Ora-27123 Solaris-amd64 Error 22 Invalid Argument
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Ora-27102 Out Of Memory Solaris
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LOCK_SGA - Shared Memory Segments - Solaris 2.5 - ORA-27125 [message #70902] Fri, 09 August 2002 12:58 Toyn Messages: 36Registered: April 2001 Member Hi, I'm doing some performance tuning to my system, and one parameter I've been working with is ora-27102: out of memory solaris-amd64 error: 22: invalid argument lock_sga. I've ensured that my sga is within the limits of the shmsys:shminfo_shmmax Solaris ora-27102 out of memory windows system OS parameter. When lock_sga is disabled, my database comes up fine, however, when it is enabled, I get the following error:
Project.max-shm-memory Solaris 11
SVRMGR> startup ORA-27125: unable to create shared memory segment SVR4 Error: 1: Not owner Below is an explanation of the error I've found: ORA-27125: unable to create shared memory segment Cause: A call to shmget() failed. Do https://scn.sap.com/thread/946027 I have to be the owner of shmget in order to lock my sga in memory? I'm logged into svrmgrl as oracle (I can't access the utility as root). Is lock_sga even available for this version of Solaris 2.5? I'd like to store my entire sga in memory, what do I have to do in order to accomplish this? Thanks! Report message to a moderator Re: LOCK_SGA - Shared Memory http://www.orafaq.com/forum/t/25796/ Segments - Solaris 2.5 - ORA-27125 [message #70905 is a reply to message #70902] Sat, 10 August 2002 13:39 TomazZ Messages: 7Registered: August 2002 Junior Member From metalink: This problem is caused by an operating system limitation, and occurs when the following two conditions are true: o When the parameter LOCK_SGA is set to TRUE in the init.ora file, and o When you are running on the Solaris platform. The setting of the parameter LOCK_SGA=TRUE is not supported on Solaris. On Solaris the function calls that Oracle uses to fix the SGA in memory can only be done by root, but the Oracle executable is normally owned by Oracle. The Oracle user does not have the required privileges to call the OS function to fix the SGA in memory. Other platforms do not have this problem. Oracle includes this parameter on Solaris because it is part of the generic code. This feature on Solaris will not work until Sun changes their code so that memory can be accessed by non-root users. Report message to a moderator Re: LOCK_SGA - Shared Memory Segments - Solaris 2.5 - ORA-27125 [message #71985 is a reply to message #70905] Fri, 14 February 2003 09:50 VISHNU Messages: 14Registered: November 2001 Junior Member Same issue with Linux. In fact,
»Oracle 10g, Solaris 10 x86. SGA size Pages 1 2 Next You must login or register to post a reply Topic RSS feed Posts [ 1 to 25 of 33 ] http://www.progtown.com/topic566994-oracle-10g-solaris-10-x86-sga-size.html 1 Topic by SGA an augmentor 2012-05-06 07:31:51 SGA an augmentor Member Offline Registered: 2012-05-06 Posts: 12 Topic: Oracle 10g, Solaris 10 x86. SGA size Hello!At me available a 32-bit server, from 16 Gb of storage, architecture x86.Installed Solaris 10, installed Oracle 10g (10.2.0.2.0).In general I will result system parameters: bash-3.00#/usr/sbin/prtconf | grep "Memory size" Memory size: 16129 Megabytes bash-3.00#Further: bash-3.00# swap-s total: 1470460k bytes allocated + 62392k reserved out of = 1532852k used, 14512188k available bash-3.00#IN/etc/systembash-3.00# grep semmni/etc/system set semsys:seminfo_semmni=100 bash-3.00# grep semmns/etc/system set semsys:seminfo_semmns=1024 bash-3.00# grep semmsl/etc/system set semsys:seminfo_semmsl=256 bash-3.00# grep semvmx/etc/system set semsys:seminfo_semvmx=32767 bash-3.00# grep shmmax/etc/system set shmsys:shminfo_shmmax=4294967295 bash-3.00# grep shmmni/etc/system set shmsys:shminfo_shmmni=100 bash-3.00#Created with usage DBCA basis.Then tried to increase SGA (to make more than 1 Gb) sga_target=1610612736 I try to start basis SQL> startup ORA-27123: unable to attach to shared memory segment INTEL SVR4 UNIX ERROR: out of memory 22: Invalid argument Additional information: 1 Additional information: 60 SQL>For the sake of interest sga_target=4294967296 I receiveSQL> startup ORA-27102: out of memory SQL>Type errorORA-27123: unable to attach to shared memory segment INTEL SVR4 UNIX ERROR: 22: Invalid argument Additional information: 1 Additional information: 60 I receive at any magnification SGA over 1 Gb.I ask to prompt, where I could ?Why than 1 Gb for SGA is not selected more?Whether it is possible to select for SGA more than 2 ?More than 4 Gb? If that is possible as it to make? 2 Reply by DimaR 2012-05-06 07:57:51 DimaR Member Offline Registered: 2009-04-23 Posts: 14,474 Re: Oracle 10g, Solaris 10 x86. SGA size Strange, at me selects how many I will ask, in not to a global zone SQL*Plus: Release 10.2.0.2.0 - Production on Fri Jan 19 10:44:35 AM 2007 Copyright (c) 1982, 2005, Oracle. All Rights Reserved. Enter password: Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 1258291200 bytes Fixed Size 1279988 bytes Variable Size 469764108 bytes Database Buffers 771751936 bytes Redo Buffers 15495168 bytes Database mounted. Database opened. (oracle@orazone)-bash $ swap-s total: 1438932k bytes allocated + 146856k reserved = 1585788k used, 5343980k available And sga_max_size? 3 Reply by SGA a