bionic (1) pmempool-sync.1.gz

NAME

       pmempool-sync - Synchronize replicas or their parts within a pool set.

SYNOPSIS

              pmempool sync [options] <poolset_file>

       NOTE: Only the pool set file used to create the pool should be used for syncing the pool.

DESCRIPTION

       The pmempool sync command synchronizes data between replicas within a pool set.  It checks if metadata of
       all replicas in a pool set are consistent, i.e. all parts are healthy, and if any of  them  is  not,  the
       corrupted  or  missing  parts  are  recreated  and  filled  with  data  from one of the healthy replicas.
       Currently synchronizing data is allowed only for pmemobj pools (see libpmemobj(7)).

       If a pool set has the option SINGLEHDR or NOHDRS (see poolset(5)),  pmempool  sync  command  has  limited
       capability  of  checking  its metadata.  This is due to limited or no, respectively, internal metadata at
       the beginning of pool set parts in every replica when either of the options is used.  In that cases, only
       missing parts or the ones which cannot be opened are recreated.

   Available options:
       -d, --dry-run
              Enable  dry  run  mode.   In  this  mode  no  changes  are  applied,  only  check for viability of
              synchronization.

       -v, --verbose
              Increase verbosity level.

       -h, --help
              Display help message and exit.

SEE ALSO

       pmempool(1), libpmemblk(7), libpmemlog(7), libpmempool(7) and <http://pmem.io>