"如何自动更新弹性搜索文档？"

Question

I'm building a backend for a basic crud app. I have a model for a title document with a field "status" which can be either "ingested, expiring and expired". The logic for an expiring document is when the expiry date - current date is less than 30 days. How do i automatically update the document store when a the expiry date has elapsed?

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Answer 1

Assuming you want to automate this process after specific period, I would suggest to create a Cron that runs daily/monthly basis to update ES docs.

You can use upsert scripts to achieve this. Here is documentation -

https://www.elastic.co/guide/en/elasticsearch/guide/current/partial-updates.html

Hope this helps

Answer 2

There is no automatic way in Elasticsearch to do that. While you could create a separate process to change that flag, it might be easier to implement your logic "expiry date - current date is less than 30 days" within your application. Then you don't have a second process, which might fail on its own etc.