ORA-00327

Error: ORA-00327: log string of thread string, physical size string less than needed string

Causa: A log file has shrunk in size. This is likely to have been caused by a computer operator's mistake or an operating system error.

Acción: Restore the log file from backup. If a backup is not available, drop this log and re-create it. If the database was shut down cleanly, no further action should be required; otherwise, incomplete recovery may be required.