Ora-27102 Out Of Memory Error 28
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- ORA-27102: out of memory Linux-X86_64 Error: 28: No ora 27102 out of memory linux x86_64 error 12 cannot allocate memory space left on device SQL> startupORA-27102: out of memoryLinux-x86_64 Error: ora 27102 out of memory windows 28: No space left on deviceI have used RHEL X86_64 + memory (32GB) and
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setted sga_max_size=20G + sga_target=20G and ...$ cat /proc/sys/kernel/shmmax26843545600What wrong with my kernel tuning... So, I checked metalink (301830.1) and some recommend from RHELThey told;
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set SHMALL to the total amount of physical RAM divided by page size.SHMALL =>Total amount of shared memory available (bytes or pages)then:Check Page Size:$ getconf PAGE_SIZE4096Determine the system wide maximum number of shared memory pages:$ cat /proc/sys/kernel/shmall2097152My system 64bits with memory 32GB, then 1024 * 1024 * ora 27102 out of memory solaris 11 1024 * 32 / 4096 = 8388608So, change kernel.shmall = 8388608$ su - root # echo 8388608 > /proc/sys/kernel/shmallOr modify /etc/sysctl.conf file:kernel.shmall=8388608and # sysctl -pAfter changed... check and startup database again:$ cat /proc/sys/kernel/shmall8388608SQL> startup...--- NO ERROR ---By the way, I read Tuning Red Hat Enterprise Linux: Oracle and Oracle RACFrom this idea with memory 32GBmem=$(free|grep Mem|awk '{print$2}')totmem=$(echo "$mem*1024"|bc)huge=$(grep Hugepagesize /proc/meminfo|awk '{print $2}')max=$(echo "$totmem*75/100"|bc)all=$(echo "$max/$huge"|bc)echo "kernel.shmmax = $max" echo "kernel.shmall = $all" Result:kernel.shmmax = 25213120512, kernel.shmall = 12311094However, This case "ORA-27102: out of memory Linux-X86_64 Error: 28: No space left on device" , solved by set SHMALL = MemTotal(byte)/PAGE_SIZE and ...I hope to hear your idea about kernel tuning with Oracle Database. เขียนโดย Surachart Opun ที่ 10:14 PM ป้ายกำกับ: 10g, linux, ora, oracle No comments: Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) View Surachart Opun's prof
on device SQL*Plus: Release 11.2.0.4.0 Production on Mon Nov 11 22:05:53 2014 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORA-27102: out of
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memory Linux-x86_64 Error: 28: No space left on device Check the kernel parameter ora-27102 out of memory linux-x86_64 error 12 shmall in the /etc/sysctl.conf file. The parameter shmall is the total shared memory in pages, that the system can use at linux-x86_64 error: 12: cannot allocate memory one time. $cat /proc/sys/kernel/shmmax Command to check the page size, $ getconf PAGE_SIZE As per the Oracle, shmall = Total_RAM/Page_Size Change kernel.shmall = 1024 * 1024 * 1024 * RAM_Size / http://surachartopun.com/2009/10/shared-memory-tuning-startup-database.html PAGE_Size Edit the shmall parameter in the /etc/sysctl.conf file For Example, $ su - root vi /etc/sysctl.conf file: kernel.shmall=16777216 save the file and execute the below command to effect the changes done, # sysctl -p You may also like... PREVENT USERS (SCHEMAS) FROM GETTING DROPPED 26 Oct, 2014 Table De-Fragmentation to Reclaim the Space and Different Methods of De-Fragmentation 26 Oct, 2014 PREVENT USERS (SCHEMAS) http://www.oracle-scn.com/ora-27102-out-of-memory-linux-x86_64-error-28-no-space-left-on-device-while-starting-the-database/ FROM GETTING DROPPED 26 Oct, 2014 Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Veeratteshwaran S Knowledge Sharing is my passion. When you get, give. When you Know, Share. When we Give and Share, we get and acquire more. Oracle is an Ocean and I share a drop of my knowledge through this simple site. Next story ERROR: Cannot register or unregister EXTRACT because of the following SQL error: OCI Error 26,665. Previous story Integrated Extract Not Starting - Integrated Capture status is STARTING - Waiting for Dictionary Redo CategoriesCategories Select Category General(7) GoldenGate(32) Logical Standby(3) Oracle ASM(7) Oracle GoldenGate 12.2(4) Oracle12c(2) RMAN(11) Recent Posts Oracle GoldenGate Integration with DATAPUMP - DBOPTIONS ENABLE_INSTANTIATION_FILTERING - Oracle GoldenGate 12.2 New Feature CHECKPRM - Oracle GoldenGate 12.2 New Feature ERROR OGG-02912 Patch 17030189 is required on your Oracle mining database for trail format RELEASE 12.2 or later. Oracle GoldenGate 12.2 New Feature - GETPARAMINFO Oracle GoldenGate 12.2 New Feature - INFO PARAM Recent CommentsVeeratteshwaran on ORACLE GOLDENGATE CHECKPOINTSRachit on ORACLE GOLDENGATE CHECKPOINTSAnuj on ORACLE GOLDENGATE CHECKPOINTSadmin on ORACLE GOLDENGATE INSERTALLRECORDS - To Maintain Transaction Historygavin soorma on ORACLE GOLDENGATE INSERTALLRECORDS - To Maintain Transaction HistoryArchives O
is to provide simple examples, so that they can be easily adapted to other situations. Friday, December 18, 2015 How to solve ORA-27102: out of http://minimalistic-oracle.blogspot.com/2015/12/how-to-solve-ora-27102-out-of-memory-on.html memory on startup You want to increase your SGA to a larger value, and you have taken care to increase the value of shmmax in the /etc/sysctl.conf file. When starting up the database with increased values for sga_max_size and sga_target, you hit SQL> startup ORA-27102: out of memory Linux-x86_64 Error: 28: No space left on device Additional information: out of 1543503872 Additional information: 1 Solution: Increase the value of shmall as well. Shmall indicates the total amount of shared memory that the system can use at one time (measured in pages). To find the page size: getconf PAGE_SIZE 4096 Make sure that the shmall is larger, not identical, than the setting of your SGA. For example, if you want out of memory a 12G SGA, do not set shmall to 3145728 which would be the number of pages for 12G Set it to a value larger instead, for example 3670016, which is the number of pages equivalent to 14G: 3670016*4096=15032385536 15032385536/1024/1024/1024 = 14G As root, open /etc/sysctl.conf in an editor. Search for the string kernel.shmall Change the value Save and exit. Then, still as root, execute sysctl -p Check that the new settings are in place: /sbin/sysctl -a | grep shm The database should now be possible to open. Posted by Name: Vegard Kåsa at Friday, December 18, 2015 Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest Labels: Errors, memory, SGA and PGA No comments: Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) Blog Archive ► 2016 (40) ► October (2) ► September (2) ► August (6) ► July (5) ► June (4) ► May (1) ► April (4) ► March (5) ► February (5) ► January (6) ▼ 2015 (68) ▼ December (9) Generate "drop user" statement for schemas w