Ranger logs are in gz format - is there any way of extracting in the Nifi flow?

@robnew 

The "CompressContent" [1] processor can be used to decompress gz files.

My suggestion here since only some log files are compressed is to set up a flow that passes these FlowFiles through an "IdentifyMimeType" [2] processor.  This will write out a new mime.type attribute on the FlowFiles.  Then use a "RouteOnAttribute" [3] processor to route FlowFiles with mime.type = application/gzip (each new dynamic property becomes a new outbound relationship) to that "CompressContent" processor and the "unmatched" relationship (which will have every other non gz file) on through your flow without passing through "CompressContent" processor.   

[1] http://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.13.2/org.apache.nifi.processors.standard.CompressContent/index.html

[2] http://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.13.2/org.apache.nifi.processors.standard.IdentifyMimeType/index.html

[3] http://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.13.2/org.apache.nifi.processors.standard.RouteOnAttribute/index.html

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Thanks,

Matt