gpdeletesystem
Deletes a Greengage DB system that was initialized using gpinitsystem.
Synopsis
gpdeletesystem
[ -d <master_data_directory> ]
[ -B <parallel_processes> ]
[ -f ]
[ -l <logfile_directory> ]
[ -D ]
gpdeletesystem -?
gpdeletesystem -vDescription
The gpdeletesystem utility performs the following actions:
-
Stops all
postgresprocesses (the segment instances and master instance). -
Deletes all data directories.
Before running gpdeletesystem:
-
Move any backup files out of the master and segment data directories.
-
Make sure that Greengage DB is running.
-
If you are currently in a segment data directory, change directory to another location. The utility fails with an error when run from within a segment data directory.
This utility will not uninstall the Greengage DB software.
Options
- -d <master_data_directory>
-
Specify the master host data directory. If this option is not specified, the setting for the environment variable MASTER_DATA_DIRECTORY is used. If this option is specified, it overrides any setting of
MASTER_DATA_DIRECTORY. Ifmaster_data_directorycannot be determined, the utility returns an error. - -B <parallel_processes>
-
The number of segments to delete in parallel. If not specified, the utility will start up to 60 parallel processes depending on how many segment instances it needs to delete.
- -f
-
Force a delete even if backup files are found in the data directories. The default is to not delete Greengage DB instances if backup files are present.
- -l <logfile_directory>
-
The directory to write the log file. Defaults to ~/gpAdminLogs.
- -D
-
Set logging level to debug.
- -?
-
Display help.
- -v
-
Display the version, status, last updated date, and checksum of this utility.
Examples
Delete a Greengage DB system:
$ gpdeletesystem -d /data1/master/gpseg-1Delete a Greengage DB system even if backup files are present:
$ gpdeletesystem -d /data1/master/gpseg-1 -f