Redisson - distributed and scalable Java objects powered by Redis. Advanced Java Redis client
====
[](https://maven-badges.herokuapp.com/maven-central/org.redisson/redisson/)
Use familiar Java data structures with power of [Redis ](http://redis.io ).
Based on high-performance async and lock-free Java Redis client and [Netty 4 ](http://netty.io ) framework.
Redis 2.8+ and JDK 1.6+ compatible.
Read [wiki ](https://github.com/mrniko/redisson/wiki ) for more Redisson usage details.
[Redisson releases history ](https://github.com/mrniko/redisson/blob/master/CHANGELOG.md ).
Licensed under the Apache License 2.0.
Welcome to support chat - [](https://gitter.im/mrniko/redisson?utm_source=badge& utm_medium=badge& utm_campaign=pr-badge& utm_content=badge)
Features
================================
* [AWS ElastiCache ](https://aws.amazon.com/elasticache/ ) servers mode:
1. automatic new master server discovery
2. automatic new slave servers discovery
3. read data using slave servers, write data using master server
* Cluster servers mode:
1. automatic master and slave discovery
2. automatic new master server discovery
3. automatic new slave servers discovery
4. automatic slots change discovery
5. read data using slave servers, write data using master server
* Sentinel servers mode:
1. automatic master and slave servers discovery
2. automatic new master server discovery
3. automatic new slave servers discovery
4. automatic slave servers offline/online discovery
5. automatic sentinel servers discovery
6. read data using slave servers, write data using master server
* Master with Slave servers mode: read data using slave servers, write data using master server
* Single server mode: read and write data using single server
* Lua scripting
* Distributed implementation of `java.util.BitSet`
* Distributed implementation of `java.util.List`
* Distributed implementation of `java.util.Set` with TTL support for each entry
* Distributed implementation of `java.util.SortedSet`
* Distributed implementation of `java.util.Queue`
* Distributed implementation of `java.util.concurrent.BlockingQueue`
* Distributed implementation of `java.util.Deque`
* Distributed implementation of `java.util.concurrent.BlockingDeque`
* Distributed implementation of `java.util.Map` with TTL support for each entry
* Distributed implementation of `java.util.concurrent.ConcurrentMap` with TTL support for each entry
* Distributed implementation of reentrant `java.util.concurrent.locks.Lock` with TTL support
* Distributed implementation of reentrant `java.util.concurrent.locks.ReadWriteLock` with TTL support
* Distributed alternative to the `java.util.concurrent.atomic.AtomicLong`
* Distributed alternative to the `java.util.concurrent.CountDownLatch`
* Distributed alternative to the `java.util.concurrent.Semaphore`
* Distributed publish/subscribe messaging via `org.redisson.core.RTopic`
* Distributed HyperLogLog via `org.redisson.core.RHyperLogLog`
* Asynchronous interface for each object
* Asynchronous connection pool
* Thread-safe implementation
* All commands executes in an atomic way
* [Spring cache ](http://docs.spring.io/spring/docs/current/spring-framework-reference/html/cache.html ) integration
* Supports [Reactive Streams ](http://www.reactive-streams.org )
* Supports [Redis pipelining ](http://redis.io/topics/pipelining ) (command batches)
* Supports Android platform
* Supports auto-reconnect
* Supports failed to send command auto-retry
* Supports OSGi
* Supports many popular codecs ([Jackson JSON](https://github.com/FasterXML/jackson), [CBOR ](http://cbor.io/ ), [MsgPack ](http://msgpack.org/ ), [Kryo ](https://github.com/EsotericSoftware/kryo ), [FST ](https://github.com/RuedigerMoeller/fast-serialization ), [LZ4 ](https://github.com/jpountz/lz4-java ), [Snappy ](https://github.com/xerial/snappy-java ) and JDK Serialization)
* With over 500 unit tests
Projects using Redisson
================================
Setronica: [setronica.com ](http://setronica.com/ )
Monits: [monits.com ](http://monits.com/ )
Brookhaven National Laboratory: [bnl.gov ](http://bnl.gov/ )
Netflix Dyno client: [dyno] (https://github.com/Netflix/dyno)
武林Q传: [nbrpg.com ](http://www.nbrpg.com/ )
Ocous: [ocous.com ](http://www.ocous.com/ )
Invaluable: [invaluable.com ](http://www.invaluable.com/ )
Latest version changelog
=================================
####03-Feb-2016 - version 2.2.7 released
Feature - `readAllKeySet` , `readAllValues` , `readAllEntry` , `readAllKeySetAsync` , `readAllValuesAsync` , `readAllEntryAsync` methods were added to `RMap` object
Improvement - `RKeys.delete` optimization in Cluster mode
Fixed - minimal connections amount initialization
Fixed - `RKeys.deleteByPattern` throws an error in cluster mode
Fixed - `RKeys.deleteAsync` throws error in Cluster mode
Fixed - Redisson failed to start when one of sentinel servers is down
Fixed - Redisson failed to start when there are no slaves in Sentinel mode
Fixed - slave nodes up/down state discovery in Cluster mode
Fixed - slave can stay freezed when it has been just added in Sentinel mode
Fixed - offline slaves handling during Redisson start in Sentinel mode
Fixed - `SELECT` command can't be executed in Sentinel mode
Fixed - `database` setting removed from cluster config
### Maven
Include the following to your dependency list:
< dependency >
< groupId > org.redisson< / groupId >
< artifactId > redisson< / artifactId >
< version > 2.2.7< / version >
< / dependency >
### Gradle
compile 'org.redisson:redisson:2.2.7'
### Supported by
YourKit is kindly supporting this open source project with its full-featured Java Profiler.
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< a href = "http://www.yourkit.com/java/profiler/index.jsp" > YourKit Java Profiler< / a > and
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