Elasticsearch 向 /_search 发送请求经常 wait

[ss098]

2 Core 4G RAM CentOS 6

数据量比较大，约有十亿条，但是已经通过 River 导入进去了，经常发生向 /{index}/_search 发送请求经常等待的事情，请问如何定位问题出在哪里？

[czheo]

{index}/_stats 看看

[czheo]

4G RAM 10亿数据，平均每条数据才4个字节，显然不够用

[karloku]

https://www.elastic.co/guide/en/elasticsearch/guide/current/hardware.html

A machine with 64 GB of RAM is the ideal sweet spot, but 32 GB and 16 GB machines are also common. Less than 8 GB tends to be counterproductive (you end up needing many, many small machines), and greater than 64 GB has problems that we will discuss in Heap: Sizing and Swapping.

官方建议小于8G不能上生产.

[ss098]

@czheo
@karloku

感谢指出问题所在，准备升级机器。

[knightdf]

4G....我们直接上的32G RAM的服务器