db_checkpoint [-1Vv] [-h home] [-k kbytes] [-L file] [-P password] [-p min]Description
The db_checkpoint utility is a daemon process that monitors the database log, and periodically calls DB_ENV->txn_checkpoint to checkpoint it.
The options are as follows:
When the -1 flag is specified, the db_checkpoint utility will checkpoint the log even if unable to find an existing database environment. This functionality is useful when upgrading database environments from one version of Berkeley DB to another.
This file will be removed if the db_checkpoint utility exits gracefully.db_checkpoint: ### Wed Jun 15 01:23:45 EDT 1995
At least one of the -1, -k, and -p options must be specified.
The db_checkpoint utility uses a Berkeley DB environment (as described for the -h option, the environment variable DB_HOME, or because the utility was run in a directory containing a Berkeley DB environment). In order to avoid environment corruption when using a Berkeley DB environment, db_checkpoint should always be given the chance to detach from the environment and exit gracefully. To cause db_checkpoint to release all environment resources and exit cleanly, send it an interrupt signal (SIGINT).
The db_checkpoint utility does not attempt to create the Berkeley DB shared memory regions if they do not already exist. The application that creates the region should be started first, and once the region is created, the db_checkpoint utility should be started.
The DB_ENV->txn_checkpoint method is the underlying method used by the db_checkpoint utility. See the db_checkpoint utility source code for an example of using DB_ENV->txn_checkpoint in a IEEE/ANSI Std 1003.1 (POSIX) environment.
The db_checkpoint utility exits 0 on success, and >0 if an error occurs.
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