Bug#683215: librdf-linkeddata-perl: Performance issues caused by parsing external file on every request

Kjetil Kjernsmo kjetil at kjernsmo.net
Sun Jul 29 21:19:24 UTC 2012


Package: librdf-linkeddata-perl
Version: 0.54-1
Severity: normal
Tags: upstream, fixed-upstream

Dear Maintainer,

The present release will reload and parse an external VoID file on every 
request, which causes performance problems if that file is large. The 
workaround is too keep the file small or to not use librdf-generator-void-
perl (which should be recommended, not suggested, users should have a good 
reason to not want it).

It is however fixed in the latest upstream release as this release will 
check to see if the file has been modified before reloading the file. It also 
corrects the ETag usage, so clients and proxies will be able to cache the 
response.

Kjetil

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.1.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages librdf-linkeddata-perl depends on:
ii  libhtml-html5-writer-perl      0.201-1
ii  liblog-log4perl-perl           1.29-1
ii  libmoose-perl                  2.0603-1
ii  libmoosex-log-log4perl-perl    0.46-1
ii  libmoosex-undeftolerant-perl   0.17-1
ii  libnamespace-autoclean-perl    0.13-1
ii  libplack-perl                  0.9989-1
ii  librdf-helper-properties-perl  0.10-1
ii  librdf-rdfa-generator-perl     0.102-1
ii  librdf-trine-perl              1.000-1
ii  liburi-perl                    1.60-1
ii  libwww-perl                    6.04-1
ii  perl                           5.14.2-12

librdf-linkeddata-perl recommends no packages.

Versions of packages librdf-linkeddata-perl suggests:
ii  librdf-generator-void-perl  0.04-1

-- no debconf information



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