Codis连接异常问题处理

报错信息可以看出：由于没有正常的关闭连接，导致连接异常

Caused by: redis.clients.jedis.exceptions.JedisConnectionException: Unexpected end of stream.
　　at redis.clients.util.RedisInputStream.ensureFill(RedisInputStream.java:198)
　　at redis.clients.util.RedisInputStream.readByte(RedisInputStream.java:40)
　　at redis.clients.jedis.Protocol.process(Protocol.java:132)
　　at redis.clients.jedis.Protocol.read(Protocol.java:196)
　　at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:288)
　　at redis.clients.jedis.Connection.getBinaryBulkReply(Connection.java:207)
　　at redis.clients.jedis.Connection.getBulkReply(Connection.java:196)
　　at redis.clients.jedis.Jedis.get(Jedis.java:98)
　　at com.dinpay.bdp.rcp.streaming.WindowHzUtil.setData(WindowHzUtil.java:343)
　　at com.dinpay.bdp.rcp.streaming.WindowHzUtil$12$1.call(WindowHzUtil.java:329)
　　at com.dinpay.bdp.rcp.streaming.WindowHzUtil$12$1.call(WindowHzUtil.java:325)
　　at org.apache.spark.api.java.JavaRDDLike$$anonfun$foreach$1.apply(JavaRDDLike.scala:332)
　　at org.apache.spark.api.java.JavaRDDLike$$anonfun$foreach$1.apply(JavaRDDLike.scala:332)
　　at scala.collection.Iterator$class.foreach(Iterator.scala:727)
　　at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28)
　　at org.apache.spark.rdd.RDD$$anonfun$foreach$1$$anonfun$apply$32.apply(RDD.scala:912)
　　at org.apache.spark.rdd.RDD$$anonfun$foreach$1$$anonfun$apply$32.apply(RDD.scala:912)
　　at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
　　at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
　　at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
　　at org.apache.spark.scheduler.Task.run(Task.scala:89)
　　at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
　　... 3 more

解决方法：采用jedis连接池实现连接，并关闭连接

import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

    private static JedisPool pool = null;

    public static JedisPool getJedisPool(){

        JedisPoolConfig config = new JedisPoolConfig();
        config.setMaxTotal(500);
        config.setMaxIdle(5);
        config.setMaxWaitMillis(1000 * 100);
        config.setTestOnBorrow(true);
        if(pool == null){
            pool = new JedisPool(config, Constant.CODISPROXY, Constant.CODISPORT);
        }
        return pool;
    }

 调用方式：
     private static Jedis jedis = null;
     try {
        jedis = CodisUtil.getJedisPool().getResource();
        jedis.set()....jedis operations
        logger.info(tp._1() + ">>>>>>>>>>>>>" + tp._2());
        logger.info("保存到Codis完成！");
    } finally {
        //回收jedis连接
        if(jedis !=null){
            jedis.close();
        }
    }

更多codis的介绍：
https://github.com/xetorthio/jedis/wiki/Getting-started#using-jedis-in-a-multithreaded-environment