gpdeletesystem

Deletes a Greenplum Database system that was initialized using gpinitsystem.

Synopsis

gpdeletesystem [-d <master_data_directory>] [-B <parallel_processes>] 
   [-f] [-l <logfile_directory>] [-D]
gpdeletesystem -? 
gpdeletesystem -v

Description

The gpdeletesystem utility performs the following actions:

• Stop all postgres processes (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 Greenplum Database 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 Greenplum Database software.

Options

-d master_data_directory

Specifies 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. If master_data_directory cannot 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)

Force a delete even if backup files are found in the data directories. The default is to not delete Greenplum Database instances if backup files are present.

-l logfile_directory

The directory to write the log file. Defaults to ~/gpAdminLogs.

-D (debug)

Sets logging level to debug.

-? (help)

Displays the online help.

-v (show utility version)

Displays the version, status, last updated date, and check sum of this utility.

Examples

Delete a Greenplum Database system:

gpdeletesystem -d /gpdata/gp-1

Delete a Greenplum Database system even if backup files are present:

gpdeletesystem -d /gpdata/gp-1 -f

See Also

gpinitsystem