Unified Auditing performance

Originally posted on “Databases at CERN” blog

In my previous blog post (Migrating to Oracle Database 12c – what to do with auditing?) I provided you with number of reasons why unified auditing looks very promising and should be seriously considered while migrating to 12c. Nonetheless, I was not talking at all about performance – which also seems to be greatly improved.

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Starting workload capture hangs – is it really problem with RAT?

Originally posted on “Databases at CERN” blog

If you plan to introduce changes in your environment and want to estimate their impact, Real Application Testing feature seems to be one of the best options. As we needed to check the influence of changes planned in our databases, I’ve started to look for good candidates to capture the workloads. I wanted to capture only workloads associated with small number of schemas, but from several databases, to be able to properly simulate as much types of production workloads existing in our databases as possible. This strategy would also allow us to use/test new Consolidated Replay feature of RAT. Ideal set of schemas should be responsible for quite a big amount of workload in the database, but should not be too big in terms of space – to be easily exportable using EXPDP with FLASHBACK_SCN option.

Continue reading “Starting workload capture hangs – is it really problem with RAT?”