Hi,
I've used Logstash to import a csv-file which works great and all was looking good but then I tried another csv-file and then I saw something strange. In Kibana I saw that the headers of the file are also in the values and I have no idea why this has happened.
My dataset looks more or less like this (in bold the column names):
C1 C2 C3
10 AB 15
20 CD 12
30 EF 16
This is the .conf I use to index a csv-file:
input
{
file
{
path => "/home/denny/test.csv"
start_position => "beginning"
ignore_older => 0
sincedb_path => "/dev/null"
}
}
filter
{
csv {
columns => ["C1", "C2", "C3 ]
separator => ","
}
}
output
{
elasticsearch {
action => "index"
hosts => "localhost"
index => "test"
workers => 1
}
stdout {}
}
And once it has been indexed and I go to Kibana. I grab the new index and then I go to Discover. Then I click on a column and I see that the name of the column is also present in the values. So when I visualize a bar chart then the column names will also have a bar of its own .
I did not encounter this with the first csv I have indexed with Logstash so I find it strange why this would happen and I hope someone can enlighten me 
EDIT: The first csv-file was one I downloaded from the internet to try it out (the titanic dataset from Kaggle), this dataset has been made by me with Excel.