摘要：报错信息：ExecutionError: 'non-zero rc: 255' occured. Details: 'ssh -o 'StrictHostKeyChecking no' sdw2 ". /usr/local/greenplum-db/./greenplum_path.sh; $GPHOME/sbin/gpoperation.py"' cmd had rc=255 completed=True halted=False stdout='' stderr='ssh: connect to h 阅读全文