9.0x版本测试发现elasticsearch搜索在管理员账户下可以正常搜索文件，普通用户无法搜索文件，是什么原因？
配置文件
[INDEX FILES]
enabled = true
external_es_server = true
es_host = xx.xx.xx.xx
es_port = 9200
interval = 10m
highlight = fvh
If true, indexes the contents of office/pdf files while updating search index
Note: If you change this option from “false” to “true”, then you need to clear the search index and update the index again. See the FAQ for details.
index_office_pdf = true