# Unexpected Error when reading a csv log data

**URL:** <https://discuss.elastic.co/t/unexpected-error-when-reading-a-csv-log-data/77147>\
**Category:** Logstash\
**Created:** [March 2, 2017, 1:40pm UTC](https://discuss.elastic.co/t/unexpected-error-when-reading-a-csv-log-data/77147 "2017-03-02T13:40:48Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\
**Post date:** [March 2, 2017, 1:40pm UTC](https://discuss.elastic.co/t/unexpected-error-when-reading-a-csv-log-data/77147/1 "2017-03-02T13:40:48Z")

</div>

I am creating index from csv data. I got error as below. What is the problem ??

07:31:56.196 [[main]-pipeline-manager] INFO logstash.pipeline - Pipeline main started  
07:31:56.335 [LogStash::Runner] FATAL logstash.runner - An unexpected error occurred! {:error=\>#\<IOError: Unable to establish loopback connection\>, :backtrace=\>["org/jruby/RubyIO.java:4627:in  
`pipe'", "org/jruby/RubyIO.java:4604:in`pipe'", "C:/ElasticProducts/logstash-5.2.0/vendor/bundle/jruby/1.9/gems/puma-2.16.0-java/lib/puma/util.rb:18:in `pipe'", "C:/ElasticProducts/logstash-5 .2.0/vendor/bundle/jruby/1.9/gems/puma-2.16.0-java/lib/puma/server.rb:54:in`initialize'", "C:/ElasticProducts/logstash-5.2.0/logstash-core/lib/logstash/webserver.rb:87:in `start_webserver'", "C:/ElasticProducts/logstash-5.2.0/logstash-core/lib/logstash/webserver.rb:44:in`run'", "org/jruby/RubyRange.java:479:in `each'", "org/jruby/RubyEnumerable.java:974:in`each\_with\_index'", "C:  
/ElasticProducts/logstash-5.2.0/logstash-core/lib/logstash/webserver.rb:39:in `run'", "C:/ElasticProducts/logstash-5.2.0/logstash-core/lib/logstash/agent.rb:198:in`start\_webserver'"]}

attaching the conf file and template below.

input {  
file {  
path =\> ["C:/ElasticProducts/IncidentTestData.csv"]  
start\_position =\> "beginning"  
sincedb\_path =\> "/dev/null"  
}  
}  
filter {  
csv {  
columns =\> ["ITIL\_Incident\_ID","Incident\_Number","Incident\_Create\_Date","Incident\_Created\_By\_Name","P1\_Incident\_Flag"]  
separator =\> ","  
}  
date {  
match =\> ["Incident\_Create\_Date" , "MM/dd/YY HH:mm"]  
}  
mutate {  
convert =\> { "ITIL\_Incident\_ID" =\> "integer"  
"P1\_Incident\_Flag" =\> "boolean"  
"Incident\_Number" =\> "string"  
"Incident\_Created\_By\_Name" =\> "string"  
}  
}  
}  
output {  
elasticsearch {  
hosts =\> ["localhost:9200"]  
user =\> "elastic"  
password =\> "changeme"  
# protocol =\> "http"  
index =\> "csv"  
template =\> "C:/ElasticProducts/csv1.json"  
document\_id =\> "%{ITIL\_Incident\_ID}"  
document\_type =\> "csv"  
}  
stdout {  
codec =\> rubydebug  
}  
}

Template as below

{  
"template" : "csv",  
"settings": { "index.refresh\_interval": "5s" },  
"mappings" : {  
"csv" : {  
"properties": {  
"Incident\_Number": { "type": "string" },  
"Incident\_Create\_Date": { "type": "date", "format" : "MM/dd/YY HH:mm" },  
"Incident\_Created\_By\_Name": { "type": "string" },  
"P1\_Incident\_Flag": { "type": "boolean" }  
}  
}  
}  
}

---

<div class="post-metadata">

**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [March 6, 2017, 6:51am UTC](https://discuss.elastic.co/t/unexpected-error-when-reading-a-csv-log-data/77147/2 "2017-03-06T06:51:35Z")

</div>

Please format the log snippet as preformatted text so we can see what actually comes after `An unexpected error occurred! {:error=>#`.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 3, 2017, 6:51am UTC](https://discuss.elastic.co/t/unexpected-error-when-reading-a-csv-log-data/77147/3 "2017-04-03T06:51:44Z")

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