How to start oracle data monitoring
Steps to start a data listener in Oracle: Check the current status: lsnrctl status Start: lsnrctl start Enable automatic start: lsnrctl set auto_start true Verify the startup status: lsnrctl status Check the log file (/u01/app/oracle /product/
/server/tnsnames.ora) for the error message.
How to start a data listener in Oracle?
Method:
1. Check the status of the data listener
Check the current status of the data listener through the following command Status:
lsnrctl status
2. Start the data listener
If the data listener has stopped, you can use the following command to start it:
lsnrctl start
3. Enable automatic startup
In order to ensure that the data listener starts automatically after the server restarts, you need to enable the automatic startup option:
lsnrctl set auto_start true
4. Verify that the data listener is Started
Execute the following command again to verify that the data listener has started successfully:
lsnrctl status
5. Check the log file
If If you encounter a problem starting the data listener, check the log file (usually located at /u01/app/oracle/product/<oracle_home>/server/tnsnames.ora
) for error messages.
Tips:
- If the data listener cannot be started, it may be due to a port conflict or permission issue.
- You can use the
lsnrctl set
command to modify other settings of the data listener, such as the listening port and protocol. - If you need to share data listeners between different database instances, you need to modify the configuration to reflect this.
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