The message in Ensemble has been retained for only 20 days, but the amount of data is still more than 300G. What should be done to reduce the storage capacity?

Hi

Remember that not only messages contribute to the volume of ensemble generated data. If you are using $$$TRACE in your production then this will generate a lot of data in the Ensemble namespace . If you have lots of TRACE statements then this can generate a lot of data.

There is a class method

do ##class(Ens.Purge).PurgeEventLogsByDate({NumberOfDaysToRetainTraceData},.count) There are other methods in this class to purge other management data such as messages

Trace information is stored in the global  ^Ens.Util.LogD and  ^Ens.Util.LogI

Nige;