Home > oracle > Oracle: Alter tablespace read only causes enqueue TX contention

Oracle: Alter tablespace read only causes enqueue TX contention

I’m trying to get a tablespace in read only mode, but it causes an Enqueue TX contention wait event.

This is because there are still active transactions in the database (uncommited or not rolled back) in other tablespaces. I didn’t know that I have to wait for other transactions to commit or rollback on other tablespaces.

So, I’ll try it again during peak-off time.

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