Uploading solaris mpm files fails with the error '500 Internal Server Error'

Issue

• Uploading solaris mpm files fails with the 500 Internal Server Error error as follows:

      bash-3.00# rhnpush -n 5 -c solaris-10-blastwave-i386 CSWffmpeg-0.4.9-2005.10.27_rev\=pre1_PSTAMP_2005.10.27.17.26.i386-solaris.mpm 
      Red Hat Network username: xxx
      Red Hat Network password: 
      Internal server error 500 Internal Server Error
      Error pushing CSWffmpeg-0.4.9-2005.10.27_rev=pre1_PSTAMP_2005.10.27.17.26.i386-solaris.mpm: Error 500 (500)
      Waiting 3 seconds and trying again...
  

• Following http errors can be observed in the log file:

      Exception Handler Information
      Traceback (most recent call last):
        File "/usr/share/rhn/server/apacheUploadServer.py", line 102, in _wrapper
          ret = function(req)
        File "/usr/share/rhn/upload_server/handlers/package_push/package_push.py", line 135, in handler
          relative_path=self.rel_package_path, org_id=self.org_id)
        File "/usr/share/rhn/server/rhnPackageUpload.py", line 175, in push_package
          importer.run()
        File "/usr/share/rhn/server/importlib/importLib.py", line 651, in run
          self.submit()
        File "/usr/share/rhn/server/importlib/packageImport.py", line 322, in submit
          raise
        File "/usr/share/rhn/server/importlib/packageImport.py", line 509, in _import_signatures
          for package in self.batch:
        File "/usr/lib/python2.4/site-packages/spacewalk/common/rhn_rpm.py", line 276, in get_package_header
          hdr = ts.hdrFromFdno(file_desc)
        File "/usr/lib/python2.4/site-packages/spacewalk/common/rhn_rpm.py", line 110, in hdrFromFdno
          return self.ts.hdrFromFdno(fd)
      error: error reading package header
  
      RHN 12501 2011/04/21 00:06:10 -04:00: ('Unhandled exception',)