Bug#423653: apache2.2-common: mod_disk_cache fills /var after etch upgrade
Package: apache2.2-common
Version: 2.2.3-4
Severity: critical
Justification: breaks unrelated software
After an upgrade to etch, mod_disk_cache started storing things in
/var/cache/apache2/mod_disk_cache, without any apparently limit on size.
This caused /var to fill up, which had bad effects on the entire system.
I am not sure if mod_disk_cache was enabled or not before the upgrade to
etch (from sarge), but it was certainly not using disk space in the same
way.
The problem appears to be related to having mod_proxy enabled at upgrade
time, according to bug #407171
(http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=407171)
It is not entirely clear to me from that bug description whether
mod_disk_cache was previously enabled but in a different way, or if it
is newly enabled by the upgrade.
mod_disk_cache appears to be experimental
(http://httpd.apache.org/docs/2.0/mod/mod_disk_cache.html), and also the
"garbage collection" features that would be necesary to keep the disk
cache to a fixed bound are not yet implemented. Disabling it seems not
to have caused any problems, even for mod_proxy.
Someone else seems to have noticed this problem too:
http://tumbleweed.org.za/2007/05/04/sarge-etch-upgrade-and-apache2/
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (600, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages apache2.2-common depends on:
ii apache2-utils 2.2.3-4 utility programs for webservers
ii libmagic1 4.17-5etch1 File type determination library us
ii lsb-base 3.1-23.1 Linux Standard Base 3.1 init scrip
ii mime-support 3.39-1 MIME files 'mime.types' & 'mailcap
ii net-tools 1.60-17 The NET-3 networking toolkit
ii procps 1:3.2.7-3 /proc file system utilities
apache2.2-common recommends no packages.
-- no debconf information
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