##Redisson - distributed and scalable Java data structures on top of Redis server. Advanced Redis client

Use familiar Java data structures with power of Redis.

Based on patched version of lettuce Redis client and Netty 4 framework.
Redis 2.6+ and JDK 1.6+ compatible

Read wiki for more Redisson usage details

Licensed under the Apache License 2.0.

Features

• Cluster servers mode:
  1. automatic master discovery
  2. automatic new master server discovery
  3. automatic slots change discovery
• 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. 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
• Distributed implementation of java.util.List
• Distributed implementation of java.util.Set
• 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.Map
• Distributed implementation of java.util.concurrent.ConcurrentMap
• Distributed implementation of reentrant java.util.concurrent.locks.Lock with TTL support
• Distributed alternative to the java.util.concurrent.atomic.AtomicLong
• Distributed alternative to the java.util.concurrent.CountDownLatch
• Distributed publish/subscribe messaging via org.redisson.core.RTopic
• Distributed HyperLogLog via org.redisson.core.RHyperLogLog
• Thread-safe implementation
• Supports OSGi
• With over 110 unit tests

Projects using Redisson

Setronica: setronica.com
Monits: monits.com
Brookhaven National Laboratory: bnl.gov
Netflix Dyno client: [dyno] (https://github.com/Netflix/dyno)

Recent Releases

####Please Note: trunk is current development branch.

####02-Apr-2015 - version 1.2.1 released Feature - all redis-script commands via 'RScript' object
Feature - implementation of java.util.concurrent.BlockingQueue (thanks to pdeschen)
Feature - buckets load by pattern (thanks to mathieucarbou)
Improvement - IPv6 support
Improvement - isEmpty checks for added collections
Fixed - KryoCodec keys decoding (thanks to mathieucarbou)
Fixed - RMap.addAndGet() data format
Fixed - timeout support in cluster, sentinel and single connections configurations
Fixed - ClassCastException in RedissonCountDownLatch.trySetCount
Fixed - RMap.replace concurrency issue (thanks to AndrewKolpakov)
Fixed - RLock subscription timeout units fixed (thanks to AndrewKolpakov)
Fixed - Re-throw async exceptions (thanks to AndrewKolpakov)

####09-Jan-2015 - version 1.2.0 released Feature - cluster mode support
Fixed - RList iterator race conditions
Fixed - RDeque.addFirst RDeque.addLast methods
Fixed - OSGi support

####16-Dec-2014 - version 1.1.7 released Improvement - RAtomicLong optimization
Fixed - RMap.fastRemove and RMap.getAll methods
Fixed - RTopic listeners re-subscribing in sentinel mode
Fixed - RSet.toArray and RSet.iterator values order
Fixed - keys iteration in RMap.getAll
Fixed - RSet iteration
Fixed - RAtomicLong NPE
Fixed - infinity loop during master/slave connection acquiring
Fixed - RedissonList.addAll result

####18-Nov-2014 - version 1.1.6 released Feature - RBucket.exists and RBucket.existsAsync methods added
Feature - RMap.addAndGet method added
Feature - database index via database and operation timeout via timeout config params added
Improvement - RLock optimization
Breaking api change - Redisson now uses RedissonClient interface
Fixed - NPE in CommandOutput
Fixed - unsubscribing during RTopic.removeListener
Fixed - all object names encoding, no more quotes
Fixed - HashedWheelTimer shutdown
Fixed - RLock race conditions (thanks to jsotuyod and AndrewKolpakov)
Fixed - RCountDownLatch race conditions

####23-Jul-2014 - version 1.1.5 released Feature - operations auto-retry. retryAttempts and retryInterval params added for each connection type
Feature - RMap.filterEntries, RMap.getAll, RMap.filterKeys, RMap.filterValues methods added
Feature - RMap.fastRemove, RMap.fastRemoveAsync, RMap.fastPut & RMap.fastPutAsync methods added
Fixed - async operations timeout handling
Fixed - sorting algorithm used in RSortedSet.

####15-Jul-2014 - version 1.1.4 released Feature - new RLock.lockInterruptibly, RLock.tryLock, RLock.lock methods with TTL support
Fixed - pub/sub connections reattach then slave/master down
Fixed - turn off connection watchdog then slave/master down
Fixed - sentinel master switch
Fixed - slave down connection closing

####13-Jul-2014 - version 1.1.3 released Improvement - RedissonCountDownLatch optimization
Improvement - RedissonLock optimization
Fixed - RedissonLock thread-safety
Fixed - master/slave auth using Sentinel servers
Fixed - slave down handling using Sentinel servers

####03-Jul-2014 - version 1.1.2 released Improvement - RedissonSet.iterator implemented with sscan
Improvement - RedissonSortedSet.iterator optimization
Feature - RSortedSet.removeAsync, RSortedSet.addAsync, RSet.removeAsync, RSet.addAsync methods added
Feature - slave up/down detection in Sentinel servers connection mode
Feature - new-slave automatic discovery in Sentinel servers connection mode

####17-June-2014 - version 1.1.1 released Feature - sentinel servers support
Fixed - connection leak in RTopic
Fixed - setted password not used in single server connection

####07-June-2014 - version 1.1.0 released Feature - master/slave connection management
Feature - simple set/get object support via org.redisson.core.RBucket
Feature - hyperloglog support via org.redisson.core.RHyperLogLog
Feature - new methods getAsync, putAsync and removeAsync added to org.redisson.core.RMap
Feature - new method publishAsync added to org.redisson.core.RTopic
Feature - Kryo codec added (thanks to mathieucarbou)
Breaking api change - org.redisson.Config model changed
Fixed - score calucaltion algorithm used in RSortedSet.
Fixed - RMap.put & RMap.remove result consistency fixed.
Fixed - RTopic.publish now returns the number of clients that received the message
Fixed - reconnection handling (thanks to renzihui)
Improvement - org.redisson.core.RTopic now use lazy apporach for subscribe/unsubscribe

####04-May-2014 - version 1.0.4 released Feature - distributed implementation of java.util.Deque
Feature - some objects implements org.redisson.core.RExpirable
Fixed - JsonJacksonCodec lazy init

####26-Mar-2014 - version 1.0.3 released Fixed - RedissonAtomicLong state format
Fixed - Long serialization in JsonJacksonCodec

####05-Feb-2014 - version 1.0.2 released Feature - distributed implementation of java.util.SortedSet
Fixed - OSGi compability

####17-Jan-2014 - version 1.0.1 released Improvement - forceUnlock, isLocked, isHeldByCurrentThread and getHoldCount methods added to RLock
Feature - connection load balancer to use multiple Redis servers
Feature - published in maven central repo

####11-Jan-2014 - version 1.0.0 released First stable release.

Maven

Include the following to your dependency list:

<dependency>
   <groupId>org.redisson</groupId>
   <artifactId>redisson</artifactId>
   <version>1.2.0</version>
</dependency>