Assignment 33

Preparation for Recitation 18

The primary topic of today's recitation will be to finish the discussion of The Recovery Manager of the System R Database Manager and the issues raised in Appendix 10-A of the class notes.

Also read Chocolate to learn an interesting take on fail-soft design of complex systems. Compare the recommendations of this short paper with the instructions in the U. S. Navy Flight Manual:

If you are lost,

  • Climb
  • Conserve
  • Confess

Finally, read a relevant topic about the reliability of complex systems in Tracking the Blackout Bug by Kevin Poulson. It is especially interesting to compare what Poulson highlights with the actual recommendations of the original report. It isn't necessary to read all 238 pages of that report; the summary on pages 18 and 19 gives a pretty good high-level picture of what the rest of the report says.