华为高斯数据库（OpenGauss）管理常用命令

1.查看节点状态

[omm@openGauss2 local]$ gs_om -t status --detail#查看本机节点状态
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node      node_ip         port      instance                            state
-------------------------------------------------------------------------------------------------
1  openGauss1 192.168.50.32   15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  openGauss2 192.168.50.126  15400      6002 /opt/huawei/install/data/dn   S Standby Normal

[omm@openGauss2 local]$ gs_om -t status -h openGauss1 --detail #查看远程节点状态
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node      node_ip         port      instance                            state
-------------------------------------------------------------------------------------------------
1  openGauss1 192.168.50.32   15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  openGauss2 192.168.50.126  15400      6002 /opt/huawei/install/data/dn   S Standby Normal
 

2.启停OpenGauss

[omm@openGauss1 conf]$  gs_om -t start
Starting cluster.
=========================================
[SUCCESS] openGauss1
2022-07-20 13:57:08.343 62d809b2.1 [unknown] 139962140871744 [unknown] 0 dn_6001_6002 01000  0 [BACKEND] WARNING:  could not create any HA TCP/IP sockets
2022-07-20 13:57:08.344 62d809b2.1 [unknown] 139962140871744 [unknown] 0 dn_6001_6002 01000  0 [BACKEND] WARNING:  Failed to initialize the memory protect for g_instance.attr.attr_storage.cstore_buffers (1024 Mbytes) or shared memory (3300 Mbytes) is larger.
[SUCCESS] openGauss2
2022-07-20 13:59:13.222 62d80a30.1 [unknown] 140718970952768 [unknown] 0 dn_6001_6002 01000  0 [BACKEND] WARNING:  could not create any HA TCP/IP sockets
2022-07-20 13:59:13.283 62d80a30.1 [unknown] 140718970952768 [unknown] 0 dn_6001_6002 01000  0 [BACKEND] WARNING:  Failed to initialize the memory protect for g_instance.attr.attr_storage.cstore_buffers (1024 Mbytes) or shared memory (3300 Mbytes) is larger.
=========================================
Successfully started.
[omm@openGauss1 conf]$
 

[omm@openGauss1 conf]$ gs_om -t stop
Stopping cluster.
=========================================
Successfully stopped cluster.
=========================================
End stop cluster.

3. 主从节点的切换

[omm@openGauss2 local]$  gs_om -t status -h openGauss1 --detail
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node      node_ip         port      instance                            state
-------------------------------------------------------------------------------------------------
1  openGauss1 192.168.50.32   15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  openGauss2 192.168.50.126  15400      6002 /opt/huawei/install/data/dn   S Standby Normal
[omm@openGauss2 local]$ hostname
openGauss2
[omm@openGauss2 local]$  gs_ctl switchover -D /opt/huawei/install/data/dn  #切换命令 -D后面跟的是data dir
[2022-07-20 14:11:27.287][162666][][gs_ctl]: gs_ctl switchover ,datadir is /opt/huawei/install/data/dn
[2022-07-20 14:11:27.287][162666][][gs_ctl]: switchover term (1)
[2022-07-20 14:11:27.311][162666][][gs_ctl]: waiting for server to switchover...............
[2022-07-20 14:11:41.461][162666][][gs_ctl]: done
[2022-07-20 14:11:41.461][162666][][gs_ctl]: switchover completed (/opt/huawei/install/data/dn)
[omm@openGauss2 local]$ gs_om -t status -h openGauss1 --detail
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node      node_ip         port      instance                            state
-------------------------------------------------------------------------------------------------
1  openGauss1 192.168.50.32   15400      6001 /opt/huawei/install/data/dn   P Standby Normal
2  openGauss2 192.168.50.126  15400      6002 /opt/huawei/install/data/dn   S Primary Normal
[omm@openGauss2 local]$

4.检查实例状态

[omm@openGauss1 conf]$ gs_check -U omm -i CheckClusterState
Parsing the check items config file successfully
Distribute the context file to remote hosts successfully
Start to health check for the cluster. Total Items:1 Nodes:2

Checking...               [=========================] 1/1
Start to analysis the check result
CheckClusterState...........................OK
The item run on 2 nodes.  success: 2

Analysis the check result successfully
Success.        All check items run completed. Total:1   Success:1
For more information please refer to /opt/huawei/install/om/script/gspylib/inspection/output/CheckReport_2022072051473279604.tar.gz
[omm@openGauss1 conf]$

5.检查锁

[omm@openGauss1 conf]$ gsql -d postgres -p 15400

openGauss=# select * from pg_locks;
  locktype  | database | relation | page | tuple | bucket | virtualxid | transactionid | classid | objid | objsubid | virtualtransaction |       pid       |    sessionid    |      mode
  | granted | fastpath |      locktag      | global_sessionid
------------+----------+----------+------+-------+--------+------------+---------------+---------+-------+----------+--------------------+-----------------+-----------------+---------------
--+---------+----------+-------------------+------------------
 relation   |    15563 |    12010 |      |       |        |            |               |         |       |          | 2/23               | 139957245310720 | 139957245310720 | AccessShareLoc
k | t       | t        | 3ccb:2eea:0:0:0:0 | 0:0#0
 virtualxid |          |          |      |       |        | 2/23       |               |         |       |          | 2/23               | 139957245310720 | 139957245310720 | ExclusiveLock
  | t       | t        | 2:17:0:0:0:7      | 0:0#0
 virtualxid |          |          |      |       |        | 1/1        |               |         |       |          | 1/0                | 139957034346240 |                 | ExclusiveLock
  | t       | t        | 1:1:0:0:0:7       | 0:0#0
(3 rows)

openGauss=# SELECT * FROM pg_thread_wait_status WHERE wait_status = 'acquire lock'; #查询正在等待锁的SESSION
 node_name | db_name | thread_name | query_id | tid | sessionid | lwtid | psessionid | tlevel | smpid | wait_status | wait_event | locktag | lockmode | block_sessionid | global_sessionid
-----------+---------+-------------+----------+-----+-----------+-------+------------+--------+-------+-------------+------------+---------+----------+-----------------+------------------
(0 rows)

openGauss=#

6.查询当前数据库活动状态信息

openGauss=# SELECT count(*) FROM pg_stat_activity;
 count
-------
     1
(1 row)

openGauss=# SELECT backend_start,xact_start,query_start,state_change FROM pg_stat_activity;
         backend_start         |          xact_start           |          query_start          |         state_change
-------------------------------+-------------------------------+-------------------------------+-------------------------------
 2022-07-20 14:21:15.740564+00 | 2022-07-20 14:31:03.692873+00 | 2022-07-20 14:31:03.692873+00 | 2022-07-20 14:31:03.692876+00
(1 row)

openGauss=# SELECT * FROM pv_session_memory_detail() ORDER BY usedsize desc limit 10;
 sessid | threadid | contextname | level | parent | totalsize | freesize | usedsize
--------+----------+-------------+-------+--------+-----------+----------+----------
(0 rows)

7.查看表或是视图的字段信息

openGauss=# \d+ pg_stat_activity
                        View "pg_catalog.pg_stat_activity"
      Column      |           Type           | Modifiers | Storage  | Description
------------------+--------------------------+-----------+----------+-------------
 datid            | oid                      |           | plain    |
 datname          | name                     |           | plain    |
 pid              | bigint                   |           | plain    |
 sessionid        | bigint                   |           | plain    |
 usesysid         | oid                      |           | plain    |
 usename          | name                     |           | plain    |
 application_name | text                     |           | extended |
 client_addr      | inet                     |           | main     |
 client_hostname  | text                     |           | extended |
 client_port      | integer                  |           | plain    |
 backend_start    | timestamp with time zone |           | plain    |
 xact_start       | timestamp with time zone |           | plain    |
 query_start      | timestamp with time zone |           | plain    |
 state_change     | timestamp with time zone |           | plain    |
 waiting          | boolean                  |           | plain    |
 enqueue          | text                     |           | extended |
 state            | text                     |           | extended |
 resource_pool    | name                     |           | plain    |
 query_id         | bigint                   |           | plain    |
 query            | text                     |           | extended |
 connection_info  | text                     |           | extended |
 unique_sql_id    | bigint                   |           | plain    |
 trace_id         | text                     |           | extended |
View definition:
 SELECT s.datid, d.datname, s.pid, s.sessionid, s.usesysid,
    u.rolname AS usename, s.application_name, s.client_addr, s.client_hostname,
    s.client_port, s.backend_start, s.xact_start, s.query_start, s.state_change,
    s.waiting, s.enqueue, s.state,
        CASE
            WHEN s.srespool = 'unknown'::name THEN u.rolrespool
            ELSE s.srespool
        END AS resource_pool,
    s.query_id, s.query, s.connection_info, s.unique_sql_id, s.trace_id
   FROM pg_database d,
    pg_stat_get_activity_with_conninfo(NULL::bigint) s(datid, pid, sessionid, usesysid, application_name, state, query, waiting, xact_start, query_start, backend_start, state_change, client
_addr, client_hostname, client_port, enqueue, query_id, connection_info, srespool, global_sessionid, unique_sql_id, trace_id),
    pg_authid u
  WHERE s.datid = d.oid AND s.usesysid = u.oid;

8.查看当前数据库的版本

openGauss=#  SELECT version();
                                                                       version
------------------------------------------------------------------------------------------------------------------------------------------------------
 (openGauss 3.0.0 build 02c14696) compiled at 2022-04-01 18:12:19 commit 0 last mr   on x86_64-unknown-linux-gnu, compiled by g++ (GCC) 7.3.0, 64-bit
(1 row)

openGauss=#

9. 查看表的大小

openGauss=#  SELECT pg_table_size('pg_database');
 pg_table_size
---------------
         40960
(1 row)

10. 由于突然关机或是网络问题导致的Standby Need repair(WAL)，问题修复

[omm@openGauss1 cipher]$ gs_om -t status --detail
[   Cluster State   ]

cluster_state   : Degraded
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node      node_ip         port      instance                            state
-------------------------------------------------------------------------------------------------
1  openGauss1 192.168.50.32   15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  openGauss2 192.168.50.126  15400      6002 /opt/huawei/install/data/dn   S Standby Need repair(WAL)

[omm@openGauss2 log]$  gs_ctl build -D  /opt/huawei/install/data/dn #-D 后面跟的数据目录
[2022-07-21 02:36:04.082][58140][][gs_ctl]: gs_ctl incremental build ,datadir is /opt/huawei/install/data/dn
[2022-07-21 02:36:04.082][58140][][gs_ctl]: stop failed, killing gaussdb by force ...
[2022-07-21 02:36:04.082][58140][][gs_ctl]: command [ps c -eo pid,euid,cmd | grep gaussdb | grep -v grep | awk '{if($2 == curuid && $1!="-n") print "/proc/"$1"/cwd"}' curuid=`id -u`| xargs ls -l | awk '{if ($NF=="/opt/huawei/install/data/dn")  print $(NF-2)}' | awk -F/ '{print $3 }' | xargs kill -9 >/dev/null 2>&1 ] path: [/opt/huawei/install/data/dn]
[2022-07-21 02:36:04.090][58140][][gs_ctl]: server stopped
[2022-07-21 02:36:04.091][58140][][gs_ctl]: fopen build pid file "/opt/huawei/install/data/dn/gs_build.pid" success
[2022-07-21 02:36:04.091][58140][][gs_ctl]: fprintf build pid file "/opt/huawei/install/data/dn/gs_build.pid" success
[2022-07-21 02:36:04.091][58140][][gs_ctl]: fsync build pid file "/opt/huawei/install/data/dn/gs_build.pid" success
[2022-07-21 02:36:04.092][58140][dn_6001_6002][gs_ctl]: build connection to 192.168.50.32

................
[2022-07-21 02:37:40.539][59990][dn_6001_6002][gs_ctl]:  done
[2022-07-21 02:37:40.539][59990][dn_6001_6002][gs_ctl]: server started (/opt/huawei/install/data/dn)
[2022-07-21 02:37:40.539][59990][dn_6001_6002][gs_ctl]: fopen build pid file "/opt/huawei/install/data/dn/gs_build.pid" success
[2022-07-21 02:37:40.539][59990][dn_6001_6002][gs_ctl]: fprintf build pid file "/opt/huawei/install/data/dn/gs_build.pid" success
[2022-07-21 02:37:40.543][59990][dn_6001_6002][gs_ctl]: fsync build pid file "/opt/huawei/install/data/dn/gs_build.pid" success

[omm@openGauss2 log]$ gs_om -t status --detail
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node      node_ip         port      instance                            state
-------------------------------------------------------------------------------------------------
1  openGauss1 192.168.50.32   15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  openGauss2 192.168.50.126  15400      6002 /opt/huawei/install/data/dn   S Standby Normal
[omm@openGauss2 log]$

11.查看参数 和修改参数

openGauss=# show max_process_memory;
 max_process_memory
--------------------
 2GB
(1 row)

openGauss=# gs_guc reload -D /opt/huawei/install/data/dn -c "max_process_memory=2096M"
 

12.查看SQL执行计划

openGauss=# EXPLAIN select * from test;
                       QUERY PLAN
---------------------------------------------------------
 Seq Scan on test  (cost=0.00..23.17 rows=1317 width=32)
(1 row)

openGauss=#

13.备份数据库

[omm@openGauss1 opt]$  gs_dump postgres -p 15400 -f /u01/backup/postgres_bak220721.sql
gs_dump[port='15400'][postgres][2022-07-21 03:08:59]: The total objects number is 410.
gs_dump[port='15400'][postgres][2022-07-21 03:08:59]: [100.00%] 410 objects have been dumped.
gs_dump[port='15400'][postgres][2022-07-21 03:08:59]: dump database postgres successfully
gs_dump[port='15400'][postgres][2022-07-21 03:08:59]: total time: 951  ms
[omm@openGauss1 opt]$
 

14.检查所有节点状态

[omm@openGauss1 ~]$ gs_check -i CheckClusterState
Parsing the check items config file successfully
Distribute the context file to remote hosts successfully
Start to health check for the cluster. Total Items:1 Nodes:2

Checking...               [=========================] 1/1
Start to analysis the check result
CheckClusterState...........................OK
The item run on 2 nodes.  success: 2

Analysis the check result successfully
Success.        All check items run completed. Total:1   Success:1
For more information please refer to /opt/huawei/install/om/script/gspylib/inspection/output/CheckReport_202207211184890527.tar.gz
[omm@openGauss1 ~]$

[omm@openGauss1 ~]$ gs_check -i CheckCPU
Parsing the check items config file successfully
Distribute the context file to remote hosts successfully
Start to health check for the cluster. Total Items:1 Nodes:2

Checking...               [=========================] 1/1
Start to analysis the check result
CheckCPU....................................OK
The item run on 2 nodes.  success: 2

Analysis the check result successfully
Success.        All check items run completed. Total:1   Success:1
For more information please refer to /opt/huawei/install/om/script/gspylib/inspection/output/CheckReport_202207211192995315.tar.gz
[omm@openGauss1 ~]$ zcat /opt/huawei/install/om/script/gspylib/inspection/output/CheckReport_202207211192995315.tar.gz
nodes/0000700000175000017500000000000014266142645010636 5ustar  ommdbgrpnodes/CheckCPU_openGauss1_202207211192995315.out0000600000175000017500000000130714266142641017054 0ustar  ommdbgrp
[HOST]  openGauss1
[NAM]   CheckCPU
[RST]   OK
[VAL]

[RAW]
Linux 4.19.90-2003.4.0.0036.oe1.x86_64 (openGauss1)     07/21/22        _x86_64_        (2 CPU)

03:18:52        CPU     %user     %nice   %system   %iowait    %steal     %idle
03:18:53        all      3.57      0.00      3.57      0.00      0.00     92.86
03:18:54        all      1.47      0.00      1.47      0.00      0.00     97.06
03:18:55        all      3.55      0.00      4.57      0.00      0.00     91.88
03:18:56        all      3.52      0.00      5.03      0.00      0.00     91.46
03:18:57        all      3.05      0.00      4.06      0.00      0.00     92.89
Average:        all      3.02      0.00      3.73      0.00      0.00     93.25

nodes/CheckCPU_openGauss2_202207211192995315.out0000600000175000017500000000130714266142642017056 0ustar  ommdbgrp
[HOST]  openGauss2
[NAM]   CheckCPU
[RST]   OK
[VAL]

[RAW]
Linux 4.19.90-2003.4.0.0036.oe1.x86_64 (openGauss2)     07/21/22        _x86_64_        (2 CPU)

03:18:52        CPU     %user     %nice   %system   %iowait    %steal     %idle
03:18:53        all      1.03      0.00      4.62      0.00      0.00     94.36
03:18:54        all      0.51      0.00      1.02      0.00      0.00     98.48
03:18:55        all      1.53      0.00      4.59      0.00      0.00     93.88
03:18:56        all      2.03      0.00      4.57      0.00      0.00     93.40
03:18:57        all      1.52      0.00      1.52      0.00      0.00     96.95
Average:        all      1.32      0.00      3.26      0.00      0.00     95.42

log/0000700000175000017500000000000014266142645010307 5ustar  ommdbgrplog/gs_check_192.168.50.126.log0000600000175000017500000000177114266142645014232 0ustar  ommdbgrp[2022-07-20 14:17:58][gs_check][line:698][DEBUG] Load check context from cache file
[2022-07-20 14:17:58][CheckItem.py][line:349][DEBUG] Start to run CheckClusterState
[2022-07-20 14:18:06][CheckItem.py][line:361][DEBUG] Finish to run CheckClusterState
[2022-07-20 14:18:06][gs_check][line:1456][DEBUG] run check items done and exit the command
[2022-07-21 03:17:32][gs_check][line:698][DEBUG] Load check context from cache file
[2022-07-21 03:17:32][CheckItem.py][line:349][DEBUG] Start to run CheckClusterState
[2022-07-21 03:17:35][CheckItem.py][line:361][DEBUG] Finish to run CheckClusterState
[2022-07-21 03:17:35][gs_check][line:1456][DEBUG] run check items done and exit the command
[2022-07-21 03:18:52][gs_check][line:698][DEBUG] Load check context from cache file
[2022-07-21 03:18:52][CheckItem.py][line:349][DEBUG] Start to run CheckCPU
[2022-07-21 03:18:57][CheckItem.py][line:361][DEBUG] Finish to run CheckCPU
[2022-07-21 03:18:57][gs_check][line:1456][DEBUG] run check items done and exit the command
log/gs_check_openGauss1.log0000600000175000017500000000573114266142644014674 0ustar  ommdbgrp[2022-07-20 14:17:54][gs_check][line:772][DEBUG] Start to parse the check items config file
[2022-07-20 14:17:54][gs_check][line:894][INFO] Parsing the check items config file successfully
[2022-07-20 14:17:55][gs_check][line:881][DEBUG] Start to distributing the check context dump file
[2022-07-20 14:17:56][gs_check][line:894][INFO] Distribute the context file to remote hosts successfully
[2022-07-20 14:17:56][gs_check][line:894][INFO] Start to health check for the cluster. Total Items:1 Nodes:2
[2022-07-20 14:17:57][gs_check][line:698][DEBUG] Load check context from cache file
[2022-07-20 14:17:57][CheckItem.py][line:349][DEBUG] Start to run CheckClusterState
[2022-07-20 14:18:04][CheckItem.py][line:361][DEBUG] Finish to run CheckClusterState
[2022-07-20 14:18:04][gs_check][line:1456][DEBUG] run check items done and exit the command
[2022-07-20 14:18:10][gs_check][line:894][INFO] Start to analysis the check result
[2022-07-20 14:18:10][gs_check][line:894][INFO] Analysis the check result successfully
[2022-07-21 03:17:29][gs_check][line:772][DEBUG] Start to parse the check items config file
[2022-07-21 03:17:29][gs_check][line:894][INFO] Parsing the check items config file successfully
[2022-07-21 03:17:30][gs_check][line:881][DEBUG] Start to distributing the check context dump file
[2022-07-21 03:17:31][gs_check][line:894][INFO] Distribute the context file to remote hosts successfully
[2022-07-21 03:17:31][gs_check][line:894][INFO] Start to health check for the cluster. Total Items:1 Nodes:2
[2022-07-21 03:17:32][gs_check][line:698][DEBUG] Load check context from cache file
[2022-07-21 03:17:32][CheckItem.py][line:349][DEBUG] Start to run CheckClusterState
[2022-07-21 03:17:34][CheckItem.py][line:361][DEBUG] Finish to run CheckClusterState
[2022-07-21 03:17:34][gs_check][line:1456][DEBUG] run check items done and exit the command
[2022-07-21 03:17:37][gs_check][line:894][INFO] Start to analysis the check result
[2022-07-21 03:17:37][gs_check][line:894][INFO] Analysis the check result successfully
[2022-07-21 03:18:49][gs_check][line:772][DEBUG] Start to parse the check items config file
[2022-07-21 03:18:49][gs_check][line:894][INFO] Parsing the check items config file successfully
[2022-07-21 03:18:50][gs_check][line:881][DEBUG] Start to distributing the check context dump file
[2022-07-21 03:18:51][gs_check][line:894][INFO] Distribute the context file to remote hosts successfully
[2022-07-21 03:18:51][gs_check][line:894][INFO] Start to health check for the cluster. Total Items:1 Nodes:2
[2022-07-21 03:18:52][gs_check][line:698][DEBUG] Load check context from cache file
[2022-07-21 03:18:52][CheckItem.py][line:349][DEBUG] Start to run CheckCPU
[2022-07-21 03:18:57][CheckItem.py][line:361][DEBUG] Finish to run CheckCPU
[2022-07-21 03:18:57][gs_check][line:1456][DEBUG] run check items done and exit the command
[2022-07-21 03:19:00][gs_check][line:894][INFO] Start to analysis the check result
[2022-07-21 03:19:00][gs_check][line:894][INFO] Analysis the check result successfully
CheckResult_2022072111929953150000600000175000017500000000023114266142644013656 0ustar  ommdbgrpCheckCPU....................................OK
The item run on 2 nodes.  success: 2

Success.        All check items run completed. Total:1   Success:1

15. 检查数据库性能

[omm@openGauss1 ~]$ gs_checkperf -i pmk -U omm
Cluster statistics information:
    Host CPU busy time ratio                     :    1.69       %
    MPPDB CPU time % in busy time                :    37.17      %
    Shared Buffer Hit ratio                      :    93.54      %
    In-memory sort ratio                         :    0
    Physical Reads                               :    363
    Physical Writes                              :    182
    DB size                                      :    38         MB
    Total Physical writes                        :    182
    Active SQL count                             :    1
    Session count                                :    1
[omm@openGauss1 ~]$

16.备份数据库

[omm@openGauss1 backup]$ gs_basebackup -D  /u01/backup/openGauss1 -p 15400
INFO:  The starting position of the xlog copy of the full build is: 0/5000028. The slot minimum LSN is: 0/5000148.
[2022-07-21 09:19:21]:begin build tablespace list
[2022-07-21 09:19:21]:finish build tablespace list
[2022-07-21 09:19:21]:begin get xlog by xlogstream
[2022-07-21 09:19:21]: check identify system success
[2022-07-21 09:19:21]: send START_REPLICATION 0/5000000 success
[2022-07-21 09:19:21]: keepalive message is received
[2022-07-21 09:19:23]: keepalive message is received
[2022-07-21 09:19:26]: keepalive message is received
[2022-07-21 09:19:34]:gs_basebackup: base backup successfully
[omm@openGauss1 backup]$ cd openGauss1/
[omm@openGauss1 openGauss1]$ ls
PG_VERSION    cacert.pem          mot.conf   pg_ctl.lock   pg_hba.conf.bak   pg_llog       pg_notify    pg_snapshots  pg_twophase      postgresql.conf.bak   rewind_lable  server.key.cipher
backup_label  global              pg_clog    pg_errorinfo  pg_hba.conf.lock  pg_logical    pg_replslot  pg_stat_tmp   pg_xlog          postgresql.conf.lock  server.crt    server.key.rand
base          gswlm_userinfo.cfg  pg_csnlog  pg_hba.conf   pg_ident.conf     pg_multixact  pg_serial    pg_tblspc     postgresql.conf  postmaster.pid.lock   server.key    undo
[omm@openGauss1 openGauss1]$ gs_probackup version
gs_probackup (openGauss 3.0.0 build 02c14696) compiled at 2022-04-01 18:12:19 commit 0 last mr