elasticsearch:删除文档后如何释放存储大小 [英] elasticsearch: how to free store size after deleting documents

问题描述

在我的弹性搜索服务器上:文件总数:300万，总大小:3.6G然后，我删除了大约 280 万个文档:文件总数:约13万，总大小:3.6G

On my elasticsearch server: total documents: 3 million, total size: 3.6G Then, I delete about 2.8 millions documents: total documents: about 0.13 million, total size: 3.6G

我删除了文件，如何释放文件大小?

I have deleted the documents, how should I free the size of the documents?

推荐答案

删除文档只会将这些文档标记为已删除，因此不会被搜索.要回收磁盘空间，您必须优化索引:

Deleting documents only flags these as deleted, so they would not be searched. To reclaim disk space, you have to optimize the index:

curl -XPOST 'http://localhost:9200/_optimize?only_expunge_deletes=true'

文档:http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/indices-optimize.html

文档已移至:https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-forcemerge.html

从 Elasticsearch 2.1.x 开始，优化 在赞成 forcemerge<中已弃用/代码>.API 相同，只有端点发生了变化.

Starting with Elasticsearch 2.1.x, optimize is deprecated in favor of forcemerge. The API is the same, only the endpoint did change.

curl -XPOST 'http://localhost:9200/_forcemerge?only_expunge_deletes=true'

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