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startupLinux下oracle報以下錯-創(chuàng)新互聯(lián)
startup Linux下oracle報以下錯
ORA-27102:out of memory Linux-X86_64
Error: 28: No space left on device [ID 301830.1]
適用于:
Oracle Server - Enterprise Edition - Version: 9.2.0.1 and later [Release: 9.2 and later ]
Oracle Server - Standard Edition - Version: 9.2.0.1 and later [Release: 9.2 and later]
Oracle Server - Enterprise Edition - Version: 9.2.0.1 and later [Release: 9.2 and later]
Linux x86-64
When trying to increase the SGA to approach half available RAM with an Oracle 64-bit version
on a Linux 64-bit operating system, even though shmmax is set to match half the amount of RAM,
you get the following error when trying to start the instance:
在64位linux下使用64位版本的oracle，即使把shmmax參數(shù)的大小設(shè)置系統(tǒng)可用內(nèi)存的一半，
當把SGA增加到接近一半的系統(tǒng)內(nèi)存時候，當startup實例的時候，可能得到以下錯誤
SQL> startup nomount
ORA-27102: out of memory
Linux-x86_64 Error: 28: No space left on device
Changes
shmall is too small, most likely is set to the default setting of 2097152
$ cat /proc/sys/kernel/shmall
2097152
Cause
shmall is the total amount of shared memory, in pages, that the system can use at one time.
shmall是系統(tǒng)在所有頁同一時間使用的共享內(nèi)存段的總數(shù)
Solution
解決辦法
Set shmall equal to the sum of all the SGAs on the system, divided by the page size.
設(shè)定shmall的值為等同于在系統(tǒng)中所有SGA占用內(nèi)存大小除以分頁大小的得出的最后的值
The page size can be determined using the following command:
用以下命令得到分頁的大小
$ getconf PAGE_SIZE
4096
For example, if the sum of all the SGAs on the system is 16Gb and the result of
'$ getconf PAGE_SIZE' is 4096 (4Kb) then set shmall to 4194304 pages
例如，如果系統(tǒng)中所有SGA的綜合為16Gb,然后getconf PAGE_SIZE 得出的結(jié)果是4096（4k）
那么shmall就設(shè)定為4194304頁
As the root user set the shmall to 4194304 in the /etc/sysctl.conf file:
用root用戶在/etc/sysctl.conf 文件中設(shè)定shmall為 4194304
kernel.shmall = 4194304
then run the following command:
設(shè)定后執(zhí)行以下命令
$ sysctl -p
$ cat /proc/sys/kernel/shmall
4194304
NOTE:
The above command loads the new value and a reboot is not necessary.
以上命令無須重啟
Switch back to being the oracle user and retry the startup command.
切換到oracle用戶，重新執(zhí)行startup命令
Modifying /etc/sysctl.conf is a permanent workaround (applies at boot time).
修改/etc/sysctl.conf 是一個永久的解決辦法（適用于開機時間）
If for some reason you DO NOT want to change the system wide configuration, you can do it
on the fly by directly changing the kernel pseudo FS AKA procfs.
如果出于某種原因不詳對系統(tǒng)大范圍改動配置，可以直接改變內(nèi)核的pseudo FS AKA procfs.
# echo "4194304" > /proc/sys/kernel/shmall
Using HUGEPAGES does not alter the calculation for configuring shmall.
使用大頁不會改變配置shmall的計算結(jié)果
以上翻譯僅供參考
References
NOTE:169706.1 - Oracle Database on Unix AIX,HP-UX,Linux,Mac OS X,Solaris,Tru64 Unix Operating Systems Installation and Configuration Requirements Quick Reference (8.0.5 to 11.2)
NOTE:851598.1 - Master Note of Linux OS Requirements for Database Server
NOTE:1351051.2 - Information Center: Install and Configure Database Server/Client Installations
Oracle Database Products > Oracle Database > Oracle Database > Oracle Server - Enterprise Edition
Oracle Database Products > Oracle Database > Oracle Database > Oracle Server - Standard Edition
Oracle Database Products > Oracle Database > Oracle Database > Oracle Server - Enterprise Edition
64-BIT; 64BIT; HUGEPAGES; INSTALL & CONFIGURE; LINUX; NO SPACE LEFT ON DEVICE; OUT OF MEMORY; START INSTANCE
ORA-27102
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名稱欄目：startupLinux下oracle報以下錯-創(chuàng)新互聯(lián)
本文來源：http://www.xueling.net.cn/article/gpocc.html