Getting fatal error

Question

Could you please help me and explain: in what circumstances do i get "DB_RUNRECOVERY: Fatal error, run database recovery" while using DB::put method?
I can't figure it out... Some kind of overflowing happens or something like that. So what could it be? Or where can i find information about it?

Answer 1

Hi,
There exists a class of errors that Berkeley DB considers fatal to an entire Berkeley DB environment. An example of this type of error is a corrupted database page. The only way to recover from these failures is to have all threads of control exit the Berkeley DB environment, run recovery of the environment, and re-enter Berkeley DB. (It is not strictly necessary that the processes exit, although that is the only way to recover system resources, such as file descriptors and memory, allocated by Berkeley DB.)
When this type of error is encountered, the error value DB_RUNRECOVERY is returned. This error can be returned by any Berkeley DB interface. Once DB_RUNRECOVERY is returned by any interface, it will be returned from all subsequent Berkeley DB calls made by any threads of control participating in the environment.
Applications can handle such fatal errors in one of two ways: first, by checking for DB_RUNRECOVERY as part of their normal Berkeley DB error return checking, similarly to DB_LOCK_DEADLOCK or any other error. Alternatively, applications can specify a fatal-error callback function using the DB_ENV->set_event_notify method. Applications with no cleanup processing of their own should simply exit from the callback function.
Recovery procedures: http://www.oracle.com/technology/documentation/berkeley-db/db/ref/transapp/recovery.html
Regards,
Bogdan Coman