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。

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