使用 Elasticsearch/Kibana 并尝试搜索嵌套对象中的字段。但是，它似乎不起作用。这是我在模板中使用的映射：
{
"order": 0,
"template": "ss7_signaling*",
"settings": {
"index": {
"mapping.total_fields.limit": 3000,
"number_of_shards": "5",
"refresh_interval": "30s"
},
"mappings": {
"_default_": {
"dynamic_templates": [
{
"string_fields": {
"mapping": {
"fielddata": {
"format": "disabled"
},
"index": "no",
"type": "string"
},
"match_mapping_type": "string",
"match": "*"
}
}
],
"properties": {
"message": {
"index": "not_analyzed",
"type": "string"
},
"Protocol": {
"index": "not_analyzed",
"type": "string"
},
"IMSI": {
"index": "not_analyzed",
"type": "string"
},
"nested": {
"type": "nested",
"properties": {
"name": {
"type": "string", …好的.有这两个代码:
// first example
request(imageUrl).then((data) => {
var wstream = fs.createWriteStream('doodle');
wstream.write(data);
})
// second example
request(imageUrl).pipe(fs.createWriteStream('doodle2'));
我尝试做的是将图像保存到磁盘.第二个例子很好.但我的问题是:两个例子都做同样的任务,但为什么它们会产生不同的结果呢？顺便说一句,这是示例中的请求 - 承诺模块.