AWS, BIG DATA, JAVA

DynamoDB Streams captures a time-ordered sequence of item-level modifications in any DynamoDB table and stores this information in a log for up to 24 hours.  

Various Kinesis  Services:  Kinesis Data Streams: Collect streaming data, at scale, for real-time analytics(sub second latency ) , custom processing, choice of processing framework , no limit on number of shards, Each shard - 1 mb/sec write, 2 mb/sec read, 1000 puts/sec Kinesis Data Firehose:  Prepare and load real-time data streams into data stores and analytics services, 60 sec or higher latency, use existing analytics tools on S3, RedShift, ElasticSearch, zero administration , transformation of data, autoscaling to match throughput. Kinesis Agent :  stand-alone Java software application that offers an easy way to collect and send data to Kinesis Data Streams. https://aws.amazon.com/blogs/architecture/serverless-stream-based-processing-for-real-time-insights/

 If anytime you need to replace or backup your bootable hard drive , you can use software ( Carbon Copy Cloner )  from bombich.com and clone it. It will make bootable clone. 

Types of Analytics ( Notes from AWS Course )  Descriptive - What happened ?  hindsight  Diagnostic - Why did it  happen?  hindsight & insight  Predictive  - What will happen ? insight & foresight  Prescriptive - What should I do ? foresight  Cognitive & AI  - What are recommended actions ? foresight & hypothesis input  Popular BI Tools:  https://www.cio.com/article/3284415/10-bi-tools-for-data-visualization.html