[tahoe-lafs-trac-stream] [Tahoe-LAFS] #2285: multi backup error

[Tahoe-LAFS]

#2285: multi backup error
---------------------+---------------------------
 Reporter:  dawuud   |          Owner:  daira
     Type:  defect   |         Status:  new
 Priority:  normal   |      Milestone:  undecided
Component:  unknown  |        Version:  1.10.0
 Keywords:           |  Launchpad Bug:
---------------------+---------------------------
 When performing two backups at once (tahoe backup) one of them crashed
 with a stack traceback ending in this error:
 OperationalError: database is locked

 I was running tahoe-lafs in Tails from wheezy-backports :

 $ tahoe --version
 allmydata-tahoe: 1.10.0
 foolscap: 0.6.4
 pycryptopp: 0.6.0.1206569328141510525648634803928199668821045408958
 zfec: 1.4.5
 Twisted: 12.0.0
 Nevow: 0.10.0
 zope.interface: unknown
 python: 2.7.3
 platform: Linux-debian_7.6-x86_64-32bit_ELF
 pyOpenSSL: 0.13
 simplejson: 2.5.2
 pycrypto: 2.6
 pyasn1: unknown
 mock: 0.8.0
 setuptools: 0.6 [distribute]



 Traceback (most recent call last):
   File "/usr/lib/python2.7/dist-packages/allmydata/scripts/runner.py",
 line 156, in run
     rc = runner(sys.argv[1:], install_node_control=install_node_control)
   File "/usr/lib/python2.7/dist-packages/allmydata/scripts/runner.py",
 line 141, in runner
     rc = cli.dispatch[command](so)
   File "/usr/lib/python2.7/dist-packages/allmydata/scripts/cli.py", line
 574, in backup
     rc = tahoe_backup.backup(options)
   File "/usr/lib/python2.7/dist-
 packages/allmydata/scripts/tahoe_backup.py", line 325, in backup
     return bu.run()
   File "/usr/lib/python2.7/dist-
 packages/allmydata/scripts/tahoe_backup.py", line 118, in run
     new_backup_dircap = self.process(options.from_dir)
   File "/usr/lib/python2.7/dist-
 packages/allmydata/scripts/tahoe_backup.py", line 188, in process
     childcap = self.process(childpath)
   File "/usr/lib/python2.7/dist-
 packages/allmydata/scripts/tahoe_backup.py", line 188, in process
     childcap = self.process(childpath)
   File "/usr/lib/python2.7/dist-
 packages/allmydata/scripts/tahoe_backup.py", line 188, in process
     childcap = self.process(childpath)
   File "/usr/lib/python2.7/dist-
 packages/allmydata/scripts/tahoe_backup.py", line 194, in process
     childcap, metadata = self.upload(childpath)
   File "/usr/lib/python2.7/dist-
 packages/allmydata/scripts/tahoe_backup.py", line 313, in upload
     bdb_results.did_upload(filecap)
   File "/usr/lib/python2.7/dist-packages/allmydata/scripts/backupdb.py",
 line 122, in did_upload
     self.mtime, self.ctime, self.size)
   File "/usr/lib/python2.7/dist-packages/allmydata/scripts/backupdb.py",
 line 264, in did_upload_file
     fileid = self.get_or_allocate_fileid_for_cap(filecap)
   File "/usr/lib/python2.7/dist-packages/allmydata/scripts/backupdb.py",
 line 256, in get_or_allocate_fileid_for_cap
     c.execute("SELECT fileid FROM caps WHERE filecap=?", (filecap,))
 OperationalError: database is locked

--
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2285>
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