OperationCenter DR Switchover Takes a Long Time and the Database Is Rebuilt Repeatedly

【Product�?
ManageOne OperationCenter

【Version�?
2.3, 3.0, 3.0.5, 3.0.7, 3.0.8, and 3.0.9

【Fault Type�?
Installation & Deployment

【Symptom�?
During the switchover between the production site and DR site, the OperationCenter database startup takes a long time.

【Fault Locating�?
After the switchover script is executed, the database is in the stopped state. Run the gs_ctl querybuild command as user appuser on the OperationCenter server. The database is repeatedly rebuilt.

【Troubleshooting�?
Step 1 Use PuTTY and the remote login IP address to log in to the active node of the production site as user appuser.

Step 2 Run the following command to switch to user root:
sudo su �?root
Enter the password of user root.

Step 3 Run the following command to disable PuTTY logout on timeout:
TMOUT=0

Step 4 Run the following commands to modify the database monitoring script:
cd /opt/OperationCenter/AppBase/HA/ha/module/harm/plugin/script/
sed -i 's/db_state_rest/db_state_rst/g' db.sh

NOTE:
Perform Step 1 through Step 4 to configure the standby node of OperationCenter at the production site, as well as the active and standby nodes of OperationCenter at the DR site.

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