Creating a Data Storage Area on the Master Host
A data storage area is required on the Greenplum Database master host to store Greenplum Database system data such as catalog data and other system metadata.
To create the data directory location on the master
The data directory location on the master is different than those on the segments. The master does not store any user data, only the system catalog tables and system metadata are stored on the master instance, therefore you do not need to designate as much storage space as on the segments.
- Create or choose a directory that will serve as your master data
storage area. This directory should have sufficient disk space for your data and be
owned by the gpadmin user and group. For example, run the following
commands as root:
# mkdir /data/master
- Change ownership of this directory to the gpadmin
user. For example:
# chown gpadmin /data/master
- Using gpssh, create the master data directory location on your
standby master as well. For
example:
# source /usr/local/greenplum-db-4.3.x.x/greenplum_path.sh # gpssh -h smdw -e 'mkdir /data/master' # gpssh -h smdw -e 'chown gpadmin /data/master'