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20260909 700B022自测：

[sdr@Testci_039 ~]$ gs_guc set -N all -D /usr2/sdryc/data/dn1 -c "synchronous_commit=on";
The gs_guc run with the following arguments: [gs_guc -N all -D /usr2/sdryc/data/dn1 -c synchronous_commit=on set ].
Begin to perform the total nodes: 3.
Popen count is 3, Popen success count is 3, Popen failure count is 0.
Begin to perform gs_guc for datanodes.
Command count is 3, Command success count is 3, Command failure count is 0.

Total instances: 3. Failed instances: 0.
ALL: Success to perform gs_guc!


[sdr@Testci_039 ~]$ gs_guc set -N all -D /usr2/sdryc/data/dn1 -c "recovery_min_apply_delay=2min"
The gs_guc run with the following arguments: [gs_guc -N all -D /usr2/sdryc/data/dn1 -c recovery_min_apply_delay=2min set ].
Begin to perform the total nodes: 3.
Popen count is 3, Popen success count is 3, Popen failure count is 0.
Begin to perform gs_guc for datanodes.
Command count is 3, Command success count is 3, Command failure count is 0.

Total instances: 3. Failed instances: 0.
ALL: Success to perform gs_guc!


[sdr@Testci_039 ~]$ gs_om -t stop

Stopping cluster.
=========================================
Successfully stopped cluster.
=========================================
End stop cluster.
[sdr@Testci_039 ~]$ gs_om -t start

Starting cluster.
=========================================
[SUCCESS] Testci_038
2026-09-09 11:26:57.657 6aa0d201.1 [unknown] 281473081389120 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  could not create any HA TCP/IP sockets
2026-09-09 11:26:57.658 6aa0d201.1 [unknown] 281473081389120 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  load matrix mem dynamic lib error: libubsm_sdk.so, lib not exists
2026-09-09 11:26:57.658 6aa0d201.1 [unknown] 281473081389120 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  load UADK AGG dynamic lib for DPA: libwd_dae.so, error: libwd_dae.so: cannot open shared object file: No such file or directory
2026-09-09 11:26:57.658 6aa0d201.1 [unknown] 281473081389120 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  max_imcs_cache * htap_borrow_mem_percent is larger than max_borrow_memory
[SUCCESS] Testci_039
2026-09-09 11:27:00.157 6aa0d204.1 [unknown] 281472641183808 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  could not create any HA TCP/IP sockets
2026-09-09 11:27:00.158 6aa0d204.1 [unknown] 281472641183808 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  load matrix mem dynamic lib error: libubsm_sdk.so, lib not exists
2026-09-09 11:27:00.158 6aa0d204.1 [unknown] 281472641183808 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  load UADK AGG dynamic lib for DPA: libwd_dae.so, error: libwd_dae.so: cannot open shared object file: No such file or directory
2026-09-09 11:27:00.158 6aa0d204.1 [unknown] 281472641183808 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  max_imcs_cache * htap_borrow_mem_percent is larger than max_borrow_memory
[SUCCESS] Testci_040
2026-09-09 11:27:03.135 6aa0d207.1 [unknown] 281472729395264 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  could not create any HA TCP/IP sockets
2026-09-09 11:27:03.136 6aa0d207.1 [unknown] 281472729395264 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  load matrix mem dynamic lib error: libubsm_sdk.so, lib not exists
2026-09-09 11:27:03.136 6aa0d207.1 [unknown] 281472729395264 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  load UADK AGG dynamic lib for DPA: libwd_dae.so, error: libwd_dae.so: cannot open shared object file: No such file or directory
2026-09-09 11:27:03.136 6aa0d207.1 [unknown] 281472729395264 [unknown] 0 dn_6001_6002_6003 01000  0 [BACKEND] WARNING:  max_imcs_cache * htap_borrow_mem_percent is larger than max_borrow_memory
Waiting for check cluster state...
=========================================
Successfully started.
[sdr@Testci_039 ~]$ 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  Testci_038 20.20.20.206    23000      6001 /usr2/sdryc/data/dn1   P Primary Normal
2  Testci_039 20.20.20.210    23000      6002 /usr2/sdryc/data/dn1   S Cascade Normal
3  Testci_040 20.20.20.212    23000      6003 /usr2/sdryc/data/dn1   S Standby Normal

【回归人员】sungang14
【回归日期】2026.9.11
【回归版本】openGauss 7.0.0B022
【回归结论】通过
【回归步骤】
1.将备节点1切换为级联备
gs_ctl build -D $PGDATA -M cascade_standby
gs_om -t refreshconf
2.设置事务同步方式为on
gs_guc set -N all -D $PGDATA -c "synchronous_commit=on";
3.配置所有节点备份延迟为2min
gs_guc set -N all -D $PGDATA -c "recovery_min_apply_delay=2min";
4.重启集群
gs_om -t stop
gs_om -t start