logstash 字段类型转换后 需要刷新

filter {
    grok {
        match => [
             "message" , "s*%{IPORHOST:clientip}s+-s+-s+[%{HTTPDATE:time}]s+"%{WORD:verb}s+(?<api>(S+))?.*s+HTTP/%{NUMBER:httpversion}"s+%{NUMBER:http_status_code}s+%{NUMBER:bytes}s+(%{BASE16FLOAT:request_time})s+%{IPORHOST:remoteip}",
              "message" ,"s*%{IPORHOST:clientip}s+-s+-s+[%{HTTPDATE:time}]s+"%{WORD:verb}s+(?<api>(S+))s+HTTP/%{NUMBER:httpversion}"s+%{NUMBER:http_status_code}s+%{NUMBER:bytes}s+(%{BASE16FLOAT:request_time})s+%{IPORHOST:remoteip}",
             "message" ,"s*%{IPORHOST:clientip}s+-s+-s+[%{HTTPDATE:time}]s+"%{WORD:verb}s+(?<api>(S+))s+HTTP/%{NUMBER:httpversion}"s+%{NUMBER:http_status_code}s+-s+(%{BASE16FLOAT:request_time})s+%{IPORHOST:remoteip}"
        ]
    }   
        mutate {
                        convert => [ "request_time", "float"]
                       add_field =>["response_time","%{request_time}"]
                        remove_field =>["request_time"]
                        
                }
   date {
        match => ["time", "dd/MMM/yyyy:HH:mm:ss Z"]
    }
     
}