Logstash is not indexing data to elasticsearch

[Aryaman_Gupta]

I am not able index data from logstash to elasticsearch, hence I am not able to view the data index at the kibana UI.

This issue I saw only when, running the logstash command from the php file, I guess it's www-data user not sure, I am using nginx web server.

While this works for me when I running the command form the terminal being root user.

Please let me know what other information should I provide to further narrow down the issue.

[Mikel_U (Mikel Mikel)]

What is your logstash pipeline configuration?
You can check if logstash is processing the data viewing the output on console.
On your pipeline file:

output {
  stdout {

  }
}

If you don't visualize the data on the terminal, the problem is only in logstash. When you visualize data, then you can put the plugin to send data to elasticsearch.

output {
     elasticsearch {
              hosts => "localhost:9200"
              index => "%{type}-%{+YYYY.MM.dd}"
              user => "elastic"
              password => "xxxxxxxx"
      }
}

[Aryaman_Gupta]

Turn out that www-data doesn't have permission to write to /var/log/logstash and to other /etc/elasticsearch and logstash.

After giving permission to this user everything seem to be working fine :).