[tahoe-lafs-trac-stream] [tahoe-lafs] #1641: fix regressions in convergent uncoordinated write detection

[tahoe-lafs]

#1641: fix regressions in convergent uncoordinated write detection
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     Reporter:  kevan    |      Owner:  nobody
         Type:  defect   |     Status:  new
     Priority:  major    |  Milestone:  undecided
    Component:  unknown  |    Version:  1.9.0
   Resolution:           |   Keywords:
Launchpad Bug:           |
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Comment (by zooko):

 > The practical impact of the first regression is that SDMF publish
 operations are less able to figure out when they need to abort a publish
 and try again after another map update.

 When does this situation arise? And what happens in this situation, with
 the current 1.9.0 version, that isn't good?

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1641#comment:3>
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