Hi,
We are using Apache 2.2.29 in production with mod_perl and mod_proxy (we're acting as a reverse proxy) and are experiencing a problem with proxying responses from the back end server that don't include a response phrase being turned into a 500 error by Apache when it proxies to the client. The client is using a custom response code of 320 and is not including a response phrase in their status line. This sounds almost identical to an old bug that was fixed (or supposedly fixed) a very long time ago:
In our mod_perl application if we modify the status line read from the backend server to include a response phrase then this avoids the bug. E.g., things are ok if we do something like this when the status line doesn't contain a response phrase.
$r->status_line($r->status . ' OK');
Does anyone have any experience with this or should I file a new bug with Apache?
Here is some diag info from the httpd binary:
Loaded Modules:
core_module (static)
authn_file_module (static)
authn_default_module (static)
authz_host_module (static)
authz_groupfile_module (static)
authz_user_module (static)
authz_default_module (static)
auth_basic_module (static)
file_cache_module (static)
cache_module (static)
disk_cache_module (static)
reqtimeout_module (static)
filter_module (static)
deflate_module (static)
log_config_module (static)
env_module (static)
headers_module (static)
setenvif_module (static)
version_module (static)
proxy_module (static)
proxy_http_module (static)
proxy_scgi_module (static)
proxy_ajp_module (static)
proxy_balancer_module (static)
ssl_module (static)
mpm_prefork_module (static)
http_module (static)
mime_module (static)
status_module (static)
actions_module (static)
alias_module (static)
so_module (static)
Server version: Apache/2.2.29 (Unix)
Server built: Oct 17 2014 13:47:09
Server's Module Magic Number: 20051115:36
Server loaded: APR 1.5.1, APR-Util 1.5.3
Compiled using: APR 1.5.1, APR-Util 1.5.3
Architecture: 32-bit
Server MPM: Prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=128
-D HTTPD_ROOT="/var/httpd"
-D SUEXEC_BIN="/var/httpd/bin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="logs/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"
Thanks,
Adam
