Re: Strange error when resizing MEMORY_TARGET

  • From: De DBA <dedba@xxxxxxxxxx>
  • To: Oracle Discussion List <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 16 Jan 2013 12:01:11 +1000

Thanks Han.

Unfortunately that did not work. I set all targets to the exact value 
that they currently occupy, i.e.:

shared pool = 1280M
large pool = 128M
streams pool = 128M
java pool = 256M

pga_aggregate_target = 2496M
sga_target = 4672M
db_cache_size = 2752M

Setting memory_target to 16G and even to 20G ( i.e. memory_max_target) 
still gives the same error "ORA-00846: could not shrink MEMORY_TARGET to 
specified value" :(

Cheers,
Tony

On 16/01/13 11:16 AM, Xie, Han wrote:
> Hi Tony,
>
> Oracle normally gives all new memory to default buffer cache, then 
> dynamically adjust other components later.
>
> What is your shared_pool_size parameter value please?  Is it possible that 
> shared_pool has grown, now oracle wants/needs to shrink it back to its 
> parameter size first before add new memory?
>
> My 2 cents.
>
> Cheers,
> Han
>
<snip due to overquoting>
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