I've upgraded from Xwiki enterprise 1.3.2 to xwiki enterprise 1.6.1 on Linux Centos distro using kernel 2.6.18-53.1.21.el5. The upgrade has been performed as described in the documenation. In principle removing the old xwiki dir and copying the contents of the new 1.6.1.WAR i9 in /opt/xwiki and making changes to the xwiki.cfg file. I couldn't copy the old xwiki.cfg from the installed 1.3.2 because the contents has changed between 1.3.2 and 1.6.1. The hibernate.cfg.xml however hasn't changed between 1.3.2 and 1.6.1. In the old 1.3.1 situation by default statistics were disabled but I've enabled them. In 1.6.1 they are however enabled by default. When I go to pages like : "All time activity", "most viewed pages", "least active member" I get the message: "The statistics module is disabled by default for improved performances. For more details, see statistics home page." I've checked the xwiki.cfg file and it shows the following: # Stats configuration allows to globally activate/deactivate stats module (launch storage thread, register events...) xwiki.stats=1 # When statistics are globally enabled, storage can be enabled/disabled by wiki using the XWikiPreference property "statistics". # Note: Statistics are disabled by default for improved performances/space. xwiki.stats.default=0 # It is also possible to choose a different stats service to record statistics separately from XWiki. xwiki.stats.class=com.xpn.xwiki.stats.impl.XWikiStatsServiceImpl When I change xwiki.stats.default=0 into and stop start xWiki I get a large message like: Charting exception: Error number 0 in 5: Invalid value for the parameter domain_axis_upper_date: name:value ";"-separated list expected Wrapped Exception: Invalid value for the parameter domain_axis_upper_date: name:value ";"-separated list expected com.xpn.xwiki.XWikiException: Error number 0 in 5: Invalid value for the parameter domain_axis_upper_date: name:value ";"-separated list expected Wrapped Exception: Invalid value for the parameter domain_axis_upper_date: name:value ";"-separated list expected at As far as I can tell/see stats should be working. Any help is very much appreciated. Jan -- View this message in context: http://n2.nabble.com/Upgraded-from-1.3.2-to-1.6.1----statistics-stopped-work... Sent from the XWiki- Users mailing list archive at Nabble.com.