# Elasticsearch 快照功能

**URL:** <https://discuss.elastic.co/t/elasticsearch/139691>\
**Category:** 中文提问与讨论\
**Created:** [July 12, 2018, 7:49am UTC](https://discuss.elastic.co/t/elasticsearch/139691 "2018-07-12T07:49:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wuwenjie\_cn](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wuwenjie_cn/32/32514_2.png) [@wuwenjie\_cn](https://discuss.elastic.co/u/wuwenjie_cn)\
**Post date:** [July 12, 2018, 7:49am UTC](https://discuss.elastic.co/t/elasticsearch/139691/1 "2018-07-12T07:49:23Z")

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elasticsearch 快照功能是否可以指定时间段来。  
比如现有一个索引a，这个索引a里面有2018年1月到现在的日志数据，我只想快照里面5月份的数据，其它时间段不做快照，该如何实现？

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 9, 2018, 7:49am UTC](https://discuss.elastic.co/t/elasticsearch/139691/2 "2018-08-09T07:49:42Z")

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