rediscallback失败后不会触发

示例代码，我正在使用：

var conf = require('../Config'), redisConf = conf.get('redis'), redis = require('redis'), redisClient = redis.createClient(redisConf.port, redisConf.host), redisSub = redis.createClient(redisConf.port, redisConf.host); redisSub.subscribe('test'); redisSub.on('message', function(channel, data) { console.log('got message on channel: ' + channel + ' with message: ' + data); redisClient.get .... }); redisSub.on('error', function (err) { console.log("redisSub error: " + err); }); redisSub.on('ready', function () { console.log('redisSub subscriber ready'); }); redisSub.on('reconnecting', function () { console.log('redisSub subscriber reconnecting'); }); redisSub.on('end', function () { console.log('redisSub subscriber ended'); }); redisClient.on('error', function (err) { console.log("redisClient error: " + err); }); redisClient.on('ready', function () { console.log('redisClient ready'); }); redisClient.on('reconnecting', function () { console.log('redisClient reconnecting'); }); redisClient.on('end', function () { console.log('redisClient ended'); }); 

我启动nodejs服务器，一切都按预期工作。 当我重新启动redis服务器时，没有任何callback被调用，并且我没有得到任何消息在通道上，并且在我重新启动nodejs服务器之后，redis客户端连接正常，并且一切再次运行。