When upgrading to MySQL Enterprise Monitor 2.1, be aware of the following issues:
During the upgrade process, if you previously had a Query Analyzer data purge value that was greater than the standard data purge value, the historical data collection purge period is set to the Query Analyzer purge period. This is logged in the upgrade log with the following notice:
getDataCollectionPurgeLifespan now: 4 weeks (was: 2 weeks)
