打补丁报错Opatch error : "Unable to lock Central Inventory

￡神魔★判官ぃ 2022-03-07 11:05 442阅读 0赞

**Applies to:**

Oracle Database - Enterprise Edition - Version 9.2.0.1 to 10.2.0.4 \[Release 9.2 to 10.2\]  
Information in this document applies to any platform.  
This problem can occur on any UNIX platform  
  
\*\*\*Checked for relevance on 29-Mar-2013\*\*\*

**Symptoms**

Opatch apply failing with following errors  
  
  Unable to lock Central Inventory. OPatch will attempt to re-lock.  
  Do you want to proceed? \[y|n\]  
  
Following are the messages during 'opatch apply'

\[oracle@ccuine19 5596276\]$ id  
uid=500(oracle) gid=500(oinstall) groups=100(users),500(oinstall)  
  
\[oracle@ccuine19 5596276\]$ opatch apply  
Invoking OPatch 10.2.0.4.7  
  
Oracle Interim Patch Installer version 10.2.0.4.7  
Copyright (c) 2009, Oracle Corporation.  All rights reserved.  
  
  
Oracle Home       : /db/dr/drdb/10.2.0  
Central Inventory : /etc/oraInventory  
   from           : /etc/oraInst.loc  
OPatch version    : 10.2.0.4.7  
OUI version       : 10.2.0.4.0  
OUI location      : /db/dr/drdb/10.2.0/oui  
Log file location : /db/dr/drdb/10.2.0/cfgtoollogs/opatch/opatch2009-07-22\_10-  
50-24AM.log  
  
Patch history file: /db/dr/drdb/10.2.0/cfgtoollogs/opatch/opatch\_history.txt  
  
ApplySession applying interim patch '5596276' to OH '/db/dr/drdb/10.2.0'  
Unable to lock Central Inventory.  OPatch will attempt to re-lock.  
Do you want to proceed? \[y|n\]  
y  
User Responded with: Y  
OPatch will sleep for few seconds, before re-trying to get the lock...  
  
Unable to lock Central Inventory.  OPatch will attempt to re-lock.  
Do you want to proceed? \[y|n\]

**Cause**

Cause 1: Main cause for this issue is permissions problem.  
  
Oracle user does not have WRITE permissions on "<oraInventory>/locks" in order to create writer.lock for locking the central inventory. Below is the cause justification  
  
OS user being used to apply the patch is "oracle" and permissions on 'oraInventory' contents are

\[oracle@ccuine19 oraInventory\]$ id   
uid=500(oracle) gid=500(oinstall) groups=100(users),500(oinstall)  
  
\[oracle@ccuine19 oraInventory\]$ ls -la  
total 40  
drwxrwxrwx    6 oracle oinstall   4096 Jul 20 14:27 .  
drwxr-xr-x  116 root   root      12288 Jul 21 15:42 ..  
drwxrwxrwx    2 oracle oinstall   4096 Jul  8 18:28 Contents  
drwxrwxrwx    2 oracle oinstall   4096 Jul 14 12:00 ContentsXML  
\-rwxrwxrwx    1 oracle oinstall     37 Jul 21 14:27 install.platform  
**drwxr-xr-x    2 testdb oinstall   4096 Jul 21 14:28 locks**  
drwxrwx---    2 oracle oinstall   4096 Jul 22 12:20 logs

There are two oracle users "*oracle*" and "*testdb*" sharing the same central inventory (i.e oraInventory). But some how write permissions on "*locks*" folder is set to "*testdb*" only. Which is causing "*oracle*" user unable to create *writer.lock* file inside "locks" folder and thus the error "*Unable to lock Central Inventory*".  
  
Cause 2:  
Another possible cause for this issue is previous failed/unsuccessful patching activity which leaves write.lock (in oraInventory>/locks/) and/or patch\_locked (in $ORACLE\_HOME/.patch\_storage/)  
  
[NOTE:257800.1][NOTE_257800.1] OPATCH: Interim Patch is holding the lock from this patch  
[NOTE:73123.1][NOTE_73123.1] Universal Installer / OPatch tools are Hanging and / or Fail to Install  
  
Verified and found that this issue is not due to previous failed/unsuccessful patching activity because files patch\_locked and/or writer.locked do not exist in given locations.

\[oracle@ccuine19 5596276\]$ cat /etc/oraInst.loc    
inventory\_loc=/etc/oraInventory    
inst\_group=oinstall  
\[oracle@ccuine19 5596276\]$ ls /etc/oraInventory/locks   
\[oracle@ccuine19 5596276\]$ ls $ORACLE\_HOME/.patch\_storage   
5596276\_Apr\_22\_2008\_05\_54\_46/

**Solution**

To implement the solution, please execute the following steps:  
  
1. Verify and ensure that oracle user, who is running the opatch/runInstaller command, has WRITE permissions on central inventory (i.e "*oraInventory"*) and its contents

$ ls -la <oraInventory>

2. If same central inventory (i.e oraInventory) is used for multiple Oracle Home installations using different OS user accounts (Example: 'oracle:oinstall' and 'testdb:oinstall'), then ensure that central inventory (i.e oraInventory) has GROUP (i.e oinstall) WRITE permissions so that any user account (oracle:oinstall OR testdb:oinstall) fall under same GROUP (i.e oinstall) can have proper permissions (read/write) to access/update the central inventory.  
  
3. If problem persists even after having proper WRITE permissions for oracle user, then problem is due to presence of following files (mentioned under Cause 2)  
       *<oraInventory>/locks/writer.lock*  
               and/or  
      *$ORACLE\_HOME/.patch\_storage/patch\_locked*  
Verify and ensure that these two files are not present in menitoned locations.

Following is the solution for the issue due to permissions problem

\- Grant group WRITE permissions on oraInventory folder and its contents

\# cat /etc/oraInst.loc   
inventory\_loc=/etc/oraInventory   
inst\_group=oinstall   
\# chmod -R g+w /etc/oraInventory

\- Re-try applying the patch

[NOTE_257800.1]: https://support.oracle.com/epmos/faces/ui/km/DocumentDisplay.jspx?id=257800.1
[NOTE_73123.1]: https://support.oracle.com/epmos/faces/ui/km/DocumentDisplay.jspx?id=73123.1