Database Administration (MOSC)

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RAC Performance

edited Apr 29, 2019 8:17PM in Database Administration (MOSC) 15 commentsAnswered

I'm new to RAC, and I have many single instance databases (all with DB version 12.2.0.1).

My RAC databases (also with DB version 12.2.0.1)  seem to be significantly slower then the single instances.

I have identical database build as single instance and RAC. They have same schema and same data.

When I drop a users in single instance, it took around 3 to 5 minutes, and dropping that same user with same amount of data took 15 minutes.

When I import the same dump file into a single instance, it took 9 minutes for a 11G dump. In the RAC database, it took an hour to import that same file.

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