One of the issues I came across while implmenting a checkpointing mechanism for the scoreboarding data in JKFlow was how to marshall and unmarshall the complex nested hash structures between checkpointing the data to disk and loading the checkpoints. I searched on the web for any useful modules for this purpose. One particularly useful resource I found was a chapter on object persistance in perl in the advanced perl programming book by O'Reilly http://www.unix.org.ua/orelly/perl/advprog/ch10_02.htm
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This chapter discusses two types of techniques:
- Streamed Data
- Record-Oriented Approach
Each type has its