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January 26, 2016 archive

Jan 26

Identifying ASH Sequence Contention in RAC

By bpeasland in Oracle, RAC, Tuning

In Chapter 3 of Oracle RAC Performance Tuning, I showed how improper CACHE values for sequences can cause poor performance in Oracle RAC. I also showed how to spot sequence contention when looking at a session’s wait events. Today, I was working with a developer who was creating a new sequence. The developer had a …

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@sacrophyte That was an old recommendation which is probably out of date now. When I look at the 19c doc for that p… https://t.co/h0VwGJECvH

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Also in that note is "We decided to not promote our Database 20c Preview version to General Availability. Instead,… https://t.co/bvUcRKQ9gt

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January 26, 2016 archive

Identifying ASH Sequence Contention in RAC

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