process TEST = { service = MessageLogger { vstring destinations = { "detailedInfo.txt" , "critical.txt" , "cout" , "cerr" } PSet critical.txt = { string threshold = "ERROR" } PSet detailedInfo.txt = { string threshold = "INFO" } PSet cerr = { string threshold = "WARNING" } } untracked PSet maxEvents = {untracked int32 input = 5} path p = { myAnalysisModule } module myAnalysisModule = ModuleThatIssuesMessages { } source = EmptySource { } }The string threshold = "INFO" parameter in the PSet configuring detailedInfo.txt tells the destination producing the file critical.txt to ignore all messages with severity below INFO. Since only message issued using LogDebug are below this severity, this means that detailedInfo.txt can react to all non-debug messages but will ignore debug messages.