Data Resources

Running MongoDB Aggregations on Secondaries

Shifting aggregation to a secondary, such as with batch operations, can save your primaries for more pressing, time-sensitive matters.

January 1, 2017

by Vaibhaw Pandey

· 10,246 Views · 2 Likes

Triggering Lambda Functions With an AWS IoT Button

It turns out that it's easy to merge serverless architecture with your IoT projects by having AWS IoT Button trigger an AWS Lambda function.

December 31, 2016

by Arun Gupta

· 13,746 Views · 4 Likes

Using In-Memory Database in MuleSoft With Apache Derby

You have a file with two million records and you need to filter the values to find a certain match. How do you query such a database?

December 30, 2016

by Ujjawal Kant

· 11,201 Views · 5 Likes

On Databases, Temporal Data Types, and Trains

Temporal data types—those dealing with time—can be troublesome if not handled correctly. See how they've developed and how to implement them properly.

December 29, 2016

by Anders Karlsson

· 10,916 Views · 4 Likes

Using Apache POI to Convert Excel to an Elasticsearch Compatible JSON

Let's see what happens when you upload data into an Elasticsearch index and learn why Logstash was not the answer.

December 29, 2016

by Bipin Patwardhan

· 8,127 Views · 1 Like

Finding NiFi Errors

Not sure how to find NiFi errors (especially the odd ones)? Learn how to hunt it down so you can move on with your task or project.

December 28, 2016

by Tim Spann

CORE

· 7,523 Views · 2 Likes

Bulk Indexing With ElasticSearch

If your case requires a lot of document indexing, then extensive care should be taken to speed up the process. bulkIndex can help.

December 28, 2016

by Cagatay Gokcel

· 30,956 Views · 9 Likes

Working With Oracle JET UI Web Components

Learn the basics for working with Oracle JET UI web components with help from the JET Cookbook.

December 28, 2016

by Chris Muir

· 26,318 Views · 9 Likes

How to Back Up Your Data Volumes to Docker Hub

Backing up changes that you've made to the container is pretty simple, but backing them up to the data volume is a little more difficult.

December 27, 2016

by Eran Avidan

· 24,848 Views · 4 Likes

Performance Ingredients for NoSQL: Intersect Scans in N1QL

Query processing is one of the most complex and complicated areas in the database realm. Intersect scans leverage multiple indexes for a query and bring subtle performance characteristics.

December 26, 2016

by Prasad Varakur

· 6,468 Views · 4 Likes

Variables in DataWeave

It is possible to define variables in DataWeave header, DataWeave body, and flow variables before the DataWeave component in a Mule flow in DataWeave code.

December 26, 2016

by Swati Deshpande

· 41,793 Views · 5 Likes

Row Store vs. Column Store Databases

For data analysis, look to a column store. To record transactions, a row-based database is probably more helpful. Ideall, thought, you'd have both.

December 26, 2016

by Rick Gobla

· 63,508 Views · 4 Likes

Monitoring OpenStack With the ELK Stack

Elasticsearch, Logstash, and Kibana (ELK) form an open source stack that has become a a leading log analysis platform to monitor, in this case, OpenStack.

December 25, 2016

by Asaf Yigal

· 11,638 Views · 6 Likes

Server Log Analysis: It's More Important Than Google Analytics

This article discusses the significance of analyzing the server logs. The author also demonstrates a server log dashboard created using the open source ELK Stack of Elasticsearch, Logstash, and Kibana.

December 23, 2016

by Samuel Scott

· 15,716 Views · 8 Likes

We Don't Need StringBuilder for Simple Concatenation

Concatenating strings is useful, but expensive. Fortunately, you don't need to use StringBuilder anymore - the compiler can handle it for you.

December 22, 2016

by A N M Bazlur Rahman

CORE

· 195,449 Views · 44 Likes

With this approach, it becomes easy share data between applications at runtime without having a database or a file system shared between them.

December 22, 2016

by Anirban Sen Chowdhary

· 47,667 Views · 5 Likes

Byteman: Byte Code Manipulation Tool for Logging, Testing, and Fault Injection

Using the Byteman tool to log, test and fault inject your code at the ByteCode level in the JVM. With code examples for quick understanding.

December 21, 2016

by Siva Prasad Rao Janapati

· 8,102 Views · 7 Likes

Apache NiFi 1.x Cheatsheet

This quick and easy guide will show you how to make Apache NiFi work for you, including processors, connections, and APIs.

December 20, 2016

by Tim Spann

CORE

· 22,046 Views · 8 Likes

Razor Engine for Parsing Razor Pages Stored as String

How the MVC Razor engine can be used to parse the razor view when the view is stored as text in a database or somewhere else outside an application.

December 19, 2016

by Anjani Singh

· 18,993 Views · 1 Like

Making the Case For and Against Lift-and-Shift Cloud Migration

A common approach to cloud migration is to simply port material to the cloud, which is not always the best decision, considering the complexity of modern apps.

December 17, 2016

by Darren Perucci

· 10,708 Views · 3 Likes

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