I'm trying to parse the access log from NGINX with Logstash but, I get an _jsonparsefailure although I'm not using a JSON format. Why do I get that _jsonparsefailure? My input lines are like nginx: 127.0.0.1 - - [24/Oct/2016:10:34:59 +0200] "GET /app/kibana HTTP/1.1" 200 5018 "-" "curl/7.19.7 (x86…

Logstash with Grok and _jsonparsefailure

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Logstash with Grok and _jsonparsefailure