Re: [users@httpd] mod_proxy (reverse): Problem after restarting backend

Christian Gottschalch <masro@xxxxxxx> · Wed, 25 Oct 2006 12:09:51 +0200

do you read 

http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#proxypass there are 

new options for ProxyPass 2.2.X

"Connection pool worker retry timeout in seconds. If the connection pool 

worker to the backend server is in the error state, Apache will not 

forward any requests to that server until the timeout expires. This 

enables to shut down the backend server for maintenance, and bring it 

back online later."

Nico -telmich- Schottelius schrieb:

Hello Christian!

Christian Gottschalch [Tue, Oct 24, 2006 at 09:10:05PM +0200]:

2.0.59 mod_proxy, but dont ever observed the problem that you described.

by every HTTP request you send to apache, apache tryes to reach the 

backend, try to sniff the traffic between client -> reversproxy & 

reverse proxy -> backend to see whats happening.

it may be an configuration failure

Do you have any hint, which one?

The system here is:
----------------------------------------------------------------------
ddba018% uname -s -r
FreeBSD 6.1-RELEASE

ddba018% httpd -V       

Server version: Apache/2.2.3

Server built:   Sep 21 2006 13:17:20
Server's Module Magic Number: 20051115:3
Server loaded:  APR 1.2.7, APR-Util 1.2.7
Compiled using: APR 1.2.7, APR-Util 1.2.7
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_FLOCK_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="/usr/local"
 -D SUEXEC_BIN="/usr/local/bin/suexec"
 -D DEFAULT_PIDLOG="/var/run/httpd.pid"
 -D DEFAULT_SCOREBOARD="/var/run/apache_runtime_status"
 -D DEFAULT_LOCKFILE="/var/run/accept.lock"
 -D DEFAULT_ERRORLOG="/var/log/httpd-error.log"
 -D AP_TYPES_CONFIG_FILE="etc/apache22/mime.types"
 -D SERVER_CONFIG_FILE="etc/apache22/httpd.conf"
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