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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 50489] New: Apache
Date Thu, 16 Dec 2010 19:58:02 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=50489

           Summary: Apache
           Product: Apache httpd-2
           Version: 2.2.17
          Platform: PC
        OS/Version: Windows Server 2003
            Status: NEW
          Severity: major
          Priority: P2
         Component: Core
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: maxc@hubspan.com


Environment:
    OS:  Windows 2K3 - R2 - SP2 - 32bit
    Apache Version: 2.2.17
    Open SSL Version: 0.9.8.P
    Installed modules:
               LoadModule actions_module modules/mod_actions.so
               LoadModule alias_module modules/mod_alias.so
               LoadModule auth_basic_module modules/mod_auth_basic.so
               LoadModule authn_default_module modules/mod_authn_default.so
               LoadModule authn_file_module modules/mod_authn_file.so
               LoadModule authz_default_module modules/mod_authz_default.so
               LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
               LoadModule authz_host_module modules/mod_authz_host.so
               LoadModule authz_user_module modules/mod_authz_user.so
               LoadModule autoindex_module modules/mod_autoindex.so
               LoadModule env_module modules/mod_env.so
               LoadModule headers_module modules/mod_headers.so
               LoadModule info_module modules/mod_info.so
               LoadModule log_config_module modules/mod_log_config.so
               LoadModule mime_module modules/mod_mime.so
               LoadModule mime_magic_module modules/mod_mime_magic.so
               LoadModule proxy_module modules/mod_proxy.so
               LoadModule proxy_http_module modules/mod_proxy_http.so
               LoadModule negotiation_module modules/mod_negotiation.so
               LoadModule rewrite_module modules/mod_rewrite.so
               LoadModule setenvif_module modules/mod_setenvif.so
               LoadModule status_module modules/mod_status.so
               LoadModule ssl_module modules/mod_ssl.so

    Related http.conf settings:
        ThreadsPerChild 250
        MaxRequestsPerChild  3000

Usage:
    Request Type: SSL
    Use Case:  Frontend proxy server to back end Java Servers

Problem Summary:

During moderate web request volume we are seeing cases where Apache ceases to
service requests.  We are also seeing the memory foot print of the httpd
process continue to grow overtime.  Apache has a feature which allows worker
threads spawned by Apache to self-terminate based on the work thread count. 
This feature has been turned on.  It appears that Apache reaches a state where
it cannot re-spawn worker threads as necessary.  When this state is reached all
subsequent HTTPS requests are denied.  It should be noted that some post
requests are large i.e. 30MG.  Any insight into the cause and possible
applicable patches would be much appreciated.

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