为什么在 Kibana 4 中，它在数据可视化页面的字段部分显示 "You must choose and item from the list"？

Question

我有一个 elasticsearch 索引，我用它来索引一组文档。

这些文件最初是 csv 格式，我正在寻找使用 logstash 解析这些文件。

在 Kibana 4 可视化页面中，（见下图）

在“Current Device Installs”字段中，按应用后，会出现一个弹出窗口 "You must choose an item from the list"。

我的 logstash 配置文件是，

        input {
        file {
                path => "/csv_files_for_logstash/app1lg.csv"
                        type => "core2"
                        start_position => "beginning"
        }   }


    filter {
        csv {
                separator => ","
                        columns=> ["Date","Package Name","App Version Code","Current Device Installs","Daily Device Installs","Daily Device Uninstalls","Daily Device Upgrades","Current User Installs","Total User Installs","Daily User Installs","Daily User Uninstalls"]
        }
        mutate {convert => ["App Version Code", "string"]}
        mutate {convert => ["Current Device Installs", "float"]}
        mutate {convert => ["Daily Device Installs", "float"]}
        mutate {convert => ["Daily Device Uninstalls", "float"]}
        mutate {convert => ["Current User Installs", "float"]}
        mutate {convert => ["Total User Installs", "float"]}
        mutate {convert => ["Daily User Installs", "float"]}
        mutate {convert => ["Daily User Uninstalls", "float"]}
        ruby {
                code => '
                  b = event["App Version Code"]
                  string2=""
                  for counter in (3..(b.size-1))
                         if counter == 4
                                 string2+= "."+ b[counter]
                         elsif counter ==  6
                                string2+= "("+b[counter]
                         elsif counter == 8
                                string2+= b[counter] + ")"
                         else
                                 string2+= b[counter]
                         end

                   end

                   event["App Version Code"] = string2

                  '

        }
}
   output {
        elasticsearch {
                embedded => true
                        action => "index"
                        host => "es"
                        index => "fivetry"
                        workers => 1

        }
        stdout{
                codec => rubydebug {
                }
        }
}

此错误的可能原因是什么？我该如何删除它？

感谢和问候

Answer 1

如果您只需要“当前设备安装”字段的最大计数，您可以单击“拆分行”部分中的 X（交叉）按钮，然后单击“应用”。

在这种情况下，它将输出当前设备安装的最大计数字段。