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标签归档:ORA-27086
ORA-27086: skgfglk: unable to lock file – already in use
使用nas存储存放控制文件,数据文件的数据库服务器,因为突然断电后,数据库系统无法正常启动,报ORA-27086: skgfglk: unable to lock file – already in use错误,通过分析是因为netapp的nfs锁导致该故障.本文为同事的处理过程记录
数据库启动报错
[oraprod@erpdb dbs]$ sqlplus "/ as sysdba" SQL*Plus: Release 9.2.0.6.0 - Production on Thu May 29 22:03:00 2014 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 581506668 bytes Fixed Size 452204 bytes Variable Size 402653184 bytes Database Buffers 167772160 bytes Redo Buffers 10629120 bytes ORA-00205: error in identifying controlfile, check alert log for more info
alert日志
Thu May 29 23:37:56 2014 ORA-00202: controlfile: '/erpdata/PROD/proddata/cntrl01.dbf' ORA-27086: skgfglk: unable to lock file - already in use Linux Error: 11: Resource temporarily unavailable Additional information: 8 Thu May 29 23:37:56 2014 ORA-205 signalled during: ALTER DATABASE MOUNT...
查看控制文件
[oraprod@erpdb ~]$ ls -ltr /erpdata/PROD/proddata/cntrl01.dbf -rw-r----- 1 oraprod dba 16293888 May 30 2014 /erpdata/PROD/proddata/cntrl01.dbf [oraprod@erpdb ~]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 97G 4.3G 87G 5% / /dev/sda1 190M 12M 169M 7% /boot none 8.0G 0 8.0G 0% /dev/shm /dev/sdb1 577G 169G 379G 31% /erpdata /dev/sdb2 241G 16G 213G 7% /oracle /dev/sda3 9.7G 55M 9.1G 1% /tmp 192.168.1.13:/vol/vol1/backup 1.4T 199G 1.3T 14% /erpdbbak 192.168.1.11:/vol/vol1/erpdb 150G 84G 67G 56% /erpdata/PROD
这里可以看出来,控制文件是存在的,但是控制文件是存放在nfs中,重试umount/mount /erpdata/PROD文件系统,问题依旧.检查nfs系统所在存储(netapp存储)锁情况
nas设备锁情况
netapp2*> priv set advanced netapp2*> lock status -h ======== NLM host erpdb.xifenfei.com 10688 0x01b70b28:0x00b83a2c 0:0 1 GRANTED (0x000000005fc63a58) 10688 0x01b70b28:0x00b83a2b 0:0 1 GRANTED (0x000000005fc63398) 10686 0x01b70b28:0x0135d0b3 0:0 1 GRANTED (0x0000000065f73a58) 10686 0x01b70b28:0x0135d0b2 0:0 1 GRANTED (0x00000000161a3b78) 10686 0x01b70b28:0x0135d0b1 0:0 1 GRANTED (0x00000001286246f8) ………… 10686 0x01b70b28:0x01770860 0:0 1 GRANTED (0x000000007e8fb938) 10690 0x01b70b28:0x007adc2a 0:0 1 GRANTED (0x0000000133e7e818) 10690 0x01b70b28:0x007adc29 0:0 1 GRANTED (0x00000000161a3c98) 10690 0x01b70b28:0x007adc28 0:0 1 GRANTED (0x000000017a2606f8)
使用相关命令解锁
storage*> sm_mon -l erpdb.xifenfei.com storage*> lock status -h
启动数据库恢复正常
查询mos文档,发现相关文章主要有:
NFS Locking Problems Encountered During Database Startup (Doc ID 236794.1)
ORA-1157 ORA-1110 ORA-27086 Starting up Database (Doc ID 145194.1)