ORA-27054錯誤處理

標籤：oracle   rac   27054   

今天在虛擬機器環境下做實驗，在將rac環境修改為flashback on時，報出了ORA-27054錯誤，錯誤碼如下：

Errors in file /u01/app/oracle/admin/racdb/udump/racdb2_ora_25551.trc:ORA-38701: Flashback database log 2 seq 1 thread 2: "/u01/flashback/RACDB/flashback/o1_mf_%u_.flb"ORA-27054: NFS file system where the file is created or resides is not mounted with correct options

從錯誤描述可以看出，閃回目錄是通過nfs檔案系統來實現的，而系統掛載nfs時，採用了錯誤的參數選項，導致oracle報錯。上網查資料，通過文檔359515.1順利解決問題。整理部分內容如下：

RAC  

In the table below

• Binaries is the shared mount points where the Oracle Home and CRS_HOME is installed.
• Datafiles includes Online Logs, Controlfile and Datafiles

Operating System	Mount options for Binaries	Mount options for Oracle Datafiles	Mount options for CRS Voting Disk and OCR
Sun Solaris *	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp, noac,vers=3,suid	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,noac, forcedirectio, vers=3,suid	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,vers=3, noac,forcedirectio
AIX (5L) **	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,vers=3, timeo=600	cio,rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,noac, vers=3,timeo=600	cio,rw,bg,hard,intr,rsize=32768, wsize=32768,tcp,noac, vers=3,timeo=600
HPUX 11.23 ****  –	rw,bg,vers=3,proto=tcp,noac, hard,nointr,timeo=600, rsize=32768,wsize=32768,suid	rw,bg,vers=3,proto=tcp,noac, forcedirectio,hard,nointr,timeo=600, rsize=32768,wsize=32768,suid	rw,bg,vers=3,proto=tcp,noac, forcedirectio,hard,nointr,timeo=600 ,rsize=32768,wsize=32768,suid
Linux x86 #	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp, vers=3, timeo=600, actimeo=0	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,actimeo=0, vers=3,timeo=600	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,noac,vers=3, timeo=600
Linux x86-64 #	rw,bg,hard,nointr,rsize=32768,  wsize=32768,tcp,vers=3, timeo=600, actimeo=0	rw,bg,hard,nointr,rsize=32768,  wsize=32768,tcp,actimeo=0,  vers=3,timeo=600	rw,bg,hard,nointr,rsize=32768,  wsize=32768,tcp,vers=3, timeo=600,noac
Linux – Itanium	rw,bg,hard,nointr,rsize=32768,  wsize=32768,tcp,vers=3, timeo=600, actimeo=0	rw,bg,hard,nointr,rsize=32768,  wsize=32768,tcp,actimeo=0,  vers=3,timeo=600	rw,bg,hard,nointr,rsize=32768,  wsize=32768,tcp,noac,vers=3, timeo=600

* NFS mount option “forcedirectio” is required on Solaris platforms when mounting the OCR/CRS files when using Oracle 10.1.0.4 or 10.2.0.2 or later (Oracle unpublished bug 4466428) 
** AIX is only supported with NAS on AIX 5.3 TL04 and higher with Oracle 10.2.0.1 and later (NetApp) 
*** NAS devices are only supported with HPUX 11.23 or higher ONLY 

# These mount options are for Linux kernels 2.6 and above for older kernels please check Note 279393.1

Due to Unpublished bug 5856342, it is necessary to use the following init.ora parameter when using NAS
with all versions of RAC on Linux (x86 & X86-64 platforms) until 10.2.0.4. This bug is fixed and included in 10.2.0.4 patchset.
filesystemio_options = DIRECTIO Single Instance

Operating System	Mount options for Binaries	Mount options for Oracle Datafiles
Sun Solaris * (8, 9, 10)	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, proto=tcp,suid	rw,bg,hard,rsize=32768, wsize=32768,vers=3,[forcedirectio or llock], nointr,proto=tcp,suid
AIX (5L) **	rw,bg,hard,rsize=32768, wsize=32768,vers=3,intr, timeo=600,proto=tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,cio,intr, timeo=600,proto=tcp
HPUX 11.23 ****	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,proto=tcp,suid	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,proto=tcp,suid
Linux x86 #	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp,actime=0*
Linux x86-64 #	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp,actime=0*
Linux – Itanium	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp

* actime=0 or noac can be used

參照上文，修改mount參數如下：

[[email protected] bdump]# cat /etc/rc.d/rc.local#!/bin/sh## This script will be executed *after* all the other init scripts.# You can put your own initialization stuff in here if you don't# want to do the full Sys V style init stuff.touch /var/lock/subsys/localservice iscsi restart#start_udevmodprobe hangcheck-timermount -t nfs -o rw,bg,noac,hard,nointr,rsize=32768,wsize=32768,nolock,proto=tcp,actimeo=0,vers=3,timeo=600 192.168.2.31:/u01/flashback/ /u01/flashback/

問題成功解決！

另外，在網上查到資料，還可以使用如下方式解決

1：設定事件10298 level 32

alter system set event=‘10298 trace name context forever,level 32‘ scope=spfile;

重新啟動資料庫後生效.

2：打補丁:5146667

 我沒有實驗，有興趣的朋友可以試試，