Index output not generated to ElasticSearch

Elastic Stack Logstash
1

In my filter I did:

mutate {
                     add_field => { "[@metadata][indexname]" => "CMServer" }
                     convert => { "cputimeinmillisec" => "float" }
                }

and my output is:

output {
         elasticsearch  { 
              hosts => ["localhost:9200"]
              index => "logstash%{[@metadata][indexname]}%{+YYYY.MM.dd}"
         }
         stdout { codec => rubydebug }
}

Output is generated to stdout, but nothing to elasticsearch.

If I set the index as below, I can see the output in elasticsearch :

index => "logstash%{[@metadata][beat]}%{+YYYY.MM.dd}"

Any Idea?

*I am running Version 6 Beta on Windows platform.

Thanks
Sharon.

2

Elasticsearch index names can't contain uppercase characters. There should be Logstash log entries about this.