[tahoe-lafs-trac-stream] [tahoe-lafs] #549: MODE_WRITE mapupdate: maybe increase epsilon to handle large batches of new servers better

[tahoe-lafs]

#549: MODE_WRITE mapupdate: maybe increase epsilon to handle large batches of new
servers better
-------------------------+-------------------------------------------------
     Reporter:  warner   |      Owner:  bazuka
         Type:  defect   |     Status:  assigned
     Priority:  major    |  Milestone:  soon
    Component:  code-    |    Version:  1.2.0
  mutable                |   Keywords:  availability upload easy mutable
   Resolution:           |  ucwe test-needed
Launchpad Bug:           |
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Comment (by zooko):

 Replying to [comment:11 daira]:
 > Hmm, it appears that self.EPSILON is already not a constant (and there's
 some dubious code around [source:src/allmydata/mutable/servermap.py#L491]
 that sets k and N based on assuming encoding defaults of 3/10, which I
 think should never be reached).

 Yes,
 [source:src/allmydata/mutable/servermap.py?annotate=blame&rev=4751a468408d8cc8c0e7d8165237d128741ce08a#L491
 that code] should be removed (to remove it is the goal of ticket #1847).
 That its absence would make it easier for us to evaluate this patch is a
 good example of why #1847 would be useful.

-- 
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/549#comment:12>
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