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How to resolve Splunk "StatsFileWriterLz4" write failed file?

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HI Splunk pals, 

I am getting an error when trying to write a relatively large file using tstats. 

splunk "StatsFileWriterLz4" write failed file=<path_to_file>.lz4

The SPL is a tstats query that creates a massive data table used as a base search to power several reports in a dashboard.

I know that the LZ4 application took over for Gzip in Splunk version 6-7 or something. I have yet to find any other docs on how to begin troubleshooting this issue. 

I would paste my SPL, but I have a customer that ... let's say would be less than happy with me sharing this info. 

Any suggestions are welcome!

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