__xxxx_pool_size in 10g

From: Sami Seerangan <dba.orcl_at_gmail.com>
Date: Sat, 6 Aug 2005 15:35:42 -0400
Message-ID: <f09dd6280508061235813e000@mail.gmail.com>

Hi,

I am just curious to know what is this undocumented init parameters mentioned below?
What is the difference between java_pool_size and __java_pool_size

SQL> show parameter _pool_size

NAME TYPE VALUE

------------------------------------ ----------- ------------------

__java_pool_size big integer 48M
__large_pool_size big integer 8M
__shared_pool_size big integer 80M

global_context_pool_size string
java_pool_size big integer 4M
large_pool_size big integer 4M
olap_page_pool_size big integer 0
shared_pool_size big integer 8M
streams_pool_size big integer 0
SQL> select * from v$version;

BANNER

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Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Prod PL/SQL Release 10.1.0.2.0 - Production
CORE 10.1.0.2.0 Production
TNS for 32-bit Windows: Version 10.1.0.2.0 - Production NLSRTL Version 10.1.0.2.0 - Production

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Received on Sat Aug 06 2005 - 14:37:37 CDT