RE: Restore problem

From: Robert Freeman <robertgfreeman_at_yahoo.com>
Date: Mon, 7 May 2007 08:06:53 -0600
Message-ID: <KEEDIPJOJLCHPPAIDPDOAEPODOAA.robertgfreeman@yahoo.com>

This is great information Ted, thanks!!

Robert G. Freeman
Oracle Consultant/DBA/Author
Principal Engineer/Team Manager
The Church of Jesus Christ of Latter-Day Saints Father of Five, Husband of One,
Author of various geeky computer titles
from Osborne/McGraw Hill (Oracle Press)
Sig V1.1

  -----Original Message-----
  From: Ted Coyle [mailto:oracle-l_at_webthere.com]   Sent: Monday, May 07, 2007 7:22 AM
  To: robertgfreeman_at_yahoo.com; jkstill_at_gmail.com; wbfergus_at_gmail.com   Cc: oracle-l_at_freelists.org
  Subject: RE: Restore problem

On Windows, the best tool to use to discover what is “locking” a file or other process is Sysinternal’s procexp.exe.

Handle is great, but in this case the GUI is a little better.

The “find” option is particularly helpful in this situation. It will pinpoint exactly what is attached to a file or process and has easy options to kill the process tree.

http://www.microsoft.com/technet/sysinternals/utilities/ProcessExplorer.ms px

I’ve not had to reboot a box because of file locks since I started using this tool years ago.

The locking issue is not with Windows, it is with how Oracle calls and uses the Windows file object class via the Service Container. I’ve created lots of apps that don’t have this problem. I don’t know why Oracle can’t figure it out. I always laugh when it happens because it seems so unnecessary. J

Ted

  From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Robert Freeman
  Sent: Sunday, May 06, 2007 9:40 PM
  To: jkstill_at_gmail.com; wbfergus_at_gmail.com   Cc: oracle-l_at_freelists.org
  Subject: RE: Restore problem

I will add.... I've seen times that Windows will lock files and it dosen't matter what you do (including killing the service) the only way to get that lock released is to reboot the box. THAT is a pain.

  Robert G. Freeman
  Oracle Consultant/DBA/Author
  Principal Engineer/Team Manager
  The Church of Jesus Christ of Latter-Day Saints   Father of Five, Husband of One,
  Author of various geeky computer titles   from Osborne/McGraw Hill (Oracle Press)   Sig V1.1

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Jared Still

    Sent: Sunday, May 06, 2007 3:11 PM
    To: wbfergus_at_gmail.com
    Cc: oracle-l_at_freelists.org
    Subject: Re: Restore problem

On 5/4/07, Bill Ferguson <wbfergus_at_gmail.com> wrote:

Hi all,

      channel ORA_DISK_1: restored backup piece 14
      piece handle=E:\BACKUP\BACKED UP DATA\AJIGLMEM_14_1.BAK
tag=TAG20070501T220157
      channel ORA_DISK_1: reading from backup piece E:\BACKUP\BACKED UP
DATA\AJIGLMEM_15_1.BAK
      ORA-19870: error reading backup piece E:\BACKUP\BACKED UP

DATA\AJIGLMEM_15_1.BAK ORA-19504: failed to create file
"E:\ORACLE\DATAFILES\NGDB_DATA_06.DBF"

      ORA-27086: unable to lock file - already in use
      OSD-00002: additional error information
      O/S-Error: (OS 32) The process cannot access the file because it is
being used b
      y another process.
      failover to previous backup

Hi Bill,

Taking a tablespace offline on windows does not seem to remove the lock that Oracle has on it.

When a file is open, the process has a lock (don't know the windows technical term for the

type of lock)

Just tested this on my laptop: took 10g tablespace EXAMPLE offline, and the handle utility

(from Sys Internals toolkit) shows that the EXAMPLE files are still open by Oracle:

oracle.exe pid: 2848 NT AUTHORITY\SYSTEM

        c: File          C:\WINDOWS\SYSTEM32
       d8: Section       \BaseNamedObjects\*oraspawn_buffer_ts50*
       f4: Section       \BaseNamedObjects\ShimSharedMemory
    ...
      624: File          C:\oracle\product\10.1.0\oradata\ts50\USERS01.DBF
      628: File          C:\oracle\product\10.1.0\oradata\ts50\EXAMPLE01.DBF
      62c: File          C:\oracle\product\10.1.0\oradata\ts50\EXAMPLE01.DBF
    ...
      664: File          C:\oracle\product\10.1.0\oradata\ts50\SYSTEM01.DBF
      668: File          C:\oracle\product\10.1.0\oradata\ts50\SYSTEM01.DBF
      66c: File          C:\oracle\product\10.1.0\oradata\ts50\UNDOTBS01.DBF

...

I've never restored a tablespace on Windows, but it appears that your procedure may need to be modified a bit.

Have you tried restoring the tablespace with Oracle in mount mode?

Our resident RMAN expert (Robert Freeman) may know the answer to this.

    --
    Jared Still
    Certifiable Oracle DBA and Part Time Perl Evangelist

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http://www.freelists.org/webpage/oracle-l Received on Mon May 07 2007 - 09:06:53 CDT