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All the Perl that's Practical to Extract and Report

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  • Thanks a lot for this, Leon. I'm so happy I don't have to implement this on my own now.
  • Why Exponential and not Fibonacci? It probably won't matter in real life (since it will only take a single retry), but I think Fibonacci is the generally preferred algorithm. Exponential gets unreasonable after just a few iterations. (16 seconds, then 32 seconds?)
    • Mostly because it's the one Amazon recommend. Many retries aren't often necessary, Amazon S3 for Science Grids: a Viable Solution (PDF) [] mentions:

      We have observed an availability rate of 99.03% after the original download attempt, 99.55% after the first retry and a full 100% availability after two retries. Additional retries were never needed during the observed period. These results are convergent with Amazon's stated 99.99% availability target.