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last edited 3 years ago by cbearden

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To put citadel into rotation:

On citadel:

• Ensure that citadel is running the same code as cnx

  serverdiff (shell script)

• Point citadel's data at depot:

  sudo frontend.sh

• Check that the data redirection worked:

  check-servermode.sh

On cnx:

• Tell cnx to include citadel as a front end:

  rotation add citadel.cnx.rice.edu:8080

  sudo /etc/init.d/squid reload

On citadel:

• Verify that citadel is in rotation:

  tail -f /var/log/zope/cnx/Z2.log (watch for activity)

To return citadel to testing mode:

• Tell cnx to stop using citadel as a front end:

  rotation remove citadel.cnx.rice.edu:8080

  sudo /etc/init.d/squid reload

• Verify that citadel is out of rotation:

  tail -f /var/log/zope/cnx/Z2.log (watch for lack of activity)

• Point citadel's data at itself

  sudo testing.sh

• Check that the data redirection worked:

  check-servermode.sh

To roll out a change to cnx using citadel temporarily:

1. Be sure that citadel has no more than the desired changes active

   serverdiff (shell script)

2. Point citadel's data at depot:

   sudo frontend.sh

3. Check that the data redirection worked:

   check-servermode.sh

4. Tell cnx to use citadel as the only front end (log into cnx!):

   rotation set citadel.cnx.rice.edu:8080

   sudo /etc/init.d/squid reload

5. Verify that cnx is out of rotation:

   tail -f /var/log/squid/access.log (watch for activity)

   tail -f /var/log/zope/cnx/Z2.log (watch for lack of activity)

6. Make updates to cnx
7. Restart Zope (if necessary) and hit http://cnx.rice.edu:8080/ in a browser to absorb the first slow page load.
8. Have cnx use only itself as a front end again

   /usr/local/sbin/rotation set cnx.rice.edu:8080

   sudo /etc/init.d/squid reload

9. Return citadel to testing mode (and verify, if desired)

   sudo testing.sh