Troubleshooting of Greenplum backups that are canceled mid-backup
If Greenplum backups are canceled mid-backup, the backup processes are left hanging. If the main Greenplum gpbackup process is terminated in mid-backup, the cleanup_plugin_for_backup calls cannot be made to the plug-in to complete the normal completion and shutdown of the backup. In this case the setup_plugin_for_backup processes hang that remain running on the segment hosts. These processes eventually end due to the configurable error_shutdown_timer setting in the nbgpbackup_config.yaml file. The default is 10 hours.