[tahoe-lafs-trac-stream] [tahoe-lafs] #1991: cloud backend fails with DataUnavailable when uploading+downloading a 10 GB file

[tahoe-lafs]

#1991: cloud backend fails with DataUnavailable when uploading+downloading a 10 GB
file
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     Reporter:  daira    |      Owner:  daira
         Type:  defect   |     Status:  new
     Priority:  normal   |  Milestone:  undecided
    Component:  code-    |    Version:  1.10.0
  storage                |   Keywords:  DataUnavailable error large cloud-
   Resolution:           |  backend immutable upload download
Launchpad Bug:           |
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Comment (by daira):

 Note that the {{{used_space}}} in the cloud backend is 10016777607, but
 the requested ranges go up to 10025165837. (The ranges are data offsets so
 they exclude the 12-byte immutable header.) The {{{used_space}}} passed to
 the disk backend for an upload of the same share is 10025166838.

 Next step is to determine whether the share got truncated as stored in the
 cloud, or whether it was stored correctly but the end can't be read.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1991#comment:1>
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