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>