AWS DAX Node.JS问题
[英]AWS DAX Node.JS Issue
问题描述
Followed the Demo at AWS Demo docs . 
关注了AWS Demo docs上的演示。
I went through and followed everything step by step. 我经历并一步步遵循所有内容。 I was able to run their Node.JS files without any errors. 我能够运行他们的Node.JS文件而没有任何错误。 However the results I see show 0 improvement between DAX and NON-DAX. 但是，我看到的结果显示DAX和NON-DAX之间有0的改进。 Furthermore, after some digging looking at my DAX metrics, the DAX metric charts show 0 Item Cache hits and 0 Item Cache miss even after I execute the 03-GetItem.js Node.JS application for many times. 此外，在仔细查看我的DAX指标后，即使我多次执行03-GetItem.js Node.JS应用程序，DAX指标图表仍显示0项缓存命中和0项缓存未命中。 What the heck is going on? 到底他妈发生了什么？ It doesn't seem to be hitting my DAX at all, yet throws no errors. 它似乎根本没有达到我的DAX，但是没有引发任何错误。
I ran aws dax describe-clusters --query "Clusters[*].ClusterDiscoveryEndpoint" and it successfully returned me the correct cluster address and port # that I am using in the node.js demo apps. 我运行aws dax describe-clusters --query "Clusters[*].ClusterDiscoveryEndpoint" ，它成功返回了我在node.js演示应用程序中使用的正确群集地址和端口号。
I also verified that the DAX has the IAM priveleges to access all the dynamo tables read and write. 我还验证了DAX具有IAM特权以访问所有读取和写入的发电机表。 I also verified DAX and the EC2 are in the same VPC I also verified that DAX/DDB and EC2 are in the same region. 我还验证了DAX和EC2在同一VPC中，我还验证了DAX / DDB和EC2在同一区域中。
Not sure what I am doing wrong. 不知道我在做什么错。 Any help is appreciated. 任何帮助表示赞赏。
1 个解决方案
解决方案1
0 2018-03-11 01:13:02
Figured out the issues. 找出问题。 Essentially the DEMO node.js DAX provided by AWS was using the wrong client. 本质上，AWS提供的DEMO node.js DAX使用了错误的客户端。 Needed to make a code change for the demo to use daxClient. 需要更改代码才能使演示使用daxClient。
https://github.com/awsdocs/amazon-dynamodb-developer-guide/issues/3 https://github.com/awsdocs/amazon-dynamodb-developer-guide/issues/3
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