Plugin command to clean up a storage plugin after restore.
plugin_executable cleanup_plugin_for_restore plugin_config_file local_backup_dir scope
plugin_executable cleanup_plugin_for_restore plugin_config_file local_backup_dir scope contentID
gprestore invokes the cleanup_plugin_for_restore plugin command when a gprestore operation completes, both in success and failure cases. The scope argument specifies the execution scope. gprestore will invoke the command with each of the scope values.
The cleanup_plugin_for_restore implementation should perform the actions necessary to clean up the remote storage system after a restore. Clean up activities may include removing remote directories or temporary files created during the restore, disconnecting from the backup service, etc.
- The absolute path to the plugin configuration YAML file.
- The local directory on the Greenplum Database host (master and segments) from which
gprestore reads backup files.
- When scope is master, the local_backup_dir is the backup directory of the Greenplum Database master.
- When scope is segment, the local_backup_dir is the backup directory of a segment instance. The contentID identifies the segment instance.
- When the scope is segment_host, the local_backup_dir is an arbitrary backup directory on the host.
- The execution scope value indicates the host and number of times the plugin command is
run. scope can be one of these values:
- master - Run the plugin command once on the master host.
- segment_host - Run the plugin command once on each of the segment hosts.
- segment - Run the plugin command once for each active segment instance on the host running the segment instance. The contentID identifies the segment instance.
- The Greenplum Database hosts and segment instances are based on the Greenplum Database configuration when the back up was first initiated.
- The contentID of the Greenplum Database master or segment instance corresponding to
the scope. contentID is passed only when the scope
is master or segment.
- When scope is master, the contentID is -1.
- When scope is segment, the contentID is the content identifier of an active segment instance.
The cleanup_plugin_for_restore command must exit with a value of 0 on success, non-zero if an error occurs. In the case of a non-zero exit code, gprestore displays the contents of stderr to the user.