Connection pooling

pool-demo.js

//Problem: In node.js, one must pool redis db connections, otherwise they die

//Solution: Use generic-pool
pool = poolModule.Pool({
    name: 'redis',
    create: function (callback) {
        var redisClient = redis.createClient();
        callback(null, redisClient);
    },
    destroy  : function (client) {
        client.quit();
    },
    max: 10,
    min: 0,
    idleTimeoutMillis : 4000,
    log : false
});
//Using the pool
pool.acquire(function (err, client){
    client.hgetall("hash", function (err, data) {
        pool.release(client);
        //do something with data
    });
});

//Problem 2: Hide connection pooling from app code

//Solution - use pool.pooled
var pooledRedis = {
    hgetall: pool.pooled(function (client, hashName, cb) {
        client.hgetall(hashName, cb);
    }),
    lrange: pool.pooled(function (client, key, start, length, cb) {
        client.lrange(key, start, length, cb);
    })
};

//Problem 3: Duplication, ugly
//Solution - some argument slicin'

var methods = ["hgetall", "lrange"];
methods.forEach(function (funcName) {
    pooledRedis[funcName] = pool.pooled(function (client) {
        var args = Array.prototype.slice.call(arguments, 1, arguments.length);
        client[funcName].apply(client, args);
    });
});

I seem to be having this issue too. After about 20 minutes my entire app/server becomes unresponsive. After a slightly variable but usually large amount of time I get [Redis connection to failed - read ETIMEDOUT] and it starts working again.

Anyone have any more information about this?