[tahoe-dev] [tahoe-lafs] #778: "shares of happiness" is the wrong measure; "servers of happiness" is better

tahoe-lafs trac at allmydata.org
Mon Aug 17 12:46:31 UTC 2009


#778: "shares of happiness" is the wrong measure; "servers of happiness" is
better
--------------------------------+-------------------------------------------
 Reporter:  zooko               |           Owner:           
     Type:  defect              |          Status:  new      
 Priority:  critical            |       Milestone:  undecided
Component:  code-peerselection  |         Version:  1.4.1    
 Keywords:  reliability         |   Launchpad_bug:           
--------------------------------+-------------------------------------------

Comment(by terrell):

 What is the problem/shortcoming with forcing {{{k<=happy<=m}}}?

 And make the error message simply state that this has to be true for Tahoe
 to succeed?

 Document some easily-expected example settings and ramifications:

 {{{k=3, happy=7, m=10}}} -- default

 {{{k=1, happy=1, m=X}}} -- not recommended, no redundancy

 {{{k=2, happy=2, m=X}}} -- friendnet, backup guaranteed (minimal
 protection)

 {{{k=3, happy=3, m=X}}} -- friendnet, backup guaranteed (better
 protection)

 etc...

-- 
Ticket URL: <http://allmydata.org/trac/tahoe/ticket/778#comment:20>
tahoe-lafs <http://allmydata.org>
secure decentralized file storage grid


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