> On 23 Sep 2016, at 14:49, Kumar, Piyush <piyush.ku...@atos.net> wrote: > > Hi All, > > I am currently using XWiki 4.2 war deployed on apache-tomcat and also using > MySQL DB. I am using XWiki clustered 2 based on network events distribution. > I am also using A multi-tenant setup ( "virtual mode", "multi-wiki" or "farm > mode") which allows us to have several wikis running on the same XWiki > instance (i.e. in the same JVM). I also configured Scheduled jobs to empty > trash and getting it triggered via cron expression. > > I am facing serious performance issue as Xwiki application has become very > slow and frequently results in timeout. > > To resolve the performance issue I would like to migrate my XWiki application > from version 4.2 to 8.2.1. > > Is it a good decision?
It is. Actually what you’ve done (stay very long on a very old version is not such a good idea ;) (will make the upgrade a lot more complex). Since you’re using a very old version you may want to export your data, install XWiki 8.2.1 and import your data. However see the limitations at http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Backup#HUsingtheXWikiExportfeature > If now which version can be relatively cater more performance? Also if anyone > can share the high level steps which must be followed while migration, would > be great help. Re performance you can get good perf in 4.2 too. If I had to guess I’d say you’re missing indexes in the DB, see http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances Thanks -Vincent PS: Since this is a complex operation, I’d highly suggest that you hire some xwiki experts. There are companies offering such expertise and that are sponsoring the development of the xwiki project. See http://www.xwiki.org/xwiki/bin/view/Main/Support#HProfessionalSupport > Thanks & Regards, > Piyush _______________________________________________ users mailing list email@example.com http://lists.xwiki.org/mailman/listinfo/users