Kibana中的Coordinate Map地图报索引错误的问题

今天做地图定位展示，展示的是ApacheWeb服务器的访问日志文件中的来源IP。但是中间出现了报错环节，说是索引不能匹配到geo_point类型，实在是不懂这是在说什么，后来在网站找了方法就解决了。主要报错如下：

报错信息：

No Compatible Fields: The "logstash_apachelogs" index pattern does not contain any of the following field types: geo_point”

觉得很是奇怪，再来看看我的配置文件

input {
        redis {
                host => "172.16.0.54"
                port =>
                db =>
                password => ""
                data_type => "list"
                key => "apache_filter_index"
                codec => json {
                        charset => "UTF-8"
                }
                add_field => {"[@metadata][myfulltotal]" => "apacheaccess_log"}
        }
}

filter {
        if [@metadata][myfulltotal] == "apacheaccess_log" {
                mutate {
                        gsub => ["message","\\x","\\\x"]
                }
                if ( 'method":"HEAD' in [message] ) {
                        drop{}
                }
                json {
                        source => "message"
                        add_field => {"[@metadata][direct_ip]" => "%{direct_ip}"}
                        remove_field => "message"
                        remove_field => "prospector"
                        remove_field => "beat"
                        remove_field => "host"
                        remove_field => "input"
                        remove_field => "source"
                        remove_field => "offset"
                        remove_field => "fields"
                        remove_field => "@version"
                }
                date {
                        match => ["timestamp","yyyy-MM-dd HH:mm:ss Z"]
                }
                mutate {
                        split => ["client_ip",","]
                }
                mutate {
                        replace => { "client_ip" => "%{client_ip[0]}"}
                }
                mutate {
                        convert => ["body_bytes_sent","integer"]
                        convert => ["total_bytes_sent","integer"]
                }
                if [client_ip] == "-" {
                        if [@metadata][direct_ip] not in ["%{direct_ip}","-"]{
                                mutate {
                                        replace => { "client_ip" => "%{direct_ip}" }
                                }
                        } else {
                                drop {}
                        }
                }
                geoip {
                        source => "client_ip"
                        target => ["geoip"]
                        add_field => ["[geoip][coordinates]", "%{[geoip][longitude]}"]
                        add_field => ["[geoip][coordinates]", "%{[geoip][latitude]}"]
                }
                mutate {
                        convert => ["[geoip][coordinates]","float"]
                }
                mutate {
                        remove_field => ["direct_ip"]
                        remove_field => ["timestamp"]
                }
        }
}
output {
        if [@metadata][myfulltotal] == "apacheaccess_log" {
                elasticsearch {
                        hosts => ["172.16.0.51:9200"]
                        index => "logstash_apachelogs"
                }
        }
}

看上去都是没有问题的，只要是按照这个格式来写，都没有什么错误。只是在报错信息中看出geo的location类型不是geo_point类型的，那我们通过GET命令查看一下mapping

[root@ELK-chaofeng07 httpd]# curl -XGET http://172.16.0.51:9200/logstash_apachelogs/_mapping/
{"logstash-apachelogs":{"mappings":{"_default_":{"dynamic_templates":,{"string_fields":{"match":"*","m,"@version":{"type":"keyword"},"geoip":{"dynamic":"true","properties":{"ip":{"type":"ip"},"latitude":{"type":"half_float"},"location":{"type":"geo_point"},"longitude":{"type":"half_float"}}}}},"doc":{"dynamic_templates":[{"message_field":{"path_match":"message","match_mapping_type":"string","mapping":{"norms":false,"type":"text"}}},{"string_fields":{"match":"*","match_mapping_type":"string","mapping":{"fields":{"keyword":{"ignore_above":,"type":"keyword"}},"norms":false,"type":"text"}}}],"properties":{"@timestamp":{"type":"date"},"@version":{"type":"keyword"},"body_bytes_sent":{"type":"long"},"client_ip":{"type":"text","norms":false,"fields":{"keyword":{"type":"keyword",},"continent_code":{"type":"text","norms":false,"fields":{"keyword":{"type":"keyword","ignore_above":}}},"coordinates":{"type":"float"},"country_code2":{"type":"text","norms":false,"fields":{"keyword":{"type":"keyword","ignore_above":}}},"country_code3":{"type":"text","norms":false,"fields":{"keyword":{"type":"keyword","ignore_above":}}},"country_name":{"type":"text","norms":false,"fields":{"keyword":{"type":"keyword","ignore_above":}}},"ip":{"type":"ip"},"latitude":{"type":"half_float"},"location":{"type":"float"},"longitude":{"type":"half_float"},"region_code":}}}}}}}

看的出来我们此时的location是float类型的。所以如何将它变成geo_point类型是我们的解决目标方法

我们分析一下原因：

　　索引格式为logstash_apachelogs日志文件由logstash输出到Elasticsearch；在 elasticsearch 中，所有的数据都有一个类型，什么样的类型，就可以在其上做一些对应类型的特殊操作。geo信息中的location字段是经纬度，我们需要使用经纬度来定位地理位置；在 elasticsearch 中，对于经纬度来说，要想使用 elasticsearch 提供的地理位置查询相关的功能，就需要构造一个结构，并且将其类型属性设置为geo_point。
解决方法：

　　Elasticsearch支持给索引预定义设置和mapping，其实ES中已经有一个默认预定义的模板，我们只要使用预定的模板即可。我们要想使用预定义的模板，那么索引名必须匹配 logstash-* 的索引才会应用这个模板，由于我们在logstash中使用的是logstash_*的索引方式，因此并没有匹配默认模板，所以只需要修改一下索引名即可。然后我们就可以看到map不再报这个错误了。

所以说这是个相当不起眼的错误，但是引发了这个大的问题，搞的让人很懵比，所以接下来我们得好好研究一下mapping是什么，