caching

[yegor256]

We make too many DynamoDB requests. Let's introduce a simple in-memory caching layer for most intensive requests.

[yegor256]

Let's try this one: https://github.com/SamSaffron/lru_redux

[yegor256]

@0crat in

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I'm not managing yegor256/sixnines GitHub repository. You have to contact me in Slack first. Our policy explains how.

[yegor256]

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[yegor256]

@0crat assign @pdacostaporto

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[pdacostaporto]

@yegor256 which would be the most intensive querys? I suppose they are those in Base.flips and Base.ping. Am I right? Are there any others?

[pdacostaporto]

@yegor256 another question: would you like the cache to be cleared after a TTL or on database updates?

[yegor256]

@pdacostaporto I think that the most important for us are these:

• https://github.com/yegor256/sixnines/blob/0.19.2/objects/base.rb#L42-L52
• https://github.com/yegor256/sixnines/blob/0.19.2/objects/base.rb#L76-L85
• https://github.com/yegor256/sixnines/blob/0.19.2/objects/base.rb#L91-L101
• https://github.com/yegor256/sixnines/blob/0.19.2/objects/endpoint.rb#L88-L102

Would be great to flush them on relevant database updates.

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Job gh:yegor256/sixnines#14 assigned to @pdacostaporto, please go ahead (policy).

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