Implement LocalCachedMap

[mrniko]

Supports LRU and LFU eviction policy.
Supports time to live and max idle time support.
Supports size limitation. If cache max size reached then elements evicted according eviction policy and/or object TTL.
If element has been added/removed then invalidation message sent to all LocalCachedMap instances and element evicted in all of them.

[doggie1989]

guava cache!

[mrniko]

@doggie1989 I think guava cache is overcomplicated and too heavy as dependency for Redisson

[doggie1989]

@mrniko it is simple,we are using guava cache as local cache for redisson.

[ben-manes]

Supports LRU and LFU eviction policy.

You might want to consider TinyLFU to capture frequency in a efficient, compact manner. Or you might try Redis' experimental approach.

If you also want concurrency than off-the-shelf is probably preferable.

[mrniko]

@ben-manes Thanks for advice. I'm really appreciate it!

[innocentliny]

Is "LocalCachedMap" the "near cache" that mentioned at "Moving from Hazelcast to Redis"?

[jackygurui]

Yes

[mrniko]

@innocentliny there is also LocalCachedMapCache for MapCache object

[johnou]

Unfortunately the Redis hash in LocalCachedMapCache is unbounded which depending on usage may not be suitable. We created a simple bounded hash available here #985