[tahoe-dev] MapReduce over Tahoe-LAFS slides from HadoopWorld

David-Sarah Hopwood david-sarah at jacaranda.org
Tue Oct 13 02:55:07 UTC 2009


David-Sarah Hopwood wrote:
> Zooko O'Whielacronx wrote:
>> Wow!  Check out these great slides from Aaron Cordova's talk about HadoopWorld!
>>
>> http://www.cloudera.com/sites/all/themes/cloudera/static/hw09/3%20%20-%202-30%20Aaron%20Cordova,%20BAH,%20HadoopWorldComplete.pdf
> 
> I notice that slide 10 ("Erasure Coding Overview"), when it says that
> "Up to n-k machines can fail, be compromised, or malicious without
> data loss", is assuming a property that would only actually be provided
> by the fix to <http://allmydata.org/trac/tahoe/ticket/778>.

... actually, not even then. I think that servers_of_happiness needs to
be equal to n for the statement on the slide to be correct -- is that right?

-- 
David-Sarah Hopwood  ⚥  http://davidsarah.livejournal.com




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