RangeError：超出最大调用堆栈大小 - nodejs，redis

Question

我正在尝试从redis中删除大量的密钥（~20M）并且我收到错误RangeError：由于过多的递归调用而超出了最大调用堆栈大小 。 我尝试在递归调用中使用process.nextTick（）但仍然得到相同的错误。

count = "100";
cursor = "0";
function scanRedis(key, callback){

redisClient.scan(cursor, "MATCH", key, "COUNT", count, function(err, reply){
    if(err){
        throw err;
    }
    cursor = reply[0];
    if(cursor === "0" && reply[1].length === 0){
        return callback(false, true);
    }else if(cursor === "0" && reply[1].length > 0){
        redisClient.del(reply[1], function(deleteErr, deleteSuccess){
            return callback(false, true);
        });
    }else{
        if(reply[1].length > 0){
            delCount += reply[1].length;
            //console.log(reply[1]);
            redisMulti.del(reply[1]);
        }
        redisMulti.exec(function(deleteErr, deleteSuccess){
            process.nextTick(function(){
                scanRedis(key, function(err, reply){ //getting an error here
                    callback(false, true);
                });
            });
        });
    }
});
};

Answer 1

我通过在scanRedis()函数的回调中插入另一个process.nextTick()来解决这个问题，它对我scanRedis() 。

redisMulti.exec(function(deleteErr, deleteSuccess){
  process.nextTick(function(){
    scanRedis(key, function(err, reply){ 
      process.nextTick(function(){
        callback(false, true);
      });
    });
  });
});