[gpadmin@gw_mdw1 ~]$ gpexpand -f seg_hosts -D test

20190327:23:18:01:007122 gpexpand:gw_mdw1:gpadmin-[INFO]:-local Greenplum Version: 'postgres (Greenplum Database) 4.3.1.0 build 6'

20190327:23:18:01:007122 gpexpand:gw_mdw1:gpadmin-[INFO]:-master Greenplum Version: 'PostgreSQL 8.2.15 (Greenplum Database 4.3.1.0 build 6) on x86_64-unknown-linux-gnu, compiled by GCC gcc (GCC) 4.4.2 compiled on Jun 11 2014 17:23:40'

20190327:23:18:01:007122 gpexpand:gw_mdw1:gpadmin-[INFO]:-Querying gpexpand schema for current expansion state



System Expansion is used to add segments to an existing GPDB array.

gpexpand did not detect a System Expansion that is in progress.



Before initiating a System Expansion, you need to provision and burn-in

the new hardware.  Please be sure to run gpcheckperf/gpcheckos to make

sure the new hardware is working properly.



Please refer to the Admin Guide for more information.



Would you like to initiate a new System Expansion Yy|Nn (default=N):

> y            <------确认添加



How many new primary segments per host do you want to add? (default=0):

> 1            <------每台机器上添加1个计算节点

Enter new primary data directory 1:

> /data/primary    <------增加的计算节点存放的目录



Generating configuration file...



20190327:23:19:03:007122 gpexpand:gw_mdw1:gpadmin-[INFO]:-Generating input file...



Input configuration files were written to 'gpexpand_inputfile_20190327_231903' and 'None'.

Please review the file and make sure that it is correct then re-run

with: gpexpand -i gpexpand_inputfile_20190327_231903 -D test

                

20190327:23:19:03:007122 gpexpand:gw_mdw1:gpadmin-[INFO]:-Exiting...

[gpadmin@gw_mdw1 ~]$ gpexpand -i gpexpand_inputfile_20190327_231903 -D test

20190327:23:20:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-local Greenplum Version: 'postgres (Greenplum Database) 4.3.1.0 build 6'

20190327:23:20:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-master Greenplum Version: 'PostgreSQL 8.2.15 (Greenplum Database 4.3.1.0 build 6) on x86_64-unknown-linux-gnu, compiled by GCC gcc (GCC) 4.4.2 compiled on Jun 11 2014 17:23:40'

.......（省略信息）

20190327:23:22:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-************************************************

20190327:23:22:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-Initialization of the system expansion complete.

20190327:23:22:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-To begin table expansion onto the new segments

20190327:23:22:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-rerun gpexpand

20190327:23:22:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-************************************************

20190327:23:22:19:007227 gpexpand:gw_mdw1:gpadmin-[INFO]:-Exiting...

[gpadmin@gw_mdw1 ~]$ gpexpand -a -d 1:00:00 -D test

[gpadmin@gw_mdw1 ~]$ cat seg_hosts 

gw_sdw1

gw_sdw2

gw_sdw3

[gpadmin@gw_mdw1 ~]$ gpexpand -f seg_hosts -D test

[gpadmin@gw_mdw1 ~]$ gpexpand -i gpexpand_inputfile_20190328_014748 -D test

20190328:23:50:44:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-local Greenplum Version: 'postgres (Greenplum Database) 4.3.1.0 build 6'

20190328:23:50:44:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-master Greenplum Version: 'PostgreSQL 8.2.15 (Greenplum Database 4.3.1.0 build 6) on x86_64-unknown-linux-gnu, compiled by GCC gcc (GCC) 4.4.2 compiled on Jun 11 2014 17:23:40'

....(忽略信息)

20190328:23:54:59:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-Starting Greenplum Database

20190328:23:55:32:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-************************************************

20190328:23:55:32:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-Initialization of the system expansion complete.

20190328:23:55:32:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-To begin table expansion onto the new segments

20190328:23:55:32:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-rerun gpexpand

20190328:23:55:32:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-************************************************

20190328:23:55:32:001498 gpexpand:gw_mdw1:gpadmin-[INFO]:-Exiting...

[gpadmin@gw_mdw1 ~]$ gpexpand -a -d 1:00:00 -D test

20190329:00:00:56:002723 gpexpand:gw_mdw1:gpadmin-[INFO]:-local Greenplum Version: 'postgres (Greenplum Database) 4.3.1.0 build 6'

20190329:00:00:56:002723 gpexpand:gw_mdw1:gpadmin-[INFO]:-master Greenplum Version: 'PostgreSQL 8.2.15 (Greenplum Database 4.3.1.0 build 6) on x86_64-unknown-linux-gnu, compiled by GCC gcc (GCC) 4.4.2 compiled on Jun 11 2014 17:23:40'

20190329:00:00:56:002723 gpexpand:gw_mdw1:gpadmin-[INFO]:-Querying gpexpand schema for current expansion state

20190329:00:01:03:002723 gpexpand:gw_mdw1:gpadmin-[INFO]:-EXPANSION COMPLETED SUCCESSFULLY

20190329:00:01:03:002723 gpexpand:gw_mdw1:gpadmin-[INFO]:-Exiting...

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