pdf1.wikimedia.org

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The pdf1.wikimedia.org, pdf2.wikimedia.org and pdf3.wikimedia.org servers used to run PediaPress / mwlib software for Collection/Book tool. It was shut down on 2014-10-03 in favour of OCG.

Until rt 1100 is resolved the most up to date documentation is on the PediaPress Wiki

Hardware

This currently resides on pdf1

Software

Python mini web server on port 8080 + Python backend
- mwlib -> backend libraries
- mwlib.rl -> PDF output tool + mw-serve mini-server
swap-watchdog to trigger reboot if/when swap death occurs from memory leak

Usage

Starting initial testing end of May 2008

Notes

May need some manual cleanup etc.

Setup / Recovery

Dependencies:

apt-get install \
  build-essential \
  python-imaging python-dev python-flup python-setuptools python-simplejson \
  subversion mercurial \
  re2c \
  tetex-bin tetex-extra ploticus \
  mediawiki-math

Add the user mwlib.  This is what you should run the cron job and service under.


Init script:

Get: http://svn.wikimedia.org/svnroot/mediawiki/trunk/tools/mw-serve/mw-serve.sh
Put it in /etc/init.d/mw-serve
Set up appropriate S* and K* aliases in /etc/rc.d/*:

cd /etc/rc0.d
ln -s ../init.d/mw-serve K25mw-serve
chmod 777 K25mw-serve
cd /etc/rc1.d
ln -s ../init.d/mw-serve K25mw-serve
chmod 777 K25mw-serve
cd /etc/rc2.d
ln -s ../init.d/mw-serve S25mw-serve
chmod 777 S25mw-serve
cd /etc/rc3.d
ln -s ../init.d/mw-serve S25mw-serve
chmod 777 S25mw-serve
cd /etc/rc4.d
ln -s ../init.d/mw-serve S25mw-serve
chmod 777 S25mw-serve
cd /etc/rc5.d
ln -s ../init.d/mw-serve S25mw-serve
chmod 777 S25mw-serve
cd /etc/rc6.d
ln -s ../init.d/mw-serve K25mw-serve
chmod 777 K25mw-serve

DNS setup:
  pdf1.wikimedia.org -> pdf1 (or whatever server is running the service.)

mwlib stuff:

Set up directories for the cache and log files:
  mkdir /opt/mwlib
  mkdir /opt/mwlib/var
  mkdir /opt/mwlib/var/log
  mkdir /opt/mwlib/var/run
  mkdir /opt/mwlib/var/cache
  mkdir /opt/mwlib/var/cache/pdfserver
  mkdir /opt/mwlib/var/cache/python-eggs
  mkdir /opt/mwlib/var/cache/pdfserver/
  chown -R mwlib /opt/mwlib/
  chgrp -R mwlib /opt/mwlib/

Install the mwlib release version (into /usr):

  easy_install mwlib
  easy_install mwlib.rl
  easy_install mwlib.ext

Add a cronjob for the cache clearing in /etc/cron.hourly
   touch mw-serve
   vim mw-serve
   Insert the following into the file:
      #!/bin/sh
      su mwlib -c "mw-serve --clean-cache 24 --cache-dir '/opt/mwlib/var/cache/pdfserver/'" www-data >> /opt/mwlib/var/log/cache-cleaning 

Add log rotation job
   '''<- add this info'''

Install [[swap-watchdog]] script into /usr/local/bin
Add to /etc/rc.local script:
   /usr/local/bin/swap-watchdog &

Upgrading mwlib

We're currently running release versions of the mwlib code, which means they're all nicely packaged up for us and can be installed and upgraded via the Python 'easy_install' tool:

  /etc/init.d/mw-serve stop && easy_install -U mwlib && easy_install -U mwlib.rl && easy_install -U mwlib.ext && /etc/init.d/mw-serve start

Software reference

http://code.pediapress.com/wiki/report

Starting the server

To start:

/etc/init.d/mw-serve start

To stop:

/etc/init.d/mw-serve stop

To restart:

/etc/init.d/mw-serve restart

Should work. :D

Logfiles and pidfiles in /opt/mwlib/var/* need to be writable by www-data, which the daemon gets run as.

Maintenance and cleanup

Currently the daemon doesn't appear to do live garbage collection of cached output; it can be done with a batch script running mw-serve and some extra options. This isn't quite set up yet, so be warned the server may run out of space (bad!)

Also the logs should be rotated...