Installing Redis under Ubuntu environment

1. command-line installation

sudo apt-get updatesudoinstall redis-server

2. Start Redis

$redis-server

3208: C -The +: -:42.264# warning:no Configfilespecified, using the default Config. In order to specify a configfileUse redis-server/path/to/redis.conf3208: M -The +: -:42.266* Increased maximum number of open files to10032(It is originally set to1024x768). _._                                                             _.-``__"'-._                                                   _.-``    `. `_."'-._ Redis3.0.6(00000000/0) -bit.-`` .-```. ```\/    _.,_"'-._                                    (    '      ,       .-`  | `,    ) Running in standalone mode|`-._`-...-` __...-.``-._|'` _.-'| Port:6379| `-._   `._    /     _.-'    | pid:3208`-._    `-._  `-./  _.-'    _.-'|`-._`-._    `-.__.-'    _.-'_.-'| | `-._`-._        _.-'_.-'| http//Redis.io`-._    `-._`-.__.-'_.-'_.-'|`-._`-._    `-.__.-'    _.-'_.-'| | `-._`-._        _.-'_.-'|                                    `-._    `-._`-.__.-'_.-'_.-'`-._    `-.__.-'    _.-'                                                 `-._        _.-'`-.__.-'                                               3208: M -The +: -:42.267# warning:the TCP Backlog setting of511Cannot be enforced because/proc/sys/net/core/somaxconn are set to the lower value of -.3208: M -The +: -:42.267# Server started, Redis version3.0.63208: M -The +: -:42.267# WARNING Overcommit_memory is set to0! Background save may fail under low memory condition. To fix this issue add'vm.overcommit_memory = 1'To/etc/sysctl.conf and ThenReboot or run the command'sysctl Vm.overcommit_memory=1'  forThis is take effect.3208: M -The +: -:42.267# WARNING You has Transparent Huge Pages (THP) Support enabledinchYour kernel. This would create latency and memory usage issues with Redis. To fix this issue run the command'echo never >/sys/kernel/mm/transparent_hugepage/enabled'As root, and add it to your/etc/rc.localinchorder to retain the setting after a reboot. Redis must be restarted after THP is disabled.3208: M -The +: -:42.267* The server is now a ready-to-accept connections on port6379

4. Start the client

$ redis-CLI127.0. 0.1:6379

5. Verify that the installation is successful

127.0. 0.1:6379pingPONG

6.java Connection Test

 Public classRedistest { Public Static voidMain (string[] args) {Jedis Jedis=NewJedis ("localhost"); System.out.println ("Redis Connect Success"); //Add StringJedis.set ("Mykey1", "Hahahaha"); System.out.println ("Add Complete" +jedis.get ("Mykey1")); //Add listString[] STRs = {"Haha", "Heihei", "Heheh"}; Jedis.lpush ("List1", STRs); //Get list Datalist<string> list = Jedis.lrange ("List1", 0, 2);  for(String va:list) {System.out.println ("List List1:" +va);    } showkeys (Jedis); }    /*** Show All keys *@paramJedis*/    Private Static voidShowkeys (Jedis jedis) {Set<String> set = Jedis.keys ("*"); Iterator<String> iter =Set.iterator ();  while(Iter.hasnext ()) {String key=Iter.next (); System.out.println ("Key:" +key); }    }}

Installing Redis under Ubuntu environment