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We are seeing an interesting problem, that we are unable to repeat but have now seen twice during staging.
We are running memcached, with fileSystem cache to persist the data. We are using
This appears to work for most of the times except for 2 occasions, where the same item was returned by the cache for over 12 hours... We looked at the file on disck and in memcached and I checked that the data and the timestamp is for the previous evening.
We have been using fileSystem Cache for many months without issue, this only started to occur when we added the chain Adapter with memcached.
I have tried to repeat it and written scripts to test the cache and also been through the cachedAdspter and memcachedAdapter code looking for clues.
Any help or suggestions gratefully received.