Question

我在弹性搜索中有以下json结构，它存储了@ http://localhost:9200/mongoindex/documents/：

{
"text" : "OTesting1"
"otag" : "otag1"
"pages" : [{
      "text" : "1"
  "name" : "itag1"

    }, {
     "text" : "2"
     "name" : "itag2"
    }
]
}

我已创建嵌套映射，如下所示：启用嵌套搜索和嵌套过滤器：

http://localhost:9200/mongoindex/documents/_mapping [PUT]

{
  "documents": {
    "properties": {
      "pages": {
        "type": "nested"
      }
    }
  }
}

现在执行以下java代码：

Settings settings = ImmutableSettings.settingsBuilder()
                .put("cluster.name", "xyz").build();
        Client client = new TransportClient(settings).addTransportAddress(new InetSocketTransportAddress("localhost", 9300));
        SearchResponse response = client.prepareSearch("mongoindex")
                .setTypes("documents")
                .setQuery(QueryBuilders.nestedQuery("documents", QueryBuilders.boolQuery().must(QueryBuilders.matchQuery("pages.text", "1"))).scoreMode("avg"))
                .execute()
                .actionGet();

但它给了我以下例外：

> Exception in thread "main"
> org.elasticsearch.action.search.SearchPhaseExecutionException: Failed
> to execute phase [query], total failure; shardFailures
> {[kSKaBxjGTMSS352kukrYVw][mongoindex][0]:
> SearchParseException[[mongoindex][0]: from[-1],size[-1]: Parse Failure
> [Failed to parse source
> [{"query":{"nested":{"query":{"bool":{"must":{"match":{"pages.text":{"query":"1","type":"boolean"}}}}},"path":"documents","score_mode":"avg"}}}]]];
> nested: QueryParsingException[[mongoindex] [nested] nested object
> under path [documents] is not of nested type];
> }{[kSKaBxjGTMSS352kukrYVw][mongoindex][4]:
> SearchParseException[[mongoindex][4]: from[-1],size[-1]: Parse Failure
> [Failed to parse source
> [{"query":{"nested":{"query":{"bool":{"must":{"match":{"pages.text":{"query":"1","type":"boolean"}}}}},"path":"documents","score_mode":"avg"}}}]]];
> nested: QueryParsingException[[mongoindex] [nested] nested object
> under path [documents] is not of nested type]; }

Answer 1

您必须在Nested Query中指定嵌套对象的路径，例如"path" : "pages"。我不熟悉Java语法，但等效的REST请求看起来像这样：

{
   "nested" : {
       "path" : "pages",
       "score_mode" : "avg",
       "query" : {
           "bool" : {
               "must" : [
                   {
                       "match" : {"pages.text" : "1"}
                   }
               ]
           }
       }
   }

}

与切向相关，ElasticSearch错误消息的最后一行通常包含您需要调试的信息（而其余信息非常无用和/或重复）。所以这是关键部分：

QueryParsingException [[mongoindex] [嵌套]路径下的嵌套对象 [文件]不是嵌套类型]; }

elasticsearch：嵌套文档映射不起作用

1 个答案: