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Posted to dev@httpd.apache.org by Jim Jagielski <ji...@jaguNET.com> on 2005/09/06 20:50:35 UTC
proxy balancer hook (Was: Re: LoadModule questions on WIN32)
Can anyone else recreate the core dumps that Mladen is seeing with
the balancer in 2.1.7-beta? The httpd-test perl framework has a simple
test for it.
--
===========================================================================
Jim Jagielski [|] jim@jaguNET.com [|] http://www.jaguNET.com/
Re: proxy balancer hook (Was: Re: LoadModule questions on WIN32)
Posted by "William A. Rowe, Jr." <wr...@rowe-clan.net>.
r.pluem@t-online.de wrote:
> Jim Jagielski wrote:
>
>>Can anyone else recreate the core dumps that Mladen is seeing with
>>the balancer in 2.1.7-beta? The httpd-test perl framework has a simple
>>test for it.
>>
>
>
> I can confirm Mladens core dumps. I used the latest revision from svn
> and did the following:
>
> ./configure --prefix=/usr/src/apache/apache_trunk \
> --with-mpm=worker \
> --enable-so \
> --enable-mods-shared=all \
> --enable-proxy=shared \
> --enable-proxy-balancer=shared \
> --enable-proxy-http=shared \
> --enable-proxy-ajp=shared
>
> make
> make install
>
>
> I added the following lines to the default httpd.conf
>
> LoadModule proxy_module modules/mod_proxy.so
> LoadModule proxy_connect_module modules/mod_proxy_connect.so
> LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
> LoadModule proxy_http_module modules/mod_proxy_http.so
> LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
> LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
>
> <Proxy balancer://cluster>
> BalancerMember ajp://localhost:8009
> </Proxy>
>
> ProxyPass /servlet-examples/ balancer://cluster//servlet-examples/
>
> Calling http://127.0.0.1/servlet-examples
>
> resulted in:
>
> [Tue Sep 06 22:11:53 2005] [notice] child pid 30700 exit signal Segmentation fault (11)
>
> Stacktrace:
>
>
> #0 0x00000000 in ?? ()
> #1 0x403bca71 in find_best_worker (balancer=0x4083b94c, r=0x4083b950)
> at mod_proxy_balancer.c:379
> #2 0x403bccee in proxy_balancer_pre_request (worker=0x4083b94c,
> balancer=0x4083b950, r=0x8171758, conf=0x80f2ed0, url=0x4083b954)
> at mod_proxy_balancer.c:511
> #3 0x4039a2f9 in proxy_run_pre_request (worker=0x4083b94c,
> balancer=0x4083b950, r=0x8171758, conf=0x80f2ed0, url=0x4083b954)
> at mod_proxy.c:1947
> #4 0x4039cafe in ap_proxy_pre_request (worker=0x4083b94c,
> balancer=0x4083b950, r=0x8171758, conf=0x80f2ed0, url=0x4083b954)
> at proxy_util.c:1325
>
> System:
>
> glibc-2.2.5
> Linux euler 2.4.21-20050503-ruediger #2 Tue May 3 12:40:08 CEST 2005 i686 unknown
>
> Putting
>
> LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
>
> before
>
> LoadModule proxy_module modules/mod_proxy.so
>
> in httpd.conf results in
>
> httpd: Syntax error on line 101 of /usr/src/apache/apache_trunk/conf/httpd.conf: Cannot load
> /usr/src/apache/apache_trunk/modules/mod_proxy_balancer.so into server:
> /usr/src/apache/apache_trunk/modules/mod_proxy_balancer.so: undefined symbol: proxy_module
>
> So this does not "fix" it either.
My load order (in the perlframework/t/conf/httpd.conf) was...
mod_proxy
mod_proxy_ajp
mod_proxy_balancer
mod_proxy_connect
mod_proxy_http
mod_proxy_ftp
Does that affect anything if you reorganize?
Bill
Re: proxy balancer hook (Was: Re: LoadModule questions on WIN32)
Posted by r....@t-online.de.
Jim Jagielski wrote:
> Can anyone else recreate the core dumps that Mladen is seeing with
> the balancer in 2.1.7-beta? The httpd-test perl framework has a simple
> test for it.
>
I can confirm Mladens core dumps. I used the latest revision from svn
and did the following:
./configure --prefix=/usr/src/apache/apache_trunk \
--with-mpm=worker \
--enable-so \
--enable-mods-shared=all \
--enable-proxy=shared \
--enable-proxy-balancer=shared \
--enable-proxy-http=shared \
--enable-proxy-ajp=shared
make
make install
I added the following lines to the default httpd.conf
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
<Proxy balancer://cluster>
BalancerMember ajp://localhost:8009
</Proxy>
ProxyPass /servlet-examples/ balancer://cluster//servlet-examples/
Calling http://127.0.0.1/servlet-examples
resulted in:
[Tue Sep 06 22:11:53 2005] [notice] child pid 30700 exit signal Segmentation fault (11)
Stacktrace:
#0 0x00000000 in ?? ()
#1 0x403bca71 in find_best_worker (balancer=0x4083b94c, r=0x4083b950)
at mod_proxy_balancer.c:379
#2 0x403bccee in proxy_balancer_pre_request (worker=0x4083b94c,
balancer=0x4083b950, r=0x8171758, conf=0x80f2ed0, url=0x4083b954)
at mod_proxy_balancer.c:511
#3 0x4039a2f9 in proxy_run_pre_request (worker=0x4083b94c,
balancer=0x4083b950, r=0x8171758, conf=0x80f2ed0, url=0x4083b954)
at mod_proxy.c:1947
#4 0x4039cafe in ap_proxy_pre_request (worker=0x4083b94c,
balancer=0x4083b950, r=0x8171758, conf=0x80f2ed0, url=0x4083b954)
at proxy_util.c:1325
System:
glibc-2.2.5
Linux euler 2.4.21-20050503-ruediger #2 Tue May 3 12:40:08 CEST 2005 i686 unknown
Putting
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
before
LoadModule proxy_module modules/mod_proxy.so
in httpd.conf results in
httpd: Syntax error on line 101 of /usr/src/apache/apache_trunk/conf/httpd.conf: Cannot load
/usr/src/apache/apache_trunk/modules/mod_proxy_balancer.so into server:
/usr/src/apache/apache_trunk/modules/mod_proxy_balancer.so: undefined symbol: proxy_module
So this does not "fix" it either.
Regards
Rüdiger