开启Text的fielddata=true

本文介绍了如何在ElasticSearch中开启Text字段的fielddata,包括通过命令操作和使用es插件进行设置,强调了开启后可能对内存的影响。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

 一 用命令操作

在ElasticSearch中默认fielddata默认是false的,因为开启Text的fielddata后对内存的占用很高

curl -i -H "Content-Type:application/json" -XPUT 127.0.0.1:9200/your_index/_mapping/your_type/?pretty  -d'{"your_type":{"properties":{"your_field_name":{"type":"text","fielddata":true}}}}'

例如

curl -i -H "Content-Type:application/json" -XPUT 127.0.0.1:9200/contacts/_mapping/_doc/?pretty  -d'{"_doc":{"properties":{"creater":{"type":"text","fielddata":true}}}}'

index:contacts

type: _doc

field_name:creater

二 es 插件操作

复合查询

contacts/_doc/_search   GET

contacts/_mapping/_doc/?pretty  POST
{"_doc":{"properties":{"creater":{"type":"text","fielddata":true}}}}

 

 

{ "error" : { "root_cause" : [ { "type" : "illegal_argument_exception", "reason" : "Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [brand] in order to load field data by uninverting the inverted index. Note that this can use significant memory." } ], "type" : "search_phase_execution_exception", "reason" : "all shards failed", "phase" : "query", "grouped" : true, "failed_shards" : [ { "shard" : 0, "index" : "items", "node" : "Maa8sZZlSbCnZCh3xcaNug", "reason" : { "type" : "illegal_argument_exception", "reason" : "Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [brand] in order to load field data by uninverting the inverted index. Note that this can use significant memory." } } ], "caused_by" : { "type" : "illegal_argument_exception", "reason" : "Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [brand] in order to load field data by uninverting the inverted index. Note that this can use significant memory.", "caused_by" : { "type" : "illegal_argument_exception", "reason" : "Text fields are not optimised for operations that require per-document field data like aggregations and sorting, so these operations are disabled by default. Please use a keyword field instead. Alternatively, set fielddata=true on [brand] in order to load field data by uninverting the invert
最新发布
07-18
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值