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我正在使用基于官方 ElasticSearch 客户端的mongoosastic 。Mongoosastic 是一个插件，它允许我将 ElasticSearch 与 MongoDB 一起使用。我已经完成了基本查询，例如

NodesModel.search({
    "query_string": {
        "query": "developed"
    }
}, function(err, results) {
    console.log(err, JSON.stringify(results));
});

他们工作正常。但是现在我正在尝试启用弹性搜索的词干提取功能。我使用了官方 ES 文档中的词干示例，但无法使其与 mongoosastic 一起使用。我试过了

NodesModel.search({
    "query_string": {
        "query": "developed"
    },

    "index": {
        "analysis": {
            "analyzer": {
                "my_analyzer": {
                    "tokenizer": "standard",
                    "filter": ["standard", "lowercase", "my_stemmer"]
                }
            },
            "filter": {
                "my_stemmer": {
                    "type": "stemmer",
                    "name": "light_german"
                }
            }
        }
    }

}, function(err, results) {
    console.log(err, JSON.stringify(results));
});

输出如下：

    { [Error: SearchPhaseExecutionException[Failed to execute phase [query], all sha
rds failed; shardFailures {[zn4Omh8tRy-ml0K0lRpMig][nodess][0]: SearchParseExcep
tion[[nodess][0]: query[_all:developed],from[-1],size[-1]: Parse Failure [Failed
 to parse source [{"query":{"query_string":{"query":"developed"},"index":{"analy
sis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","lo
wercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"light_
german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but go
t START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][1]: SearchParseExcep
tion[[nodess][1]: query[_all:developed],from[-1],size[-1]: Parse Failure [Failed
 to parse source [{"query":{"query_string":{"query":"developed"},"index":{"analy
sis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","lo
wercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"light_
german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but go
t START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][2]: SearchParseExcep
tion[[nodess][2]: query[_all:developed],from[-1],size[-1]: Parse Failure [Failed
 to parse source [{"query":{"query_string":{"query":"developed"},"index":{"analy
sis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","lo
wercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"light_
german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but go
t START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][3]: SearchParseExcep
tion[[nodess][3]: query[_all:developed],from[-1],size[-1]: Parse Failure [Failed
 to parse source [{"query":{"query_string":{"query":"developed"},"index":{"analy
sis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","lo
wercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"light_
german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but go
t START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][4]: SearchParseExcep
tion[[nodess][4]: query[_all:developed],from[-1],size[-1]: Parse Failure [Failed
 to parse source [{"query":{"query_string":{"query":"developed"},"index":{"analy
sis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","lo
wercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"light_
german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but go
t START_OBJECT "index"]; }]]
  message: 'SearchPhaseExecutionException[Failed to execute phase [query], all s
hards failed; shardFailures {[zn4Omh8tRy-ml0K0lRpMig][nodess][0]: SearchParseExc
eption[[nodess][0]: query[_all:developed],from[-1],size[-1]: Parse Failure [Fail
ed to parse source [{"query":{"query_string":{"query":"developed"},"index":{"ana
lysis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","
lowercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"ligh
t_german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but
got START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][1]: SearchParseExc
eption[[nodess][1]: query[_all:developed],from[-1],size[-1]: Parse Failure [Fail
ed to parse source [{"query":{"query_string":{"query":"developed"},"index":{"ana
lysis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","
lowercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"ligh
t_german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but
got START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][2]: SearchParseExc
eption[[nodess][2]: query[_all:developed],from[-1],size[-1]: Parse Failure [Fail
ed to parse source [{"query":{"query_string":{"query":"developed"},"index":{"ana
lysis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","
lowercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"ligh
t_german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but
got START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][3]: SearchParseExc
eption[[nodess][3]: query[_all:developed],from[-1],size[-1]: Parse Failure [Fail
ed to parse source [{"query":{"query_string":{"query":"developed"},"index":{"ana
lysis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","
lowercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"ligh
t_german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but
got START_OBJECT "index"]; }{[zn4Omh8tRy-ml0K0lRpMig][nodess][4]: SearchParseExc
eption[[nodess][4]: query[_all:developed],from[-1],size[-1]: Parse Failure [Fail
ed to parse source [{"query":{"query_string":{"query":"developed"},"index":{"ana
lysis":{"analyzer":{"my_analyzer":{"tokenizer":"standard","filter":["standard","
lowercase","my_stemmer"]}},"filter":{"my_stemmer":{"type":"stemmer","name":"ligh
t_german"}}}}}}]]]; nested: ElasticsearchParseException[Expected field name but
got START_OBJECT "index"]; }]' } undefined

正如我看到的那样，mongoosastic 将第一个参数传递给 ES nodejs 客户端，如下所示：

schema.statics.search = function(query, options, cb){
    if (arguments.length === 2) {
      cb = arguments[1]
      options = {}
    }

    options.hydrateOptions = options.hydrateOptions || defaultHydrateOptions || {};

    if (query === null)
      query = undefined

    var model = this
      , esQuery = {
        body: {
          query: query
        },
        index: options.index || indexName,
        type:  options.type  || typeName
      }
     if (options.highlight) {
        esQuery.body.highlight = options.highlight;
     }
 .......

所以我的问题是我怎样才能让词干工作？

4

1 回答 1

-1

我不建议在另一个插件之上使用插件。

imo elasticsearch也不应该用作数据库，而更像是一个索引服务。

尝试一下原始的低级包，它易于学习并且工作正常。

https://www.npmjs.com/package/elasticsearch

于 2015-04-14T09:23:15.253 回答