Node JS Redis 客户端连接重试 [英] Node JS Redis Client Connection Retry

问题描述

目前我使用 https://github.com/mranney/node_redis 作为我的节点redis 客户端.

Currently I'm using https://github.com/mranney/node_redis as my node redis client.

client.retry_delay 默认设置为 250 毫秒.

client.retry_delay is set to 250ms default.

我尝试连接到 redis，一旦连接成功，我手动停止了 redis 服务器以查看 client.retry_delay 是否有效.但我没有看到它起作用.

I tried connecting to redis and once connection was successful, I manually stopped the redis server to see whether client.retry_delay works. But I didn't see it working.

以下日志消息记录在 ready &使用 createClient 创建的 redisClient 上的 end 事件:

The following log messages are logged on ready & end events on redisClients created using createClient:

[2012-03-30 15:13:05.498] [INFO] Development - Node Application is running on port 8090
[2012-03-30 15:13:08.507] [INFO] Development - Connection Successfully Established to  '127.0.0.1' '6379'
[2012-03-30 15:16:33.886] [FATAL] Development - Connection Terminated to  '127.0.0.1' '6379'

当服务器重新上线时，我没有再次看到成功消息[未触发就绪事件].

I didn't see Success message again [ready event was not fired] when the server came back live.

我错过了什么吗?什么时候使用重试常量?是否有解决方法来确定节点发生故障后 Redis 服务器是否已启动?

Am I missing something? When will be the retry constant used? Is there a work around to find whether a redis server has come up after a failure from node?

推荐答案

我无法重现.你可以试试这个代码，停止你的redis服务器，并检查日志输出吗?

I can't reproduce this. Could you try this code, stop your redis server, and check the log output?

var client = require('redis').createClient();

client.on('connect'     , log('connect'));
client.on('ready'       , log('ready'));
client.on('reconnecting', log('reconnecting'));
client.on('error'       , log('error'));
client.on('end'         , log('end'));

function log(type) {
    return function() {
        console.log(type, arguments);
    }
}

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