11g 报错 ORA-27102: out of memory Linux Error: 22: Invalid argument

昨天没事装了个11g玩，安装软件dbca建库使用一切正常。今天启动发现报错

[oracle@OEL54db11gR2 dbs]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Thu Nov 22 20:07:45 2012

Copyright (c) 1982, 2009, Oracle. All rights reserved.

Connected to an idle instance.

SQL> startup

ORA-27102: out of memory

Linux Error: 22: Invalid argument

处理流程如下：

1、查看数据库内存大小

[oracle@OEL54db11gR2 ~]$ cd /u01/app/oracle/product/11.2.0/db_1/dbs/

[oracle@OEL54db11gR2 dbs]$ ls

hc_DBUA0.dat init.ora orapworcl peshm_orcl_0

hc_orcl.dat lkORCL peshm_DBUA0_0 spfileorcl.ora

[oracle@OEL54db11gR2 dbs]$ cat spfileorcl.ora

C"挌m盈/CC"6Porcl.__db_cache_size=205520896

orcl.__java_pool_size=4194304

orcl.__large_pool_size=4194304

orcl.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment

orcl.__pga_aggregate_target=218103808

orcl.__sga_target=322961408

orcl.__shared_io_pool_size=0

orcl.__shared_pool_size=100663296

orcl.__streams_pool_size=0

*.audit_file_dest='/u01/app/oracle/admin/orcl/adump'

*.audit_trail='db'

*.compatible='11.2.0.0.0'

*.control_files='/u01/app/oracle/oradata/orcl/control01.ctl','/u01/app/oCC"/racle/oradata/orcl/control02.ctl'

*.db_block_size=8192

*.db_domain=''

*.db_name='orcl'

*.diagnostic_dest='/u01/app/oracle'

*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'

*.memory_target=541065216

*.open_cursors=300

*.processes=150

*.remote_login_passwordfile='EXCLUSIVE'

*.undo_tablespace='UNDOTBS1'

2、切换到root用户，查看内核内存大小

[oracle@OEL54db11gR2 ~]$ su -

Password:

[root@OEL54db11gR2 ~]# vi /etc/sysctl.conf

# Kernel sysctl configuration file for Oracle Enterprise Linux

#

# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and

# sysctl.conf(5) for more details.

# Controls IP packet forwarding

net.ipv4.ip_forward = 0

# Controls source route verification

net.ipv4.conf.default.rp_filter = 2

# Do not accept source routing

net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel

kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename

# Useful for debugging multi-threaded applications

kernel.core_uses_pid = 1

# Controls the use of TCP syncookies

net.ipv4.tcp_syncookies = 1

# Controls the maximum size of a message, in bytes

kernel.msgmnb = 65536

# Controls the default maxmimum size of a mesage queue

kernel.msgmax = 65536

# Controls the maximum shared segment size, in bytes

kernel.shmmax = 68719476736

# Controls the maximum number of shared memory segments, in pages

kernel.shmall =322961408

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

fs.file-max = 6815744

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default = 4194304

net.core.rmem_max = 4194304

net.core.wmem_default = 1048576

"/etc/sysctl.conf" 44L, 1265C written

3、修改shmmax参数为数据库内存的2倍

# Kernel sysctl configuration file for Oracle Enterprise Linux

#

# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and

# sysctl.conf(5) for more details.

# Controls IP packet forwarding

net.ipv4.ip_forward = 0

# Controls source route verification

net.ipv4.conf.default.rp_filter = 2

# Do not accept source routing

net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel

kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename

# Useful for debugging multi-threaded applications

kernel.core_uses_pid = 1

# Controls the use of TCP syncookies

net.ipv4.tcp_syncookies = 1

# Controls the maximum size of a message, in bytes

kernel.msgmnb = 65536

# Controls the default maxmimum size of a mesage queue

kernel.msgmax = 65536

# Controls the maximum shared segment size, in bytes

kernel.shmmax =645922816

# Controls the maximum number of shared memory segments, in pages

kernel.shmall =322961408

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

fs.file-max = 6815744

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default = 4194304

net.core.rmem_max = 4194304

net.core.wmem_default = 1048576

net.core.wmem_max = 1048576

fs.aio-max-nr = 1048576

"/etc/sysctl.conf" 44L, 1263C written

[root@OEL54db11gR2 ~]# /sbin/sysctl -e -p /etc/sysctl.conf

net.ipv4.ip_forward = 0

net.ipv4.conf.default.rp_filter = 2

net.ipv4.conf.default.accept_source_route = 0

kernel.sysrq = 0

kernel.core_uses_pid = 1

net.ipv4.tcp_syncookies = 1

kernel.msgmnb = 65536

kernel.msgmax = 65536

kernel.shmmax = 645922816

kernel.shmall = 322961408

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

fs.file-max = 6815744

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default = 4194304

net.core.rmem_max = 4194304

net.core.wmem_default = 1048576

net.core.wmem_max = 1048576

fs.aio-max-nr = 1048576

3、生效设置

[root@OEL54db11gR2 ~]# /sbin/sysctl -e -p /etc/sysctl.conf

4、启动数据库

SQL> startup

ORACLE instance started.

Total System Global Area 539848704 bytes

Fixed Size 1337748 bytes

Variable Size 327157356 bytes

Database Buffers 205520896 bytes

Redo Buffers 5832704 bytes

Database mounted.

Database opened.