2018

Data on the Outside vs Data on the Inside

I found this paper as relevant and accurate today as it was in 2005, when it was published. It is fascinating how even 12 years later and with new technologies in vogue, same concepts keep applying.
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Apache Kafka

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2017

Distributed Tracing with OpenTracing - NoSlidesConf 2017

Presented at NoSlidesConf 2017
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Tracing Kafka applications

Tracing is one of the hardest time in integration or microservice development: knowing how a request impact your different components, and if your components have behave as expected. This could be fairly easy if we have monolith where we have one database and with some queries or checking one log file you can validate everything went well. Once you introduce distributed components and asynchronous communication this starts to get more complex and tedious.
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From Messaging to Logs with Apache Kafka - OUGN 2017

Presented at OUGN 2017
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Scaling WebLogic, the Kubernetes way - OUGN 2017

Presented at OUGN 2017
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Rewind Kafka Consumer Offsets

One of the most important features from Apache Kafka is how it manages Multiple Consumers. Each consumer group has a current offset, that determine at what point in a topic this consumer group has consume messages. So, each consumer group can manage its offset independently, by partition. This offers the possibility to rollback in time and reprocess messages from the beginning of a topic and regenerate the current status of the system. But how to do it (programmatically)?
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Scaling Kafka with Docker Containers

In this post I will show how to use Docker containers to create and scale a Kafka cluster, and also how to create, scale and move topics inside the cluster.
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2016

Speed up your Oracle Database provisioning with Docker and Ansible

Warming up before AMIS 25th Conference event where I will be presenting with my friend and colleague Arturo Viveros (@gugalnikov) about Oracle SOA Suite provisioning, I want to share some practices that help us to provide Oracle Database instances between developers and improve our productivity.
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Lightning Quick Provisioning and DevOps for Oracle SOA Suite 12c - AMIS 25

Presented at AMIS25 2016
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Ansible - an agentless provisioning

Ansible is an automation tool that is recognized for be simple and powerful at the same time. From my experience, I can say this is mainly because of its scripting language: YAML, and its agentless architecture.
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2015

Oracle SOA Suite 12c Docker Image

After find some limitations on building SOA Docker image using Dockerfile (as volume access, default size image) I researched on how to improve building process and I found Packer (from the same guy that creates Vagrant).
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Integrate Java EE 7 and Kafka using Avro and RxJava

I decided to implement a naive integration between Java EE applications and RxJava/Kafka/Avro, to publish and subscribe to events. You can go directly to that code, or check my approach:
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Oracle Fusion Middleware Chef Cookbook - New Release!

Yesterday, I released a new version (0.2.0) of my Oracle Fusion Middleware Cookbook hosted on Chef Supermarket
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What is Adaptive Case Management? - OUGN 15

Presented at AMIS25 2016
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Docker image for Oracle SOA Suite 12c

Cool news came from Oracle a couple of weeks ago: Oracle WebLogic Server is now supported on Docker!.
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2014

Running Oracle BPM 12c on AWS using Vagrant and Chef

In this post, I will show how to create an AWS EC2 Instance with an Oracle BPM 12c Quickstart Domain created. And I will use previous post for related tasks.
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Chef Cookbook for Oracle Fusion Middleware 12c

Provisioning tools have change the way we create software environments: How much time we spend installing OS, databases, configuring platforms, applications? Now you can translate this steps into code, getting the software development benefits and challenges into infrastructure: versioning, reuse, continuous improvement.
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Create a NFS instance on AWS using Vagrant and Chef

I was creating AWS EC2 instances to install Oracle Fusion Middleware products, and I found an issue: How to download Oracle’s installers if I want to use installers on several instances? This could consume a lot of network bandwith and I want to make this process repeatable, so I don’t want to wait 1 hour each installation only downloading files.
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Book Review - Applied SOA Patterns on the Oracle Platform

I’ve had the opportunity to present a review of this book Applied SOA Patterns on the Oracle Platform.
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Vagrant and Chef Quickstart

I have some months working with Vagrant and I think it’s owesome! Integration with almost all kind of virtualization platforms: VirtalBox, VMware, Docker, AWS EC2, Hyper-V and so on. Also it’s able to use differente Provisioners: Chef, Puppet, bash, Docker, Ansible. I really like it.
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About

Jorge Esteban Quilcate Otoya Peruvian, husband, software engineer, immigrant in Norway. Starting my journey on distributed systems topic. Starting to contribute to Open-Source projects since 2016 (e.g. Apache Kafka) Working as back-end and integration developer at SYSCO AS (Oslo, Norway). Part of the Middleware team. Mostly working with JVM technologies (Java, Scala). Starting to learn Golang. Current interests: Observability, Distributed Tracing (OpenTracing), Metrics (Prometheus), Chaos engineering, Event Sourcing and CQRS, Distributed Systems (microservices patterns), Distributed data stores (Apache Cassandra) Cluster Scheduling (Nomad, Kubernetes), Stream processing (Kafka Streams, Apache Flink) Concurrency and Actor Systems Service Discovery (Consul, Zookeeper) Blockchain Sidecar Proxies (Envoy and Istio) This site This is Jorge Quilcate’s site since 2014.
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