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gc cr block busy

755982Feb 24 2010 — edited Apr 23 2010
I encountered gc cr block busy event in an RAC env. Did a little bit research, and it is saying that even a select statement will suffer from Lgwr performance and has to wait the log flush to complete.

Why it needs to wait for log flush to complete even a CR block is being selected?
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Locked on May 21 2010
Added on Feb 24 2010
#performance, #performance-availability, #rac, #real-application-clusters
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