Description of problem:
This happened during a reposync of rhel5 content, specifically setroubleshoot-2.0.5-5.el5-0.noarch.  It looks as if the offending text is in the section of the changelog titled:
* Mon Sep 24 2007 John Dennis <jdennis> - 1.10.5-1
...
 - update Polish translation (Piotr Drąg (raven))
...
which is 3201 bytes.

Exception Handler Information
Traceback (most recent call last):
  File "/usr/share/rhn/satellite_tools/reposync.py", line 141, in import_packages
    self.upload_package(pack, path, md5)
  File "/usr/share/rhn/satellite_tools/reposync.py", line 168, in upload_package
    org_id=self.channel['org_id'])
  File "/usr/share/rhn/server/rhnPackageUpload.py", line 168, in push_package
    importer.run()
  File "/usr/share/rhn/server/importlib/importLib.py", line 628, in run
    self.submit()
  File "/usr/share/rhn/server/importlib/packageImport.py", line 308, in submit
    transactional=self.transactional)
  File "/usr/share/rhn/server/importlib/backend.py", line 745, in processPackages
    transactional=transactional)
  File "/usr/share/rhn/server/importlib/backend.py", line 1585, in __processObjectCollection__
    return self.__doDML(dml)
  File "/usr/share/rhn/server/importlib/backend.py", line 1693, in __doDML
    self.__doInsert(dml.insert, dml.tables)
  File "/usr/share/rhn/server/importlib/backend.py", line 1702, in __doInsert
    raise rhnFault(54, str(e[1]), explain=0)
rhnFault: (54, 'ORA-12899: value too large for column "SWUSER"."RHNPACKAGECHANGELOG"."TEXT" (actual: 3004, maximum: 3000)\n', '\n   
  Package Upload Failed due to uniqueness constraint violation.\n     Make sure the package does not have any duplicate dependencies
 or\n     does not already exists on the server\n     ')


Version-Release number of selected component (if applicable):
spacewalk-0.6

How reproducible:
rhnpush/reposync setroubleshoot into spacewalk (we had NLS_LANG=english.AL32UTF8 at one point, which may have caused that single 'ą' character to become a 4-byte wide character...?)

Steps to Reproduce:
1. set NLS_LANG to english.AL32UTF8
2. rhnpush/reposync/etc setroubleshoot
3. receive error
  
Actual results:
traceback

Expected results:
no traceback

Additional info:
rhbz 488195#c25 and in general that entire bug are probably related.  We are temporarily working around it the same way - bumping the text field to 4000 characters.

# cat /etc/sysconfig/i18n 
LANG="en_US.UTF-8"
SYSFONT="latarcyrheb-sun16"

We recently commented out a few places 
The database was created like:

create database
...
  character set AL32UTF8
...

Commenting out NLS_LANG=english.AL32UTF8 in /etc/sysconfig/httpd "fixed" another oracle/character encoding bug, #524265