db_checkpoint

       db_checkpoint [-v] [-h home] [-k kbytes] [-L file] [-p min]

DESCRIPTION

       The   db_checkpoint  utility  is  a  daemon  process  that
       monitors  the  database   log   and   periodically   calls
       txn_checkpoint(3) to checkpoint to the database.

       The options are as follows:

       -h   Specify a home directory for the database.

       -k   Checkpoint  the  database  at least as often as every
            kbytes of log file are written.

       -L   Log the execution of the db_checkpoint utility to the
            specified file in the following format, where ``###''
            is the process ID, and  the  date  is  the  time  the
            utility starting running.

            db_checkpoint: ### Wed Jun 15 01:23:45 EDT 1995

            This  file  will  be  removed  if  the  db_checkpoint
            utility exits gracefully.

       -p   Checkpoint the database at least every min minutes.

       -v   Write the time of each  checkpoint  to  the  standard
            output.

       At least one of the -k and -p options must be specified.

       The  db_checkpoint  utility  attaches  to DB shared memory
       regions.  In order to avoid region corruption,  it  should
       always  be given the chance to detach and exit gracefully.
       To cause db_checkpoint to clean up after itself and  exit,
       send it an interrupt signal (SIGINT).

       The db_checkpoint utility exits 0 on success, and >0 if an
       error occurs.

ENVIRONMENT VARIABLES

       The following environment variables affect  the  execution
       of db_checkpoint:

       DB_HOME
            If the -h option is not specified and the environment
            variable DB_HOME is set, it is used as  the  path  of
            the database home, as described in db_appinit(3).

SEE ALSO

       The  DB  library  is  a family of groups of functions that
       provides a modular programming interface  to  transactions
       and  record-oriented  file  access.   The library includes
       support for transactions, locking, logging and  file  page
       caching,  as well as various indexed access methods.  Many
       of the functional groups  (e.g.,  the  file  page  caching
       functions)   are   useful  independent  of  the  other  DB
       functions, although some functional groups are  explicitly
       based  on  other functional groups (e.g., transactions and
       logging).  For a general description of  the  DB  package,
       see db_intro(3).

       db_archive(1), db_checkpoint(1), db_deadlock(1), db_dump(1),
       db_load(1), db_recover(1), db_stat(1), db_intro(3),
       db_appinit(3), db_cursor(3), db_dbm(3), db_internal(3),
       db_lock(3), db_log(3), db_mpool(3), db_open(3), db_thread(3),
       db_txn(3)