Result window is too large, from + size must be less than or equal to: [10000] but was [10025

使用elasticsearch做分页查询时，当查询记录超过10000时，会报如下错误：

Result window is too large, from + size must be less than or equal to: [10000] but was [10025].
See the scroll api for a more efficient way to request large data sets. 
This limit can be set by changing the [index.max_result_window] index level parameter.

查阅文档可知，默认只能查询到10000：

index.max_result_window
The maximum value of from + size for searches to this index.Defaults to 10000. Search requests take heap memory and time proportional to from + size and this limits that memory.
See Scroll or Search After for a more efficient alternative to raising this.

解决方法：

修改一下设置，把这个设置到自己想要的极限即可，我这里设置1000000：

PUT policy_document/_settings
{"index":{"max_result_window":1000000}
}

修改成功后返回：

{"acknowledged": true
}

然后再去查询就可以了。