The regression happened during the move to HTTPS, which was April of 2017 (wow 
that was a long time ago). You can see from the logs available at 
ftp://podaac.jpl.nasa.gov/misc/outgoing/cjf/mudrod/2017/04/, that the WWW.* 
artifacts contain the combined log format, whereas the WWWssl logs do not! 
Example are below
 
Combined Log Format (Pre HTTPS/SSL Migration < April 2017)
```
198.118.243.84 - - [29/Apr/2017:00:00:49 +0000] "GET 
/announcements/2016-08-29_RapidScat_Data_Loss_from_Power_Outage HTTP/1.1" 302 
274 "-" "gsa-crawler-earthdata (Enterprise; T5-ACQ4X8DLW7SKC; 
[email protected],[email protected])"
```

Common Log Format (Post HTTPS/SSL Migration > April 2017)
```
131.161.10.197 - - [29/Apr/2017:00:00:20 +0000] "GET 
/datasetlist?ids=Sensor:DataFormat:Collections:Measurement&values=SMAP_RADIOMETER:HDF5:Aquarius-CAP:Salinity%252525252525252FDensity
 HTTP/1.1" 200 86612
```
You can clearly see the absence of the Referrer and User Agent in the Common 
Log Format.
 
Addressing this regression is a priority and it does not have an adverse impact 
on the Webserver performance as this information is already cached in the 
WebServer we simply do not log it anymore. I'm working to get this fixed.

[ Full content available at: 
https://github.com/apache/incubator-sdap-mudrod/pull/32 ]
This message was relayed via gitbox.apache.org for [email protected]

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