Redis cluster configuration, Spring consolidated Jedis, cache synchronization

The front desk's product data (images and other slow loading) queries, first querying data from the Redis cache.

Redis is a NoSQL database, Memory Edition database, read Speed 11w/s. itself has a memory-elimination mechanism, is a single-threaded server (time-sharing operating system), thread safety.

Redis installation in Linux (standalone version): make;;

Modify for background start;

View process;

Virtual machine Simulation of Redis cluster construction:

Build steps:

Vim redis.conf,

Copy 7001, modify the other ports in turn;

Log in to the cluster:

To view node information:

The host is used for writing, from the machine as a backup;

The data deposited by the CRC algorithm specifies the hash slot, pointing to the disk space location;

To add a redis stand-alone to a cluster:

The added will be master;

Reallocate storage space:

./redis-trib.rb Reshard 192.168.74.132:7001 to reallocate 7001 of clusters (note)

Add from Node:

Then give 7008 space to allocate;

Redis clusters into the business:

Guide Package

Data stored in a Redis cluster is randomly assigned to one of the redis clusters;

Spring Integration Jedis:

1 <!--Redis Connection Pooling -2     <BeanID= "Poolconfig"class= "Redis.clients.jedis.JedisPoolConfig">3         < Propertyname= "Maxtotal"value= "$"></ Property>4         < Propertyname= "Maxidle"value= " the"></ Property>5     </Bean>6     <!--Create a Cluster object -7     <Beanclass= "Redis.clients.jedis.JedisCluster">8         <Constructor-argname= "Nodes">9             <Set>Ten                 <Beanclass= "Redis.clients.jedis.HostAndPort"> One                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg> A                     <Constructor-argname= "Port"value= "7001"></Constructor-arg> -                 </Bean> -                  the                 <Beanclass= "Redis.clients.jedis.HostAndPort"> -                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg> -                     <Constructor-argname= "Port"value= "7002"></Constructor-arg> -                 </Bean> +                  -                 <Beanclass= "Redis.clients.jedis.HostAndPort"> +                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg> A                     <Constructor-argname= "Port"value= "7003"></Constructor-arg> at                 </Bean> -                  -                 <Beanclass= "Redis.clients.jedis.HostAndPort"> -                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg> -                     <Constructor-argname= "Port"value= "7004"></Constructor-arg> -                 </Bean> in                  -                 <Beanclass= "Redis.clients.jedis.HostAndPort"> to                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg> +                     <Constructor-argname= "Port"value= "7005"></Constructor-arg> -                 </Bean> the                  *                 <Beanclass= "Redis.clients.jedis.HostAndPort"> $                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg>Panax Notoginseng                     <Constructor-argname= "Port"value= "7006"></Constructor-arg> -                 </Bean> the                  +                 <Beanclass= "Redis.clients.jedis.HostAndPort"> A                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg> the                     <Constructor-argname= "Port"value= "7007"></Constructor-arg> +                 </Bean> -                  $                 <Beanclass= "Redis.clients.jedis.HostAndPort"> $                     <Constructor-argname= "Host"value= "192.168.66.66"></Constructor-arg> -                     <Constructor-argname= "Port"value= "7008"></Constructor-arg> -                 </Bean> the             </Set> -         </Constructor-arg>Wuyi         <Constructor-argname= "Poolconfig"ref= "Poolconfig"></Constructor-arg> the     </Bean>

The operation of caching by means of jediscluster;

After getting the data, add the cache:

Before getting the database data, get it from the cache:

1 Try {2String Adjson = Jedisdao.hget (Index_cache, categoryid+ "");3             if(Stringutils.isnotblank (Adjson)) {4list<aditem> adlist = jsonutils.jsontolist (Adjson, AdItem.class);5                 returnadlist;6             }7}Catch(Exception e) {8 e.printstacktrace ();9}

Cache synchronization:

Data add, modify, delete method set Clear cache:

Redis cluster configuration, Spring consolidated Jedis, cache synchronization