Database Memory & 4030/4031 (MOSC)

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Auto Shared Memory Management Question

edited Jun 19, 2017 10:44AM in Database Memory & 4030/4031 (MOSC) 12 commentsAnswered

I am seeing a lot of grow and shrink attempts in CANCELLED state in v$sga_resize_ops.  This is on Enterprise Edition version 12.1.0.2.

All the GROW attempts are by shared pool. All SHRINK attempts are by buffer cache.  Shared pool is about 6GB in size currently.  Buffer cache is about 40GB.  In theory shared pool should be able to grow unless buffer cache is full.  But I don't think that is the case.  So the failed attempts are baffling to me.

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