ORA-27086: unable to lock file

问题现象:

SQL> startup

ORACLE instance started.

Total System Global Area 1854021632 bytes

Fixed Size 2242584 bytes

Variable Size 1136658408 bytes

Database Buffers 708837376 bytes

Redo Buffers 6283264 bytes

ORA-00205: error in identifying control file, check alert log for more info

查看alert日志

SQL> select value from v$diag_info where name ='Diag Alert';

VALUE

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

/data/oracle/ora11g/diag/rdbms/tjdb/tjdb/alert

[oracle@hrtestdb ~]cd /data/oracle/ora11g/diag/rdbms/tjdb/tjdb/alert

[oracle@hrtestdb alert]# ll
?荤.?.102508
-rw-r-----. 1 oracle oinstall 10485978 12?.30 2014 log_16.xml
-rw-r-----. 1 oracle oinstall 10485945 1?. 25 2015 log_17.xml
-rw-r-----. 1 oracle oinstall 10485763 2?. 13 2015 log_18.xml
-rw-r-----. 1 oracle oinstall 10485996 3?. 8 2015 log_19.xml
-rw-r-----. 1 oracle oinstall 10485761 3?. 21 2015 log_20.xml
-rw-r-----. 1 oracle oinstall 10485841 4?. 3 2015 log_21.xml
-rw-r-----. 1 oracle oinstall 10485932 4?. 15 2015 log_22.xml
-rw-r-----. 1 oracle oinstall 10485792 7?. 4 17:42 log_23.xml
-rw-r-----. 1 oracle oinstall 10485970 7?. 4 23:41 log_24.xml
-rw-r-----. 1 oracle oinstall 10392897 10?.21 09:20 log.xml
[oracle@hrtestdb alert]# less log.xml

Alert 日志片断:

host_id='hrtestdb' host_addr='10.3.64.204' module=''
pid='7210'>
<txt>ORA-00210: cannot open the specified control file
ORA-00202: control file: '/data/oracle/ora11g/oradata/tjdb/control03.ctl'
ORA-27086: unable to lock file - already in use
Linux-x86_64 Error: 11: Resource temporarily unavailable

解决:

1.先使用lsof 或fuser 查询出正在使用这些文件的进程:

[root@hrtestdb ~]#fuser -m -v /data

或

[root@hrtestdb ~]# lsof /data/oracle/ora11g/oradata/tjdb/control*
COMMAND PID   USER   FD   TYPE DEVICE SIZE/OFF    NODE NAME
oracle 8041 oracle 256u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle 8041 oracle 257u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle 8041 oracle 258u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle 8043 oracle 256u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle 8043 oracle 257u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle 8043 oracle 258u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle 8045 oracle 256uW REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle 8045 oracle 257uW REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle 8045 oracle 258uW REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle 8051 oracle 258u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle 8051 oracle 259u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle 8051 oracle 260u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle 8278 oracle 257u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle 8278 oracle 258u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle 8278 oracle 259u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl

[root@hrtestdb ~]# ps -ef | grep /data/oracle |grep -v grep |cut -c 9-15 |xargs kill -s 9

或

[root@hrtestdb ~]# lsof /data |cut -c 9-13 |xargs kill -s 9

或

[root@hrtestdb ~]# fuser –k /data

2.卸载文件系统

[root@hrtestdb ~]#umount /data

3.重新装载文件系统

mount nfs目录的方法：
mount -t nfs hostname(orIP):/directory /mount/point

[oracle@hrtestdb ~]# df -h
/dev/mapper/VolGroup-lv_root   18G      4.4G   13G     27%     /
tmpfs                  　　　　　　　 1.9G    1.8G    140M 93%     /dev/shm
/dev/sda1                                  485M   37M    423M   8%     /boot
10.5.6.250:/nfs/hrtestdb            178G    74G     95G    44%   /data

[root@hrtestdb ~]#mount -t nfs -o nolock 10.5.6.250:/nfs/hrtestdb /data

自动挂载存储

1.在/etc/fstab 添加自动挂载,如下配置格式

# <file system> <mount point> <type> <options> <dump> <pass>

[root@hrtestdb etc]# vi fstab

#
# /etc/fstab
# Created by anaconda on Mon Jan 20 09:49:11 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/VolGroup-lv_root /                       ext4    defaults        1 1
UUID=90bc6e34-39f4-45b1-a68b-8c5ecc81d7e0 /boot                   ext4    defaults        1 2
/dev/mapper/VolGroup-lv_swap swap                    swap    defaults        0 0
tmpfs                  /dev/shm                tmpfs   defaults        0 0
devpts                 /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                       sysfs    defaults        0 0
proc                    /proc                     proc     defaults        0 0
10.5.6.250:/nfs/hrtestdb    /data       nfs       defaults        0 0

自动挂载存储

或:

添加到 /etc/rc.d/rc.local

　　2.把mount 的命令放到/etc/rc.d/rc.local 里面去，vi /etc/rc.d/rc.local ，然后在rc.local 中配置挂载命令:
　　　　mount -t nfs -o nolock 10.5.6.250:/nfs/hrtestdb /data