最新版 Elasticsearch 调优搜索速度 | 软件架构
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内容大纲
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Elastic 软件生态 .................................................................................................................. 3
一、filesystem cache 越大越好 ....................................................................................... 6
二、使用更快的硬件 ............................................................................................................ 7
三、文档模型(document modeling)........................................................................ 7
四、尽可能查询更少的字段 ............................................................................................... 8
五、预索引数据 .................................................................................................................. 12
六、考虑映射标识字段为 keyword 类型 ...................................................................... 17
七、避免脚本 ...................................................................................................................... 17
八、查询舍入的日期 .......................................................................................................... 17
九、Force-merge 只读索引 ............................................................................................ 18
十、预热全局序数(global ordinals) ........................................................................ 18
十一、预热 filesystem cache ......................................................................................... 19
十二、使用索引排序来加速连接 ..................................................................................... 20
十三、使用 preference 来优化高速缓存利用率 .......................................................... 21
十四、副本可能有助于提升吞吐量,但也不一定 ........................................................ 21
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