We just bought a host license and are kicking the tires out of it now, on a new install of DNN 4.9.0. So far, we're very impressed! We're seeing lots of tracing files appearing in the install folder though, every few minutes these files are updated with:

12:00:00 AM: Cloaker-Entering
12:00:00 AM: Cloaker-Leaving
12:00:00 AM: Cloaker-Entering
12:00:00 AM: Cloaker-Leaving
12:00:00 AM: Cloaker-Entering
12:00:00 AM: Cloaker-Leaving
12:00:00 AM: Cloaker-Entering
etc.

It would seem this shouldn't be happening in release code. Maybe it was there from your debugging and you forgot to remove it? Here's the relevant tracing information from our web.config:

<system.diagnostics>

    <switches>

      <!-- TracingSwitch - "EnableTracing"

                                                                Trace Level                                                                         Value                    Description

                                                                TraceLevel.Off                                                  0                                              Output no tracing and debugging messages.

                                                                TraceLevel.Error                                               1                                              Output error-handling messages.

                                                                TraceLevel.Warning                                        2                                              Output warnings and error-handling messages.

                                                                TraceLevel.Info                                                 3                                              Output informational messages, warnings, and error-handling messages.

                                                                TraceLevel.Verbose                                        4                                              Output all debugging and tracing messages.

                                                -->

      <add name="EnableTracing" value="3" />

    </switches>

    <trace autoflush="true">

      <listeners>

        <add name="DotNetNukeTrace" type="System.Diagnostics.TextWriterTraceListener, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" initializeData="dotnetnuke.trace.log" />

      </listeners>

    </trace>

  </system.diagnostics>

Whoops... this turned out to be a different module causing this. Sorry for the bother. Thanks Bruce!