Dear CouchDB Community, After restarting our productive Ubuntu 10.10 server running the official Ubuntu CouchDB 1.0.1 package we observed a data loss in our database.
Before restarting the server the application using the database worked without any problems. After restarting the server some recent modifications were missing from the system and we started investigating the problems: The last change time of the CouchDB database file dated back about two months. A hex dump of the CouchDB file showed no changes after this point of time. Regular database backups that where created by replicating into another database contained more recent data, just the main database seemed to have stopped recording changes to disc after 2011-08-03. All database files are stored on the same encrypted LVM volume. The problem sounds a lot like writer process bug in 1.0.0: All data seems to be kept in RAM, but never written to disc. However, we verified that Ubuntu uses the patched code and the conditions that could cause the problems in version 1.0.0 do not even occur in our system. So far we were not able to reproduce the behavior. Thank you for reading and we appreciate any help. Kind Regards René Brüntrup
