spring mvc - How to disable Redis Caching at run time if redis connection failed - Stack Overflow

spring mvc - How to disable Redis Caching at run time if redis connection failed - Stack Overflow

So, I was digging through the core Spring Framework Caching Abstraction source today addressing another question and it seems if a CacheErrorHandler is implemented properly, then perhaps a problematic Redis Connection could still result in the desired behavior, e.g. cache "miss" (triggered with the return of a null value).

See the AbstractCacheInvoker source for more details.

The cache.get(key) should result in an exception due to a faulty Redis Connection and thus Exception handler would be invoked...

catch (RuntimeException e) {      getErrorHandler().handleCacheGetError(e, cache, key);      return null; // If the exception is handled, return a cache miss  }

If the CacheErrorHandler properly handles the Cache "get" error (and does not re-throw the/an Exception), then a null value will be returned indicating a cache "miss".

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