i386 to me.
That connector is said to be built against version 2.0.52, but it
doesn't work. Apache fails on startup and logs no error, and mod_jk
log neither.
If the module won't load, you won't get a mod_jk.log file at all. Try
turning-up the error log level in httpd and trying again.
I've never seen httpd fail to start and /also/ fail to emit an error
message of /some/ kind. If CentOS has the error log going to syslog or
something, you might want to check there, too.
Maybe the i386 version is not suitable for a i586
Nope, i386 should even work on x86_64 (as long as the process is in x86
mode).
or maybe this is in fact a x86_64 version (as the description says)
even if it's placed into the i386 folder.
Nope, see above.
Anyway, I downloaded the jk-1.2.30 for i586. That suits my
architecture, and Apache starts up the right way. But... no
redirection is done!
Configuration please? Jk* directives as well as workers.properties (if
you are using one) and urimap.properties (if you are using one). Also,
tell us what URIs you are trying that aren't being redirected.
Often, users specify their JkMounts at the top-level configuration, and
then use a VirtualHost to define all of their services. If you do
that, you'll observe mod_jk doing nothing at all. You should move your
JkMounts to within your VirtualHost. If you /must/ define those at the
top-level, then use JkMountCopy On in your VirtualHost and that
should inherit your mounts from the top-level.
The connector doesn't seem to be working as expected. The problem is
that this version may not be suitable for me, as it has been build
against version 2.0.61 and should work with Apache 2.0.55 and
later. But mine is 2.0.52 and I can't change it. Should I
downgrade?
I don't think you should downgrade.
What can I do? Is there a problem with the jk-1.2.31 for i386?
Perhaps.
or is it just a misplaced description?
That is almost certainly true.
Another option you always have is to compile the module yourself. If you
have gcc and make installed as well as apxs (usually installed with an
apache-httpd-dev package or somesuch), then it's trivial to compile
mod_jk against your own httpd that is pretty much guaranteed to work.
I always compile my own mod_jk and I've never had any problems.
Hope that helps,
- -chris
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