I am upgrading from TeamSite 7.4.1 to 8.1.0. It is always getting stuck at 48% for more than a hour. We didn't face any issues on Test environment. This was our production server. So, had to roll back to VM snapshot quickly and couldn't save any other log. I have already raised support case but yet to get anything definitive. Any poitners would be helpful. This is the portion where it got stuck 4 times.
2016-07-05 13:57:37,071 DEBUG com.interwoven.wcm.install.framework.InstallDocumentManager - InitializeUpgradeEnv completed
2016-07-05 13:57:37,071 INFO com.interwoven.wcm.install.framework.DocumentCompositeTask - Executing: IWPerlMunge
2016-07-05 13:57:37,086 DEBUG com.interwoven.serverutils100.TProcessRunner - TProcessRunner:
2016-07-05 13:57:37,086 DEBUG com.interwoven.serverutils100.TProcessRunner - About to execute:
2016-07-05 13:57:37,086 DEBUG com.interwoven.serverutils100.TProcessRunner - C:\Interwoven\TeamSite\iw-perl\bin\iwperl.exe C:\Interwoven\TeamSite\install\iwperlmunge.ipl -verbose C:\Interwoven\TeamSite
2016-07-05 13:57:50,211 DEBUG com.interwoven.wcm.teamsite.install.tasks.perl.IWPerlMunge - estimated duration=26, progress=0, increment=14
2016-07-05 13:58:15,586 DEBUG com.interwoven.wcm.teamsite.install.tasks.perl.IWPerlMunge - estimated duration=26, progress=14, increment=3
2016-07-05 13:58:53,273 DEBUG com.interwoven.wcm.teamsite.install.tasks.perl.IWPerlMunge - estimated duration=26, progress=17, increment=3
2016-07-05 13:59:46,679 DEBUG com.interwoven.wcm.teamsite.install.tasks.perl.IWPerlMunge - estimated duration=26, progress=20, increment=3
2016-07-05 13:59:50,039 DEBUG com.interwoven.wcm.teamsite.install.tasks.perl.IWPerlMunge - estimated duration=26, progress=23, increment=3
2016-07-05 13:59:50,492 DEBUG com.interwoven.wcm.teamsite.install.tasks.perl.IWPerlMunge - estimated duration=26, progress=26, increment=3
Thank you.