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Database Week at the AWS Loft

java-interview-questions-answers

Here are my notes: https://databaseweekoctober2019sf.splashthat.com Databases on AWS: The Right Tool for the Right Job I’m not taking super deep notes for many of these talks. I’m focusing on the highlights. PostgreSQL came after MySQL. 8 categories of DBs on AWS: RelationalKey valueDocumentIn-memoryGraphSearchTime seriesLedger Search for: AWS Database Services For relational, they have Amazon Aurora. It’s compatible with MySQL and ...

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Load balancing: Round robin may not be the right choice

Based on our experience, we believe Round robin may not be an effective load balancing algorithm, because it doesn’t equally distribute traffic among all nodes. You might wonder how this is possible? Yes, it is possible How Round robin algorithm works? Round robin algorithm sends requests among nodes in the order that requests are received. Here is a simple example. ...

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Top 6 Most Used Redis Libraries

Currently the most popular key-value store in the world, Redis has earned its wide adoption rate by providing high speeds and low latency, packed with a flexible feature-set aimed at app developers.  Redis is an in-memory data structure store, used as a database, cache, and message broker distributed under the BSD license. Redis is used by many leading tech brands ...

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[MEGA DEAL] The Machine Learning & Artificial Intelligence Certification Bundle (98% Off)

Take a 44-Hour Deep Dive Into the Algorithms & Statistical Models That Make Machine Learning & Artificial Intelligence Wor Hey fellow geeks, This week, on our JCG Deals store, we have another extreme offer.We are offering a massive 98% off on The Machine Learning & Artificial Intelligence Certification Bundle. Get it now with only $29, instead of the original price ...

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[Upcoming Webinar] Troubleshooting Kubernetes: The 7 Key Components You Need to Have

In case you haven’t heard, containers are eating the world. This shift is transforming everything we’ve ever known about developing, delivering and maintaining our applications – particularly when it comes to resolving errors. With so many moving pieces, getting to the bottom of critical issues lurking in your Kubernetes-based apps can feel impossible. Traditional methods of troubleshooting – like sifting ...

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Become a Master of Java Streams – Part 4: Database Streams

SQL has always been a declarative language whereas Java for a long time has been imperative. Java streams have changed the game. Code your way through this hands-on-lab article and learn how Java streams can be used to perform declarative queries to an RDBMS database, without writing a single line of SQL code. You will discover, there is a remarkable ...

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The First and Last Rites

Let’s look at another test smell. Consider the following tests: @Test public void connectionWorks() { database = openDatabase(); database.healthCheck(); database.close(); } @Test public void countRows() { database = openDatabase(); assertThat(database.countAll()) .isEqualTo(0); database.close(); } In the above code we’ve written two tests for some fictional database. It looks like both those tests start and end with the same code. On top ...

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Tell us what you want and we will make it so: consumer-driven contract testing for messaging

java-interview-questions-answers

Quite some time ago we have talked about consumer-driven contract testing from the perspective of the REST(ful) web APIs in general and their projection into Java (JAX-RS 2.0 specification) in particular. It would be fair to say that REST still dominates the web API landscape, at least with respect to public APIs, however the shift towards microservices or/and service-based architecture ...

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5 Job Fields that Value Java Coding Skills

In this post, we feature a comprehensive article on 5 Job Fields that Value Java Coding Skills. It’s often said that Java is a dying language because its worldwide usage has been steadily dropping in recent years. However, a decrease in usage does not necessarily equate to a loss in value for Java programmers. There are still quite a few ...

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