DatabaseError

[Alberto Aldegheri]

While using Synapse I get this error, and I think it's ZG-only related :)

Remote Exception invoking org.gnome.zeitgeist.Index.Search() on /org/gnome/zeitgeist/index/activity at name org.gnome.zeitgeist.Engine: org.freedesktop.DBus.Python.xapian.DatabaseError: Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/dbus/service.py", line 702, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/share/zeitgeist/_zeitgeist/engine/extensions/fts.py", line 123, in Search
    offset, count, result_type)
  File "/usr/share/zeitgeist/_zeitgeist/engine/extensions/fts.py", line 255, in search
    hits = self._enquire.get_mset (offset, raw_maxhits)
DatabaseError: Error reading block 4279174522: got end of file

[Mikkel Kamstrup Erlandsen (kamstrup)]

Apparently the Xapian index of the Zeitgeist FTS extension got corrupted. Do you have any contextual information as to how that could have happended. Fx. a flaky disk, power loss to the computer, or is your system in any way non-conventional? Pretty much any piece of information you can come up with would be helpful (also if you believe you computer to be in perfect working order).

[Alberto Aldegheri (albyrock87)]

I'm a Synapse developer, I was only testing Synapse..
I compiled my working Synapse branch (as usually) and while searching, ZG returns that error.

I can upload some files if you need them.

I can say that my disk is safe, no power loss, and I use a standard linux Mint 10.

I assume that deleting the fts index I can fix this, but well, it's a workaround not a fix..

[Mikkel Kamstrup Erlandsen (kamstrup)]

If you kill Zeitgeist, delete the fts.index folder and restart
Zeitgeist everything should be rebuild fine and dandy. But as you say,
that's just a workaround.

I'm honestly really puzzled how this can happen as Xapian indexes
should be very robust. I'll try and look into writing some stress
tester for the FTS extension and see if I can shake out a race
condition or something...