High Availability Data Guard, Sharding and Global Data Services (MOSC)

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Could sequences cause too bad performance when those are used into a RAC environment, and same time

edited Nov 30, 2018 6:28PM in High Availability Data Guard, Sharding and Global Data Services (MOSC) 3 commentsAnswered

Hi everybody:

Now we have a very strange issue. We have one database in a 4 nodes RAC. We have detected that application has some problems managing sequences. The issue is that application needs the sequence has ordered no cached. So this could slowdown application, but application is working "fine".

Today we have implementd replication using Oracle Golden Gate.on this scenario, we have problems specially with 7 sequences, which cause golden gate has never get sincronized between primary and replica. In order to solve this issue, we decided to exclude those 7 sequences. Ignoring those sequences Golden Gate replicates very good, no issues.

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