# 如何确定es集群需要增加节点了

**URL:** <https://discuss.elastic.co/t/es/84690>\
**Category:** 中文提问与讨论\
**Created:** [May 5, 2017, 10:16am UTC](https://discuss.elastic.co/t/es/84690 "2017-05-05T10:16:13Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![zhaochl](https://avatars.discourse-cdn.com/v4/letter/z/7ba0ec/32.png) [@zhaochl](https://discuss.elastic.co/u/zhaochl)\
**Post date:** [May 5, 2017, 10:16am UTC](https://discuss.elastic.co/t/es/84690/1 "2017-05-05T10:16:14Z")

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现有集群2个节点，CPU和内存都很高，想增加一个节点，不知道是不是会降低原来2台机器的负载了，  
还有如何知道集群该扩展了，一般的机器节点数与文档总量关系是如何对应的了

多谢

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**Author:** ![GourdErwa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gourderwa/32/17736_2.png) [@GourdErwa](https://discuss.elastic.co/u/GourdErwa)\
**Post date:** [May 5, 2017, 10:35am UTC](https://discuss.elastic.co/t/es/84690/2 "2017-05-05T10:35:41Z")

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你们一天数量多大？实时写入es还是离线？  
索引数据怎么保存？全部在一个索引？  
+Q385105195 一起讨论，我最近也在搭建集群

可以参考这个文档  
[https://www.elastic.co/guide/cn/elasticsearch/guide/current/administration.html](https://www.elastic.co/guide/cn/elasticsearch/guide/current/administration.html)

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<div class="post-metadata">

**Author:** ![zhaochl](https://avatars.discourse-cdn.com/v4/letter/z/7ba0ec/32.png) [@zhaochl](https://discuss.elastic.co/u/zhaochl)\
**Post date:** [May 8, 2017, 2:55am UTC](https://discuss.elastic.co/t/es/84690/3 "2017-05-08T02:55:21Z")

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千万级别，实时写入

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**Author:** ![medcl.net](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/medcl.net/32/4414_2.png) [@medcl.net](https://discuss.elastic.co/u/medcl.net)\
**Post date:** [May 29, 2017, 2:47pm UTC](https://discuss.elastic.co/t/es/84690/4 "2017-05-29T14:47:22Z")

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安装一个X-Pack,通过Monitoring的监控来分析是不是需要扩容。

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [June 26, 2017, 2:47pm UTC](https://discuss.elastic.co/t/es/84690/5 "2017-06-26T14:47:50Z")

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