[tahoe-lafs-trac-stream] [tahoe-lafs] #393: mutable: implement MDMF

[tahoe-lafs]

#393: mutable: implement MDMF
-------------------------+-------------------------------------------------
     Reporter:  warner   |      Owner:  zooko
         Type:           |     Status:  new
  enhancement            |  Milestone:  1.9.0
     Priority:  major    |    Version:  1.0.0
    Component:  code-    |   Keywords:  newcaps performance random-access
  mutable                |  privacy gsoc mdmf mutable backward-
   Resolution:           |  compatibility forward-compatibility review-
Launchpad Bug:           |  needed
-------------------------+-------------------------------------------------

Comment (by davidsarah):

 Replying to [comment:148 davidsarah]:
 > Replying to [comment:147 zooko]:
 > > Kevan has caught some places which say "if the file is mutable, load
 all of its contents into RAM", for example in
 20110802021207-b8d28-b0c006c43f8efc1c3d89484ed7d6ff037f07774a
 {{{GeneralSFTPFile._close()}}}. This worked in Tahoe-LAFS <= v1.8, because
 mutable files were necessarily smaller than RAM, but this assumption is no
 longer valid in Tahoe-LAFS >= v1.9.
 >
 > [source:src/allmydata/frontends/sftpd.py at 5179#L813
 GeneralSFTPFile._close] does:
 > {{{
 > self.filenode.overwrite(MutableFileHandle(self.consumer.get_file()))
 > }}}

 Oh, you meant that Kevan fixed it in this case. Sorry for being dense.

-- 
Ticket URL: <http://tahoe-lafs.org/trac/tahoe-lafs/ticket/393#comment:150>
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