`
hunxiejun
  • 浏览: 1137456 次
文章分类
社区版块
存档分类
最新评论

Upon startup of Linux database get ORA-27102: out of memory Linux-X86_64 Error: 28: No space left on device

 
阅读更多

Upon startup of Linux database get ORA-27102: out of memory Linux-X86_64 Error: 28: No space left on device [ID 301830.1]

Applies to:

Oracle Server - Enterprise Edition - Version: 9.2.0.4 to 11.2.0.2 - Release: 9.2 to 11.2
Red Hat Enterprise Linux Advanced Server x86-64 (AMD Opteron Architecture)
x86 64 bit (for Enterprise Linux only)
SUSE / UnitedLinux x86-64

Symptoms

When trying to increase the SGA to approach half available RAM with an Oracle 64bit version on a Linux 64bit 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:

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

<!--StartFragment -->shmall is the total amount of shared memory, in pages, that the system can use at one time.

Solution

Set shmall equal to the sum of all the SGAs on the system, divided by the page size.

The page size can be determined using the following command:

$ 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

As the root user set the shmall to 4194304 in the /etc/sysctl.conf file:

kernel.shmall = 4194304

then run the following command:

# sysctl -p
# cat /proc/sys/kernel/shmall
4194304

NOTE:

The above command loads the new value and a reboot is not necessary

Switch back to being the oracle user and retry the startup command.

From Oracle

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

Blog http://blog.csdn.net/tianlesoftware

Email: dvd.dba@gmail.com

DBA1 群:62697716(); DBA2 群:62697977() DBA3 群:62697850()

DBA 超级群:63306533(); DBA4 群: 83829929 DBA5群: 142216823

DBA6 群:158654907 聊天 群:40132017 聊天2群:69087192

--加群需要在备注说明Oracle表空间和数据文件的关系,否则拒绝申请

分享到:
评论

相关推荐

Global site tag (gtag.js) - Google Analytics