Combat with an enqueue wait event (enq: HW–Contention)
Recently I’ve been combating a high water mark enqueue wait (enq: HW – contention) on a single node within an Exadata I’m supporting. I first noticed the wait when I was looking at the performance...
View ArticlePerformance Tuning with AWR & ASH in #em12c
Oracle monitoring and performance tuning has grown over the years. With every release of the Oracle database the monitoring capabilities that have been provided have evolved. In Oracle11g, monitoring...
View ArticleTuning with ASH Analytics in #em12c
Performance tuning of the Oracle Database has always been a great thing to learn and a valuable skill for any database administer. In a previous post, I talked about how to use the Active Workload...
View ArticleSetup Streams Performance Advisor (UTL_SPADV) for #GoldenGate
With Oracle “merging” Oracle GoldenGate into Oracle Streams (or vise-versa), capturing statitics on the intergrated extract (capture) or integrated replicat (happy) will be needed. In order to do...
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