oracle handing memory allocation different between 11g and 12c?
Date: Fri, 12 Feb 2016 15:36:04 +0000
Message-ID: <2770ff66d0e543dd99b5e865c25480f1_at_wpvl1dag02.hcrec.com>
OS: Solaris 10 running on a zone of a T-4
I'm attempting to upgrade a database from 11.2.0.4 to 12.1.0.4
After running all prerequisite checks and resolving issues, I'm ready to run the upgrade
Starting the database using the 12c software, I'm getting the following
SQL> startup upgrade
ORA-27125: unable to create shared memory segment
SVR4 Error: 22: Invalid argument
Additional information: 2634 Additional information: 4194304 Additional information: 4194304
Sga_max_size is 1 G (same size used when database was 11g) Sga_targeet is 1 G
(lowering both of these to 500 Meg makes no difference)
Ipcs -a shows roughly 2.5 gig being used by other 11 g datbases on this server.
/etc/project has
user.oracle:100::oracle::project.max-sem-ids=(priv,100,deny);project.max-shm-memory=(priv,5368709120,deny);rcap.max-rss=19327352832
(which I understand to mean that the total of all shared memory segments is limited to 5 Gig.)
Is there something different between the 11g and 12c versions that might explain this?
The alert log is showing:
Fri Feb 12 10:29:30 2016
Starting ORACLE instance (normal) (OS id: 14926)
Fri Feb 12 10:29:30 2016
CLI notifier numLatches:3 maxDescs:1344
Fri Feb 12 10:29:30 2016
All SGA segments were allocated at startup
Fri Feb 12 10:29:30 2016
WARNING: The system does not seem to be configured
optimally. Creating a segment of size 0x0000000000400000
failed. Please change the shm parameters so that
a segment can be created for this size. While this is
not a fatal issue, creating one segment may improve
performance
Fri Feb 12 10:29:30 2016
Fri Feb 12 10:29:30 2016
Dump of system resources acquired for SHARED GLOBAL AREA (SGA)
Fri Feb 12 10:29:30 2016
Available system pagesizes:
8K, 64K, 4096K, 256M, 2048M
Fri Feb 12 10:29:30 2016
Supported system pagesize(s):
Fri Feb 12 10:29:30 2016
PAGESIZE AVAILABLE_PAGES EXPECTED_PAGES ALLOCATED_PAGES ERROR(s)
Fri Feb 12 10:29:30 2016
4096K Configured 63 0 ORA-27125 Fri Feb 12 10:29:30 2016
256M Configured 1 0 NONE Fri Feb 12 10:29:30 2016
2048M Configured 0 0 NONE
Fri Feb 12 10:29:30 2016
Reason for not supporting certain system pagesizes:
Fri Feb 12 10:29:30 2016
8K - Pagesize not supported by shared memory type
Fri Feb 12 10:29:30 2016
64K - Pagesize not supported by shared memory type
Fri Feb 12 10:29:30 2016
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-- http://www.freelists.org/webpage/oracle-lReceived on Fri Feb 12 2016 - 16:36:04 CET