I use logstash to es ，logstash output configuration is as follows but has been an error， Deprecated field [_routing] used, expected [routing] instead，why and how to solve ？
output {
elasticsearch {
hosts => ["elasticsearch:9200"]
index=>"xxxxxx"
document_id => "xxxxxxxx"
routing => "%{serverid}"
}
}
Does it actually fail, or just log a deprecation message? There is an issue for this. Not sure if an upgrade would fix it.