Changes

* Locks *''cannot be synchronized* '' between BaseX instances that run in different JVMs. If concurrent write operations are to be performed, we generally recommend working with the client/server or the HTTP architecture .* An *''unexpected abort* '' of the server during a transaction, caused by a hardware failure or power cut, may lead to an inconsistent database state if a transaction was active at shutdown time. So it is advisable to use the [[Commands#CREATE BACKUP|BACKUP]] command to regularly backup your database. If the worst case occurs, you can try the [[Commands#INSPECT|INSPECT]] command to check if your database has obvious inconsistencies, and use [[Commands#RESTORE|RESTORE]] to restore the last backed up version of the database.