Table locks happen when one database session prevents other sessions from accessing a table or rows within it. In AWS RDS, you can use Performance Insights to identify locking sessions and understand what is causing the blocking activity.
Open the RDS Dashboard
Go to your RDS dashboard in the AWS Console.
Select the Database Instance
Inside the RDS dashboard, click DB Instances and select the database instance you want to inspect.
Open Performance Insights
Navigate to the Performance Insights tab and look for the Sessions section.
This is where you can monitor active database sessions and detect locking activity in real time.
Identify Locking Activity
If there are table locks, they will appear as wait events starting with LCK_.
You can click on the lock-related wait event to view more details, such as:
- Which queries are causing the lock
- Which sessions are waiting
- How long the lock has been active
- Database activity related to the lock
Using Performance Insights this way makes it much easier to identify blocking sessions before they turn into a full application slowdown or outage.
#databases #aws #cloud
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