DynamoDB – MapReduce Amazon”s Elastic MapReduce (EMR) allows you to quickly and efficiently process big data. EMR runs Apache Hadoop on EC2 instances, but simplifies the process. You utilize Apache to query map reduce job flows through , a query language resembling SQL. Apache Hive serves as a way to optimize queries and your applications. […]
Category Archives: dynamodb
DynamoDB – Error Handling On unsuccessful processing of a request, DynamoDB throws an error. Each error consists of the following components: HTTP status code, exception name, and message. Error management rests on your SDK, which propagates errors, or your own code. Codes and Messages Exceptions fall into different HTTP header status codes. The 4xx and […]
DynamoDB – Table Activity DynamoDB streams enable you to track and respond to table item changes. Employ this functionality to create an application which responds to changes by updating information across sources. Synchronize data for thousands of users of a large, multi-user system. Use it to send notifications to users on updates. Its applications prove […]