Large ETLTraces folder

Hello,
I have a new Exchange 2013 server. There is a folder "c:\program files\microsoft\exchange server\v15\bin\search\ceres\diagnostics\etltraces" that seems to churn DocumentProcessingTrace_???.etl files constantly (where ??? is an incrementing number).
There are always exactly 100 files that rotate (oldest deleted) and each file is about 52MB. At least 4 per hour, sometimes more.
My issue is that these take up a bunch of space on the OS disk, and it does a lot of data writes which fragment the filesystem and create a lot of change blocks for my backup system.
What is creating these files and what are they for? More importantly, can I disable or change its location?
Thanks.

Hi Marq,
Very interesting even im facing this same issue. I could see each log file size increasing up to 50 MB.
I think there shouldn't be any harm in deleting them or copying them to a different location as these are diagnostics logging generated from kerberos.
But we need to find a solution to move these files to a different drive path or reducing the size or disabling them .
Could somebody throw light on this .Any help with regards to the same is much appreciated3
Thanks in Advance
Remember to mark as helpful if you find my contribution useful or as an answer if it does answer your question.That will encourage me - and others - to take time out to help you Check out my latest blog posts on http://exchangequery.com
These are not related to Kerberos. They are generated from the searching/indexing engine.
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