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Subject DO NOT REPLY [Bug 52391] New: 100% CPU usage while using Forward Proxy
Date Tue, 27 Dec 2011 19:07:14 GMT

             Bug #: 52391
           Summary: 100% CPU usage while using Forward Proxy
           Product: Apache httpd-2
           Version: 2.2.21
          Platform: PC
            Status: NEW
          Severity: critical
          Priority: P2
         Component: All
    Classification: Unclassified


At a certain point in time, httpd.exe starts using 100% cpu (one thread, so
12,5% on my 8-core machine). Over time, this shifts to 25%, 37,5%, 50% and
higher, so I restart the service. I started noticing it since version 2.2.17.

The configuration file httpd.conf is the standard one with the following

#Begin custom modules SVB

LoadModule cache_module modules/
LoadModule disk_cache_module modules/

LoadModule proxy_module modules/
LoadModule proxy_ajp_module modules/
LoadModule proxy_balancer_module modules/
LoadModule proxy_connect_module modules/
LoadModule proxy_ftp_module modules/
LoadModule proxy_http_module modules/
LoadModule proxy_scgi_module modules/

#End custom modules SVB

#Begin custom settings SVB

<IfModule mod_cache.c>
    <IfModule mod_disk_cache.c>
        CacheDirLength 1
        CacheDirLevels 2
        CacheMaxFileSize 1000000000
        CacheMinFileSize 1
        CacheRoot T:\Apache\HTTPD\CacheRoot
        CacheEnable disk /

ProxyRequests On
ProxyVia On

<Proxy *>
    Order deny,allow
    Deny from all
    Allow from 192.168.1

#End custom settings SVB

Can I help you by adding a memory dump file and some log files?

Kind regards,


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