Sunday, February 25, 2018

Redshift Spectrum


Redshift Spectrum helps to run SQL queries against data in an Amazon S3 data lake as easily as you analyze data stored in Amazon Redshift. It achieves without loading data or resizing the Amazon Redshift cluster based on growing data volumes.

Redshift Spectrum separates compute and storage to meet workload demands for data size, concurrency, and performance.  It scales processing across thousands of nodes, so results are fast, even with massive datasets and complex queries. It is possible to query open file formats that you already use—such as Apache Avro, CSV, Grok, ORC, Apache Parquet, RCFile, RegexSerDe, SequenceFile, TextFile, and TSV—directly in Amazon S3, without any data movement.

Top 3 performance features are:
  1. Short Query Acceleration - speed up execution of queries such as reports, dashboards, and interactive analysis
  2. Results Caching - deliver sub-second response times for queries that are repeated, such as dashboards, visualizations, and those from BI tools
  3. Late Materialization - reduce the amount of data scanned for queries with predicate filters by batching and factoring in the filtering of predicates before fetching data blocks in the next column
AWS Summit video at https://www.youtube.com/watch?v=gchd2sDhSuY

Sunday, February 18, 2018

MongoDB ACID Tackle


MongoDB is making the ACID feature of 4.0 available for testing in public beta.

With the most recent release improving the robustness of BI queries, database writes, schema validation, and Python support, the upcoming 4.0 release will tackle ACID.

Ref: https://www.mongodb.com/transactions?jmp=hero

Friday, February 9, 2018

Amazon Spheres


Amazon’s Spheres, the centerpiece of the retail juggernaut’s $4 billion urban campus, was opened to employees on Jan'18 end.

Amazon has built an architecturally ambitious focal point and symbol of its status as Seattle’s largest employer and one of the most dynamic entities in corporate America.

The flora inside the domes is the work of a team of Amazon horticulturists who were charged with scouring the globe for interesting plants and growing them in a 40,000-square-foot greenhouse in Woodinville.

Four years of growth later, and supplemented by a few older plants acquired from other conservatories, the Spheres feel like a mature, if unusually well-manicured, jungle.  Back to nature, now !!

Wednesday, February 7, 2018

C# Nullable


Technology is fulfilled when it adds business value.

Nullable data type helps to process optional business parameter.  As an example, App shouldn't store '0' in 'manufacturing year' as optional/default integer; it leads to wrong business context.

Current issue of Microsoft magazine illustrates tech concept using C# 

Ref: https://msdn.microsoft.com/en-us/magazine/mt829270

Sunday, February 4, 2018

Angular 3 year support


AngularJS is planning one more significant release, version 1.7, and on July 1, 2018 it will enter a 3 year Long Term Support period.

AngularJS is an extremely stable framework for building web applications, and has been used by millions of developers across the web. Angular is its successor and uses the same philosophies such as declarative templates and dependency injection. 

Many developers are still using AngularJS, and that the migration process to Angular takes time and energy.

All AngularJS applications that work now, will continue to work in the future. All published versions of AngularJS, on npm, bower, CDNs, etc will continue to be available.