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Subject DO NOT REPLY [Bug 48130] New: DAV operations on large filesets consume all the server memory
Date Wed, 04 Nov 2009 21:00:41 GMT

           Summary: DAV operations on large filesets consume all the
                    server memory
           Product: Apache httpd-2
           Version: 2.2.14
          Platform: Other
        OS/Version: AIX
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mod_dav

Compiled apache with --enable-dav with gcc version 4.2.0. AIX OS level is

Enabled DAV for NetApp vFiler filesystem (=network mounted) including up to 57
directories each holding 3000 to 20000 files. Filesystem is holding
approximately 70 Gigabytes of data. 

Apache2 installation and DavLockDB located on SAN-volume. 

Listing directories via a browser (without DAV) does not make httpd to increase
memory allocation when browsing through directories. Everything works nicely.  

Listing directories via Windows XP SP3 DAV-client makes httpd to allocate more
and more memory when opening directory after directory. Everythings seems to
work, but more and more memory is allocated and nothings seems to be freed. In
the end, all the AIX memory is allocated by the httpd and AIX starts to kill

DAV enabled with : 
<Directory "/netapp/...">
    Dav On
    Options Indexes
    Order Allow,Deny
    Allow from all

    AuthType Basic
    AuthBasicProvider file
    AuthUserFile /home/.../httpd/conf/passwords
    AuthGroupFile /home/.../httpd/conf/groups

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