下面是我用於最新版本的logstash和elasticsearch的問題的一個可重複使用的示例。使用logstash將CSV地理數據轉換爲elasticsearch作爲geo_point類型
我正在使用logstash將地理空間數據從csv輸入到elasticsearch中作爲geo_points。
的CSV如下所示:
$ head simple_base_map.csv
"lon","lat"
-1.7841,50.7408
-1.7841,50.7408
-1.78411,50.7408
-1.78412,50.7408
-1.78413,50.7408
-1.78414,50.7408
-1.78415,50.7408
-1.78416,50.7408
-1.78416,50.7408
我必須創建一個看起來像下面這樣的映射模板:
$ cat simple_base_map_template.json
{
"template": "base_map_template",
"order": 1,
"settings": {
"number_of_shards": 1
},
"mappings": {
"node_points" : {
"properties" : {
"location" : { "type" : "geo_point" }
}
}
}
}
,並有logstash配置文件看起來像以下:
$ cat simple_base_map.conf
input {
stdin {}
}
filter {
csv {
columns => [
"lon", "lat"
]
}
if [lon] == "lon" {
drop { }
} else {
mutate {
remove_field => [ "message", "host", "@timestamp", "@version" ]
}
mutate {
convert => { "lon" => "float" }
convert => { "lat" => "float" }
}
mutate {
rename => {
"lon" => "[location][lon]"
"lat" => "[location][lat]"
}
}
}
}
output {
stdout { codec => dots }
elasticsearch {
index => "base_map_simple"
template => "simple_base_map_template.json"
document_type => "node_points"
}
}
然後我運行以下內容:
$cat simple_base_map.csv | logstash-2.1.3/bin/logstash -f simple_base_map.conf
Settings: Default filter workers: 16
Logstash startup completed
....................................................................................................Logstash shutdown completed
但是看指數base_map_simple時,表明該文件將不會有一個位置:geo_point類型在它...而這將是緯度和經度兩個雙打。
$ curl -XGET 'localhost:9200/base_map_simple?pretty'
{
"base_map_simple" : {
"aliases" : { },
"mappings" : {
"node_points" : {
"properties" : {
"location" : {
"properties" : {
"lat" : {
"type" : "double"
},
"lon" : {
"type" : "double"
}
}
}
}
}
},
"settings" : {
"index" : {
"creation_date" : "1457355015883",
"uuid" : "luWGyfB3ToKTObSrbBbcbw",
"number_of_replicas" : "1",
"number_of_shards" : "5",
"version" : {
"created" : "2020099"
}
}
},
"warmers" : { }
}
}
我將如何更改上述任何文件以確保它作爲geo_point類型進入彈性搜索?
最後,我希望能夠通過命令來進行對geo_points最近鄰居搜索,如以下幾點:
curl -XGET 'localhost:9200/base_map_simple/_search?pretty' -d'
{
"size": 1,
"sort": {
"_geo_distance" : {
"location" : {
"lat" : 50,
"lon" : -1
},
"order" : "asc",
"unit": "m"
}
}
}'
感謝
我得到以下錯誤'''意外的字符('「'(代碼34)):期待逗號分隔對象條目 at [Source:[B @ 41132e21; line:12,column:9] {:class =>「LogStash :: Json :: ParserError」,:level =>:error}'''當運行logstash –
奇怪的是,它對我的工作很好。你確定你複製/粘貼上面的模板(並刪除了「<---改變這個」字符)? – Val
還要注意,你需要首先刪除當前索引以及模板,例如'curl -XDELETE localhost:9200/base_map_simple' +'curl -XDELETE localhost:9200/_template/logstash' – Val