ora_setup taking a long time, stuck on shareplex_rowidmap table (30833)

Upgrading Shareplex from 4.0 to 5.1.    Supplemental logging was not on.   Ora_setup looked as if it were hanging on shareplex_rowidmap table.    Looked inside Oracle, saw that ora_setup was doing selects and creating an index on shareplex_rowidmap table.   So ora_setup was doing something in the background, but it was taking a long time.  

shareplex_rowidmap table had 8 million rows because supplemental logging was off and there was a lot of row chaining.   This is why it was taking a long time to create an index.

ora_setup was not really stuck, it was taking a long time to create an index due to the size of shareplex_rowidmap.   The only resolution is to wait while oracle creates the index.

This issue can be avoided by running ora_cleansp, then running ora_setup and then activating the config file.   This will work because ora_cleansp will  remove data from all  shareplex internal tables and ora_setup will be able to quickly build the required indices.  Enabling supplemental logging will also prevent this issue because shareplex_rowidmap table will not need to be maintained.   However, these may not be viable solutions for some customers.