[tahoe-dev] [tahoe-lafs] #746: Tahoe operations fail with "no attribute _writekey" exception

[tahoe-lafs]

#746: Tahoe operations fail with "no attribute _writekey" exception
-----------------------+----------------------------------------------------
 Reporter:  [4-tea-2]  |           Owner:  nobody   
     Type:  defect     |          Status:  new      
 Priority:  critical   |       Milestone:  undecided
Component:  unknown    |         Version:  1.4.1    
 Keywords:             |   Launchpad_bug:           
-----------------------+----------------------------------------------------
 My weekly cronjobs ("deep-check --repair" and "backup") started failing
 two days ago. Upgrading to the latest Debian package (allmydata-
 tahoe_1.4.1-r3916_all.deb) did not help, the problem persists.

 Example output from the cli (this is from allmydata-tahoe_1.4.1_all.deb,
 ie. pre-update):

 $ tahoe deep-check --repair media:
 ERROR: AttributeError(MutableFileNode instance has no attribute
 '_writekey')
 [Failure instance: Traceback: <type 'exceptions.AttributeError'>:
 MutableFileNode instance has no attribute '_writekey'
 /usr/lib/python2.5/site-
 packages/twisted/internet/base.py:705:runUntilCurrent
 /usr/lib/python2.5/site-packages/foolscap/eventual.py:26:_turn
 /usr/lib/python2.5/site-packages/twisted/internet/defer.py:243:callback
 /usr/lib/python2.5/site-
 packages/twisted/internet/defer.py:312:_startRunCallbacks
 --- <exception caught here> ---
 /usr/lib/python2.5/site-
 packages/twisted/internet/defer.py:328:_runCallbacks
 /usr/lib/python2.5/site-
 packages/allmydata/mutable/checker.py:301:_maybe_repair
 /usr/lib/python2.5/site-packages/allmydata/mutable/filenode.py:263:repair
 /usr/lib/python2.5/site-packages/allmydata/mutable/repairer.py:89:start
 /usr/lib/python2.5/site-
 packages/allmydata/mutable/filenode.py:172:get_writekey

 Output from allmydata-tahoe_1.4.1-r3916_all.deb is identical, up to the
 line numbers.

 Running "deepcheck-and-repair" from the WUI results in the same exception,
 yet no incident report is created. I'll attach the HTML output of the
 result page (after clicking "reload").

-- 
Ticket URL: <http://allmydata.org/trac/tahoe/ticket/746>
tahoe-lafs <http://allmydata.org>
secure decentralized file storage grid