#apachedruid articles

NRNikhil Raonikhilrao.blogMay 18, 2025 · 4 min read

Harnessing the IP Address  Data Type in Apache Druid (2025)

Everything you need to ingest, store, and analyze billions of IPv4 & IPv6 addresses at interactive speed. Why a native IP data type? Storing every address as a plain string inflates segment size, hurts bitmap selectivity, and forces costly runtime ...

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PMPeter Marshallpmio.hashnode.devDec 9, 2024 · 11 min read

Modelling and analysing behavioural systems with Apache Druid

In his Druid Summit 2024 keynote, Eric Tschetter emphasized Druid’s potential for behavioral analytics. This article builds on Eric’s keynote, offering insights and strategies for designing analytics that prioritise behaviour. Apache Druid is an esta...

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RRRajni Retheshmiddlewarehq.comNov 5, 2024 · 5 min read

Apache Druid: Effortlessly Shipping Updates While Keeping Metrics in Check

Are you managing a massive e-commerce store with millions of transactions happening every day? You want to track real-time sales, monitor product trends, and even identify suspicious activities—all on the fly. One second, a product goes viral on soci...

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AWAdam Whitterawhitter.hashnode.devSep 7, 2023 · 3 min read

Sandbox for learning Druid + Kafka

Objective today What I want to do in this article is give you the tools you need to get started with Apache Druid + Apache Kafka so you can jump in and start learning how great these two are together. By the end of this article I want you to be in a ...

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PMPeter Marshallpmio.hashnode.devJun 26, 2023 · 13 min read

start-druid - the new startup script for Apache Druid

What seems like a million years ago now, I wrote a blog post on how I’d used four Raspberry Pi machines to spin up and play with the Apache Druid database. This has worked brilliantly for all the learning I’ve had to do with Druid over the years and ...

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PMPeter Marshallpmio.hashnode.devApr 24, 2023 · 13 min read

A capabilities map for Apache Druid®

It's great that developers can freely use Apache Druid. If your solutions architect is interested in experimenting with this new type of database, you can create real-time analytics pipelines using anything from IoT data from bee hives to trading dat...

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PMPeter Marshallpmio.hashnode.devApr 18, 2023 · 6 min read

Getting to know Apache Druid®

I've been working with Druid now for four-and-a-bit years, joining Imply as its first pre-sales engineer in Europe, and now proud to be working with the open-source community full time as Imply's Director of Developer Relations! This workaversary gav...

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PMPeter Marshallpmio.hashnode.devApr 6, 2023 · 9 min read

Notes on roll-up effectiveness in Apache Druid

I thought I’d share some lessons I learned over the last few years about ingestion-time aggregation in Druid, and how cardinality affects it. This is kinda a little process I go through mentally that I thought would be helpful to share! What is roll-...

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PMPeter Marshallpmio.hashnode.devFeb 1, 2023 · 11 min read

Notes from Apache Druid POCs

"It's clear out time," says my ever-patient husband. "Why have you got all this paper hanging around? I need this space to put my brand new PS5 that you bought me." (Yes, the PS5 is so huge, it requires an entire room.) And what did I find amongst th...

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PMPeter Marshallpmio.hashnode.devJan 12, 2023 · 15 min read

Apache Druid®-powered analytics applications

By using Apache Druid to power your applications, you are part of the charge to deliver a new generation of decision support tooling. That makes you a disruptor, delivering user experiences that increase democratic, socialised decision-making, breaki...

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