Introduction
The Oracle error code ORA-01621 indicates that a new log file is required for the specified log group. This error typically occurs when attempting to add a new log file to a log group that has exhausted its available space.
Causes
Cause 1: Log Group Exhausted
This error can occur when the current log group has run out of space and a new log file is needed.
ALTER DATABASE ADD LOGFILE GROUP 3 ('/disk1/log3a.rdo', '/disk2/log3b.rdo') SIZE 50M;
Solutions
Solution 1: Add a New Log File
To resolve this issue, you can add a new log file to the existing log group. You can use the ALTER DATABASE ADD LOGFILE command to add a new log file to the log group.
ALTER DATABASE ADD LOGFILE GROUP 3 ('/disk1/log3a.rdo', '/disk2/log3b.rdo') SIZE 50M;
Detailed Solutions
To prevent this issue from occurring in the future, you can regularly monitor the space usage of the log groups and add new log files as needed. Additionally, you can consider increasing the size of the log files to accommodate the growing log data.
Commonly Faced Issues
A commonly faced issue related to this error is the inability to add a new log file due to insufficient disk space. To address this, you should ensure that there is enough available space on the disk to accommodate the new log file.
df -h
FAQs
Q: What causes the ORA-01621 error?
A: The ORA-01621 error is caused by a log group running out of space and requiring a new log file.
Q: How can I resolve the ORA-01621 error?
A: You can resolve this error by adding a new log file to the log group using the ALTER DATABASE ADD LOGFILE command. Additionally, ensure that there is enough disk space available for the new log file.