获取集群信息之Redis

Redis获取方式

属性文件

#redis监控配置master.ip=10.2.4.12master.port=6379slave.ip=10.2.4.13,10.2.4.14slave.port=6379maxActive=50maxIdle=5maxWait=-1

监控timer

import java.io.IOException;import java.io.InputStream;import java.util.HashMap;import java.util.Map;import java.util.Properties;import java.util.Timer;import java.util.TimerTask;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;import redis.clients.jedis.JedisPoolConfig;/** * RedisMonitor schedule */public class RedisMonitor {    private static Timer timer = new Timer();    private static String master_ip = "";    private static int master_port = 0;    private static String slave_ip = "";    private static int slave_port = 0;    private static int maxActive = 0;    private static int maxIdle = 0;    private static int maxWait = 0;    private static JedisPool jedisWritePool;    static {        InputStream is = RedisMonitor.class            .getResourceAsStream("/monconfig.properties");        Properties props = new Properties();        try {            props.load(is);            master_ip = props.getProperty("master.ip");            master_port = Integer.parseInt(props.getProperty("master.port"));            slave_ip = props.getProperty("slave.ip");            slave_port = Integer.parseInt(props.getProperty("slave.port"));            maxActive = Integer.parseInt(props.getProperty("maxActive"));            maxIdle = Integer.parseInt(props.getProperty("maxIdle"));            maxWait = Integer.parseInt(props.getProperty("maxWait"));        } catch (Exception e) {            System.out.println("monconfig redisconfig error");        }        if (null == master_ip || "".equals(master_ip) || 0 == master_port            || 0 == slave_port || 0 == maxActive || 0 == maxIdle            || 0 == maxWait || null == slave_ip || "".equals(slave_ip)) {            System.out.println("monconfig redisconfig error");        } else {            checkRedisMaster();            try {                timer.schedule(new TimerTask() {                    @Override                    public void run() {                        System.out.println(start());                    }                }, 5000, 5000);            } catch (Exception e) {            }        }    }    public static void main(String[] args) {     }        public static boolean start() {        //优先检测master 然后再坚持slave        return checkSlave();    }    /**     * 启动写redis服务     */    public static boolean checkRedisMaster() {        JedisPoolConfig config = new JedisPoolConfig();        config.setMaxTotal(maxActive);        config.setMaxIdle(maxIdle);        config.setMaxWaitMillis(maxWait);        config.setTestOnBorrow(false);                try {            if (jedisWritePool == null) {                jedisWritePool = new JedisPool(config,master_ip,master_port);            }            return true;        } catch (Exception e) {            e.printStackTrace();            return false;        }    }            /**     * 获取写Jedis实例     *      */    public static Jedis getWriteJedis() {        try {            if (jedisWritePool != null) {                Jedis resource = jedisWritePool.getResource();                return resource;            }        } catch (Exception e) {            e.printStackTrace();        }        return null;    }            /**     * 查看redis的状态信息     * @return     */    public static String getRedisStatus() {            Jedis jedis = null;            try {                jedis = getWriteJedis() ;                return jedis.info() ;             } catch (Exception e) {                e.printStackTrace();                return null;            } finally {                returnWriteResource(jedis) ;            }    }            /**     * 释放jedis资源     */    public static void returnWriteResource(final Jedis jedis) {        if (jedis != null) {            jedisWritePool.returnResource(jedis);        }    }            public static boolean checkSlave(){        String redisInfo = getRedisStatus() ;        try{        String[] array = redisInfo.split("# ") ;        String replication = array[6];        String[] rArray = replication.split("\n") ;        Map m = new HashMap() ;        for (String item : rArray) {            int index = item.indexOf(":") ;            if (index != -1) {                String[] value = item.split(":") ;                m.put(value[0].trim(), value[1].trim()) ;            }        }        //slave与配置的个数一致则正常 否则 失败        if(Integer.parseInt(String.valueOf(m.get("connected_slaves"))) == slave_ip.split(",").length){            System.out.println("redis_slave_total:"+slave_ip.split(",").length +" connected_slaves:"+String.valueOf(m.get("connected_slaves")));            return true;        }else{            System.out.println("redis_slave_total:"+slave_ip.split(",").length +" connected_slaves:"+String.valueOf(m.get("connected_slaves")));            return false;        }        }catch (Exception e) {            System.out.println("redis master down");            return false;        }    }}