Relevant telegraf.conf:

[[inputs.file]]
  files = ["/data/siem/input/*.csv"]
  data_format = "csv"
  csv_header_row_count = 1

System info:

Steps to reproduce:

1. use two or more csv files for input but set different headers rows there

Expected behavior:

Read header row from every file in the input list and use it for ongoing metrics.

Actual behavior:

Telegraf when started reads header row only from the first file of “files = [”/data/siem/input/*.csv"]" and uses it for the next file which has its own different header row.

Additional info:

I just removed the column names check from the source. But ideally this should be configurable behavior.
Below are diffs for
~/go/src/github.com/influxdata/telegraf/plugins/parsers/csv/parser.go

> 64c64
-       if len(p.ColumnNames) == 0 {
> ---
+ //    if len(p.ColumnNames) == 0 {
> 84,89c84,89
-       } else {
-               // if columns are named, just skip header rows
-               for i := 0; i < p.HeaderRowCount; i++ {
-                       csvReader.Read()
-               }
-       }
> ---
+ //    } else {
+ //            // if columns are named, just skip header rows
+ //            for i := 0; i < p.HeaderRowCount; i++ {
+ //                    csvReader.Read()
+ //            }
+ //    }