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From "Christophe Yayon" <li...@nbux.com>
Subject mod_proxy error, segmentation fault
Date Mon, 21 Nov 2005 17:24:15 GMT
Ji all,

I am trying to configure a apache 2.1.9-beta reverse proxy with mod_proxy
(or mod_rewrite [P]) and i encounter a strange problem, i think it is a
bug...

I encounter the problem when i do load tests with 10 simultaneous
users(with LoadRunner application). When i do single test request (a
standalone user), i have no error.

Here is the error message that i got in error log :
proxy: error reading status line from remote server (null), referer ...
proxy: Error reading from remote server returned by ...
[...]
child pid 18743 exit signal Segmentation fault (11) (sometimes only)

My configuration looks like this :
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule dumpio_module modules/mod_dumpio.so
LoadModule include_module modules/mod_include.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
LoadModule expires_module modules/mod_expires.so
LoadModule headers_module modules/mod_headers.so
LoadModule ident_module modules/mod_ident.so
LoadModule usertrack_module modules/mod_usertrack.so
LoadModule unique_id_module modules/mod_unique_id.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule version_module modules/mod_version.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
LoadModule mime_module modules/mod_mime.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
LoadModule asis_module modules/mod_asis.so
LoadModule info_module modules/mod_info.so
LoadModule vhost_alias_module modules/mod_vhost_alias.so
LoadModule dir_module modules/mod_dir.so
LoadModule alias_module modules/mod_alias.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule cache_module modules/mod_cache.so
LoadModule mem_cache_module modules/mod_mem_cache.so
LoadModule ssl_module modules/mod_ssl.so
LoadModule security_module modules/mod_security.so
[...]
RewriteEngine On
RewriteRule "(.*)" "http://my_backend_server:8080%{REQUEST_URI}" [P,L]

I have also tried with ProxyPass only (instead of mod_rewrite), and i have
the same problem.


Thanks in advance.




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