openresty / openresty/lua-nginx-module
flush_expired and TTL
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Description
As we know ngx.shared.DICT values can have TTL. And there is ngx.shared.DICT.flush_expired method which deletes expired values from the dictionary.
My question is do I need run this method by hand from time to time or expired items is deleted by some automatic timer or something?
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the ngx.shared.DICT TTL and flush_expired documentation and the related implementation entry point. Confirm whether expired entries are removed automatically or require an explicit call, then document the lifecycle clearly; done means the question is answered for users.
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Assessment
- Tech stack
- lua, nginx
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100