Elasticsearch 2.3地理形狀類型映射

我在Elasticsearch索引字段與以下映射Elasticsearch 2.3地理形狀類型映射

"cluster_boundary": { 
     "type": "geo_shape", 
     "tree": "quadtree", 
     "precision": "1mm" 
    }

但是當我把這個映射中的elasticsearch指數出現以下錯誤

java.lang.IllegalArgumentException: maxLevels of 36 exceeds limit of 29 
    at org.apache.lucene.spatial.prefix.tree.PackedQuadPrefixTree.<init>(PackedQuadPrefixTree.java:70) 
    at org.elasticsearch.index.mapper.geo.GeoShapeFieldMapper$GeoShapeFieldType.freeze(GeoShapeFieldMapper.java:276) 
    at org.elasticsearch.index.mapper.FieldMapper.<init>(FieldMapper.java:289) 
    at org.elasticsearch.index.mapper.geo.GeoShapeFieldMapper.<init>(GeoShapeFieldMapper.java:428) 
    at org.elasticsearch.index.mapper.geo.GeoShapeFieldMapper$Builder.build(GeoShapeFieldMapper.java:160) 
    at org.elasticsearch.index.mapper.geo.GeoShapeFieldMapper$Builder.build(GeoShapeFieldMapper.java:119) 
    at org.elasticsearch.index.mapper.object.ObjectMapper$Builder.build(ObjectMapper.java:167) 
    at org.elasticsearch.index.mapper.DocumentMapper$Builder.<init>(DocumentMapper.java:88) 
    at org.elasticsearch.index.mapper.MapperBuilders.doc(MapperBuilders.java:44) 
    at org.elasticsearch.index.mapper.DocumentMapperParser.parse(DocumentMapperParser.java:118) 
    at org.elasticsearch.index.mapper.DocumentMapperParser.parse(DocumentMapperParser.java:99) 
    at org.elasticsearch.index.mapper.MapperService.parse(MapperService.java:498) 
    at org.elasticsearch.cluster.metadata.MetaDataMappingService$PutMappingExecutor.applyRequest(MetaDataMappingService.java:257) 
    at org.elasticsearch.cluster.metadata.MetaDataMappingService$PutMappingExecutor.execute(MetaDataMappingService.java:230) 
    at org.elasticsearch.cluster.service.InternalClusterService.runTasksForExecutor(InternalClusterService.java:468) 
    at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:772) 
    at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:231) 
    at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194) 
    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:745)

如果我將quadtree更改爲geohash它的工作原理。並且，根據elasticsearch，quadtree中的最大允許樹級別爲50。

來源

2016-10-28 Anuranjit Maindola

的最高水平可能PackedQuadPrefixTree是29而QuadPrefixTree是50.您可以檢查here和here。

我翻看了ES source code。 quadtree映射到lucene PackedQuadPrefixTree因此您必須將精度值降低到1m，這可以轉化爲26個樹型級別，或者您可以使用最大爲50級的legacyquadtree。

有一兩件事我注意到的是ES拋出out of memory error如果你指定，而不是說允許的最大水平非常高的數字與legacyquadtree水平爲50

PUT test_index/_mapping/test_type 
{ 
    "properties": { 
    "test": { 
     "type": "geo_shape", 
     "tree": "legacyquadtree", 
     "tree_levels": "54354552" 
    } 
    } 
}

理想上面的代碼應該說最高等級是50，但它耗盡堆空間並拋出OOM錯誤。

我也認爲1mm太精確了，即使有leagcyquadtree它也會佔用大量的內存。 More就此。我也在github上打開了一個issue，你可以關注它。

來源

2016-10-31 05:21:27 ChintanShah25

感謝您的回覆。按照elasticsearch的文檔'''quadtree'''最多有50個級別。根據你所說的文件似乎是錯誤的。我會嘗試使用'''legacyquadtree'''。我已經嘗試過'''1m'''的精度，而樹的水平是'''33'''。 –

Elasticsearch 2.3地理形狀類型映射

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