Question

我正在使用top_hits聚合来检索文档以及计数。我需要根据我之前的帖子here检索所有文档，为此我认为通过size 0会这样做但它会抛出以下错误。

org.elasticsearch.search.query.QueryPhaseExecutionException: [my-demo][3]: query[ConstantScore(*:*)],from[0],size[10]: Query Failed [Failed to execute main query]
at org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:162)
at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:261)
at org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:206)
at org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:203)
at org.elasticsearch.search.action.SearchServiceTransportAction$23.run(SearchServiceTransportAction.java:517)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.IllegalArgumentException: numHits must be > 0; please use TotalHitCountCollector if you just need the total hit count
at org.apache.lucene.search.TopScoreDocCollector.create(TopScoreDocCollector.java:254)
at org.apache.lucene.search.TopScoreDocCollector.create(TopScoreDocCollector.java:238)
at org.elasticsearch.search.aggregations.metrics.tophits.TopHitsAggregator.collect(TopHitsAggregator.java:108)
at org.elasticsearch.search.aggregations.bucket.BucketsAggregator.collectBucketNoCounts(BucketsAggregator.java:74)
at org.elasticsearch.search.aggregations.bucket.BucketsAggregator.collectExistingBucket(BucketsAggregator.java:63)
at org.elasticsearch.search.aggregations.bucket.BucketsAggregator.collectBucket(BucketsAggregator.java:55)
at org.elasticsearch.search.aggregations.bucket.terms.GlobalOrdinalsStringTermsAggregator$WithHash.collect(GlobalOrdinalsStringTermsAggregator.java:236)
at org.elasticsearch.search.aggregations.AggregatorFactories$1.collect(AggregatorFactories.java:114)
at org.elasticsearch.search.aggregations.BucketCollector$2.collect(BucketCollector.java:81)
at org.elasticsearch.search.aggregations.bucket.BucketsAggregator.collectBucketNoCounts(BucketsAggregator.java:74)

Answer 1

根据elasticseach，size - 每个桶返回的最大匹配命中数的最大数量。默认情况下，返回前三个匹配的匹配。所以，size = 0表示没有文件（我认为）所以尝试发送最大值。 - progrrammer 31分钟前

热门命中聚合响应的格式为

 "top_tags_hits": {
              "hits": {
                 "total": 25365,
                 "max_score": 1,
                 "hits": [
                    {
                       "_index": "stack",
                       "_type": "question",
                       "_id": "602679",
                       "_score": 1,
                       "_source": {
                          "title": "Windows port opening"
                       },
                       "sort": [
                          1370143231177
                       ]
                    }
                 ]
              }

这里点击 - ＆gt;总计给出命中总数，你可以使用搜索api中的分页（来自和大小）来获取文档或使用最大整数值[（2 ^ 31）-1]来获取所有文档。

希望这会有所帮助。

使用top_hits聚合ElasticSearch检索所有文档

1 个答案: