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Upstream

The Big Data Blog

Problems with Small Files on HDFS / S3? Make Them Bigger

Oct 23, 2018 2:08:54 PM / by Eran Levy posted in Amazon Athena, HDFS, S3

More often than not, big data is made up of a lot of small files. Event-based streams from IoT devices, servers or applications will typically arrive in kb-scale JSON files, easily adding up to hundreds of thousands of new files being ingested into your data lake on a daily basis.

Writing small files to an object storage (Amazon S3, Azure Blob, HDFS, etc.) is easy enough; however, trying to query the data in this state using an SQL engine such as Athena or Presto will absolutely kill both your performance and your budget.

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Upsolver Data Security: An Overview

Oct 1, 2018 7:00:00 PM / by Eran Levy

As a company founded by data professionals, data security is of our utmost concern. Upsolver offers a comprehensive set of protections to provide the highest level of security to all sensitive data that is processed or managed using the Upsolver platform. Upsolver uses a cloud-native architecture to keep customers’ data safe in their own AWS account, while offering additional layers of security to prevent any unauthorized access to data through the Upsolver front-end UI.

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4 Examples of Data Lake Architectures on Amazon S3

Sep 27, 2018 8:12:13 PM / by Eran Levy posted in Data Architecture, Data Lake

So you’ve decided it’s time to overhaul your data architecture. What’s next? How do you go about building a data lake that delivers the results you’re expecting.

Well, we’re strong believers in the notion that an example is worth a thousand convoluted explanations. That's why this post is all about real-life examples of companies that have built their data lakes on Amazon S3. Use it for inspiration, reference or as your gateway to learn more about the different components you'll need to become familiar with for your own initiative.

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Apache Kafka with and without a Data Lake

Sep 13, 2018 4:09:13 PM / by Eran Levy posted in Apache Kafka, Data Architecture, Data Lake

Apache Kafka is a cornerstone of many streaming data projects. However, it is only the first step in the potentially long and arduous process of transforming streams into workable, structured data. How should you design the rest of your data architecture to build a scalable, cost effective solution for working with Kafka data? Let’s look at two approaches - reading directly from Kafka vs creating a data lake - and understand when and how you should use each.

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Understanding Data Lakes and Data Lake Platforms

Sep 5, 2018 4:22:46 PM / by Eran Levy posted in Data Lake, Data Lake Platform, Data Architecture

The following article is an abridged version of our new guide to Data Lakes and Data Lake Platforms - get the full version for free here.

If you’re working with data in any capacity, you should be familiar with Data Lakes. Even if you don’t need one today, the rapid growth of data and demand for increasingly versatile analytic use cases (such as reporting, machine learning, and predictive analytics) could result in your organization outgrowing its data infrastructure much sooner than you currently foresee.

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Let's face it: Big Data sucks.

Aug 29, 2018 3:18:51 PM / by Ori Rafael posted in Big Data, Data Lake

If you only read the bombastic headlines, you might be forgiven for thinking that Big Data is the name of a real-life superhero: fighting crime, busting traffic jams and even curing diseases. But when you work with data for a living, you quickly find out that underneath the shiny facade, ‘doing big data’ is also a major pain.

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Escaping ETL Hell: 5 Signs You Need a Big Data Architecture

Aug 22, 2018 7:16:46 PM / by Gal Bello posted in Big Data, Database

Mentioning the words “migration” or “database refactoring” to a typical DBA is unlikely to help you make new friends. Most organizations are extremely averse to changing their data infrastructure, which is often assumed to be a long, arduous and expensive process. Well, It doesn’t have to be this way, since with the right tools you can build a scalable big data infrastructure on AWS in just a week or two; still, change is always scary.

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Spark Streaming VS Upsolver on Twitter Data

Oct 1, 2017 6:15:00 PM / by Ori Rafael

In this post we will provide a step-by-step implementation of an application that auto-completes Twitter hashtags, based on the most popular hashtags seen in the last 7 days. For example, when a user will write the text ‘trum’ in the auto-complete application, the application will probably suggest Trump related hashtags, since that’s a trending topic these days.

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