Grokking the System Design Interview
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> Write-around cache: This technique is similar to write-through cache, but data...

Nikita Karpukhin

Jun 2, 2022

Write-around cache: This technique is similar to write-through cache, but data is written directly to permanent storage, bypassing the cache

So how does this solve cache invalidation problem?

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Sandeep Kumar3 years ago

I believe Write-around is a general Caching strategy, although they have mentioned under invalidation. One of the cons of this strategy is that, it can result in old data being returned. But the main advantage is- Once the data is cached, it is available for the next ti...

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CQ 3 years ago

My understanding is that in this case, the existing entry in the cache will need to be somehow marked as invalidated. Otherwise, next time when this entry is queried from cache, it will retried the old value from the cache that's not updated