Find_id_by_contents crashing

I’ve got an index with over 11M entries. Both server and clients are
running Ferret gem 0.11.4.

If I do “UserMessage.find_id_by_contents(‘kenn*’, :limit => 49)”, it
works fine. If I do " UserMessage.find_id_by_contents(‘kenn*’, :limit
=> 50)", it throws an exception, like this:

UserMessage.find_id_by_contents ‘kenn*’, :limit => 50
IOError: IO Error occured at <except.c>:93 in xraise
Error occured in fs_store.c:293 - fsi_seek_i
seeking pos -1473943740:

    from (druby://

[]' from (druby:// /usr/lib/ruby/gems/1.8/gems/ferret-0.11.4/lib/ferret/index.rb:411:in []’
from (druby://
/usr/lib/ruby/1.8/monitor.rb:229:in synchronize' from (druby:// /usr/lib/ruby/gems/1.8/gems/ferret-0.11.4/lib/ferret/index.rb:403:in []’
… yada yada yada …

Any idea what I can do to recover from this? Rebuilding this index
would take a LOOOOOOOOOOOOONG time :slight_smile: