Principles and solutions of Redis cache penetration, cache breakdown and cache avalanche

1, Preface: In the era of big data, the concurrency of network requests leads to huge database I/O overhead. Therefore, in order to alleviate the pressure of the database, caching technology is essential. Among them, redis is basically one of the server's caching services. Although caching technology is very easy to use, there will be a variet ...

Posted by davidjwest on Fri, 17 Sep 2021 15:29:23 -0700

OkHttp3 source code, detailed cache strategy, worship

//If the current cache does not meet the requirements, close it if (cacheCandidate != null && cacheResponse == null) { closeQuietly(cacheCandidate.body()); // The cache candidate wasn't applicable. Close it. } // If the network cannot be used and there is no qualified cache, a 504 error will be thrown directly if (networkReques ...

Posted by ozman26 on Mon, 06 Sep 2021 14:08:08 -0700