public bool DistributedFileLogger { get; set; }

The initial location for these files is the current directory. By default, the files are named "MSBuildNodeId.log". You can use the /fileLoggerParameters switch to specify the location of the files and other parameters for the fileLogger. If you name a log file by using the /fileLoggerParameters switch, the distributed logger will use that name as a template and append the node ID to that name when creating a log file for each node.