From: Dan Zucker (daniz@netvision.net.il)
Date: Wed Jan 18 2006 - 14:14:25 EST
This utility is part of OAM - ORACLE APPLICATION MANAGER.
The following is from Oracle's Metalink.
Subject: Running Patch Advisor Destroys the Instance
Type: PROBLEM
Status: MODERATED
The information in this article applies to:
Oracle Application Object Library - Version: 11.5.9
This problem can occur on any platform.
Symptoms
Running patch advisor (submitted request is AnalyzeSpecificPatches) from
Oracle Applications Manager creates a java process
Java_java_io_UnixFileSystem_delete which deletes the entire file system and
hence completely destroying the instance.
Everything under $APPL_TOP gets deleted and hence the entire system is lost.
The command $ strings -a core.22462 |grep Unix gives the following output:
aJava_java_io_UnixFileSystem_delete
Java_java_io_UnixFileSystem_delete
java/lang/StJava_java_io_UnixFileSystem_delete
java/io/UnixFileSystem
UnixFileSystem.java
java/io/UnixFileSystem
Cause
If the STAGING_DIRECTORY in applsys.ad_pm_master is empty then this triggers
the complete process.
There is no validation of staging directory in UI as well as concurrent
program. The current code logic creates a temporary directory 'APPSYSNAME'
under staging directory and upon completion of process delete the directory
recursively.
In the above case, two factors led to the collapse of system
- Missing (Undefined) staging directory
- Application system name and APPL_TOP name being same.
Fix
11.5.9
The patch 3584462 for RPLBundle will take care of this issue. This has
necessary validations for staging directory. This fix might be released in
July/August.
11.5.10
Necessary validations are present in the concurrent programs. However we
can still validate the staging directory in Recommend Patches UI.
References
Bug 3699168 - Running Patch Advisor Completely Destroys The Instance
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