Re: OAS 4.0.7 Problem

The solution for the tree applet problem is:

Problem Description:

You are using Oracle Application Server 4.0.7 and trying to bring up the OAS
Manager Page. The right frame comes up okay, but you are receiving an error
when it starts to bring up the left frame.

The error is:

APPLET TREEAPPLET CANNOT START: ERROR You have recently made changes to Oracle Application Server from the OAS

Manager pages. This includes changes to cartridges, applications, logging,
etc.

Solution Description:

When the OAS Manager tries to bring up the left frame (Website Information),
it
parses the wrb.app file. If for some reason, the file has become corrupt, you
will receive an error when bringing up the treeapplet. If there is any error,
it will not bring up the left frame at all.

Luckily, OAS4.0 has plenty of backups of the wrb.app file.

The file wrb.app.bak is the first backup. (It was created upon installation of
the Oracle Application Server). The file wrb.app.0 is the latest backup

(most recent). You can try replacing the current wrb.app with this file
or
you may want to use wrb.app.3 or wrb.app.4.

• NOTE: Do not delete the current wrb.app, rename it to wrb.app.sav.

If you have made multiple changes you might need to go back further to one of
the older backups. Once the wrb.app file has been replaced, it should bring up
the tree applet successfully.

PURPOSE An OWS-20202 error may result in the Oracle Application Server(OAS)Manager
tree
applet failing to load, and the owsctl utility returning errors. This article
discusses one possible cause, and a resolution.

SCOPE & APPLICATION Article intended for anyone who runs into this error, to resolve the issue.

RELATED DOCUMENTS None.

Why does Bad tree item data for OWS-20202 error occur ?

Should you run out of file system space in the %ORACLE_HOME% directory, this will prevent Oracle Application Server (OAS) updating its' configuration
files correctly, and may result in corruption of the site.app and wrb.app
files.
This will result in an error Bad tree item data for OWS-20202. The OAS Manager
tree applet will fail to load (java console will report an OWS-20202 error),

and the owsctl utility will report the error also.

If this occurs, then examine both files wrb.app and site.app in the %ORACLE_HOME%\ows\admin\%ORAWEB_SITE%\wrb directory. If they seem corrupt,
then make a backup of both files.

Then copy a previous backup of both files to wrb.app and site.app
(whenever modifications are written to these files, a backup is
automatically
taken, and given a number as a file extension. For example wrb.app.9 and

site.app.9).

You may now re-load the tree applet, or try the owsctl utility again. Provided
the backup files are not corrupt, then the OWS-20202 issue should be resolved.
If the backup was corrupt, you may need to move to an earlier copy and try
that.

Note:

Reverting to a backup configuration file may result in loss of DAD and Cartridge
information (changes made between backup and now). This may be easily re-
applied,
using the OAS Manager as normal. Received on Tue Aug 24 1999 - 02:08:33 CDT