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Frank Rosner

My professional interests are cloud and big data technologies, machine learning, and software development. I like to read source code and research papers to understand how stuff works. Pronoun: He

Work

Lead Production Engineer at DataStax

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Visualizing the Apache Cassandra Token Ring with Plotly

Visualizing the Apache Cassandra Token Ring with Plotly

3
Comments
7 min read

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Books That Helped Me Become a Tech Lead

Books That Helped Me Become a Tech Lead

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Comments 32
10 min read
CQL Trace Viewer: Visualizing CQL Traces with Dash

CQL Trace Viewer: Visualizing CQL Traces with Dash

3
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13 min read
Border Gateway Protocol (BGP)

Border Gateway Protocol (BGP)

1
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6 min read
Server Name Indication (SNI)

Server Name Indication (SNI)

14
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7 min read
Hashed Wheel Timers

Hashed Wheel Timers

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Comments 1
5 min read
How We Built a Serverless Backend Using GraalVM, AWS Lambda and Astra DB (Part 2)

How We Built a Serverless Backend Using GraalVM, AWS Lambda and Astra DB (Part 2)

1
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10 min read
Hausmeister: Automating Slack Channel Archiving Using GitHub Actions

Hausmeister: Automating Slack Channel Archiving Using GitHub Actions

3
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8 min read
Using PromQL Subqueries to Calculate Service Level Indicators

Using PromQL Subqueries to Calculate Service Level Indicators

6
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3 min read
How We Built a Serverless Backend Using GraalVM, AWS Lambda and Astra DB (Part 1)

How We Built a Serverless Backend Using GraalVM, AWS Lambda and Astra DB (Part 1)

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Comments 2
8 min read
How to Analyze Prometheus Alertmanager Alerts Using S3, Athena and CloudFormation

How to Analyze Prometheus Alertmanager Alerts Using S3, Athena and CloudFormation

6
Comments
7 min read
Using a Private GitHub Repository as a Helm Chart Repository

Using a Private GitHub Repository as a Helm Chart Repository

40
Comments 3
6 min read
Reclaiming Persistent Volumes in Kubernetes

Reclaiming Persistent Volumes in Kubernetes

8
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8 min read
Automatic Configuration Reloading in Java Applications on Kubernetes

Automatic Configuration Reloading in Java Applications on Kubernetes

15
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6 min read
Managing Cluster Membership with Etcd

Managing Cluster Membership with Etcd

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Comments 1
10 min read
Writing a Simple TCP Server Using Kqueue

Writing a Simple TCP Server Using Kqueue

36
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9 min read
Writing My Own Dynamic Memory Management

Writing My Own Dynamic Memory Management

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8 min read
Writing My Own Shell

Writing My Own Shell

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5 min read
Writing My Own Keyboard Driver

Writing My Own Keyboard Driver

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11 min read
Writing My Own VGA Driver

Writing My Own VGA Driver

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8 min read
Writing My Own Boot Loader

Writing My Own Boot Loader

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Comments 67
15 min read
How to Get Your Next Software Engineering Job

How to Get Your Next Software Engineering Job

15
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13 min read
Implementing and Testing an Angular Feature Flag Directive

Implementing and Testing an Angular Feature Flag Directive

15
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6 min read
Implementing a Consumer-Driven Contract Testing Workflow with Pact Broker and Gitlab CI

Implementing a Consumer-Driven Contract Testing Workflow with Pact Broker and Gitlab CI

7
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10 min read
Publishing Application Metrics to CloudWatch Using Micrometer

Publishing Application Metrics to CloudWatch Using Micrometer

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8 min read
Message Pact - Contract Testing In Event-Driven Applications

Message Pact - Contract Testing In Event-Driven Applications

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7 min read
Consumer-Driven Contract Testing with Pact

Consumer-Driven Contract Testing with Pact

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9 min read
Understanding the AWS Lambda SQS Integration

Understanding the AWS Lambda SQS Integration

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6 min read
Let's Also Apply Run With Kotlin Scope Functions

Let's Also Apply Run With Kotlin Scope Functions

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5 min read
What makes an IT job offering or company appealing to you? (she/her/hers only)

What makes an IT job offering or company appealing to you? (she/her/hers only)

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1 min read
Resilience Design Patterns: Retry, Fallback, Timeout, Circuit Breaker

Resilience Design Patterns: Retry, Fallback, Timeout, Circuit Breaker

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Comments 4
9 min read
Testing Your Database Migrations With Flyway and Testcontainers

Testing Your Database Migrations With Flyway and Testcontainers

26
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5 min read
Docker Demystified

Docker Demystified

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Comments 23
13 min read
Ten Cognitive Biases to Look Out For as a Developer

Ten Cognitive Biases to Look Out For as a Developer

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8 min read
Explain Non-Blocking I/O Like I'm Five

Explain Non-Blocking I/O Like I'm Five

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Comments 1
7 min read
Vert.x Kotlin Coroutines

Vert.x Kotlin Coroutines

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6 min read
Quality Attributes in Software

Quality Attributes in Software

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Comments 3
8 min read
Monitoring AWS Lambda Functions With CloudWatch

Monitoring AWS Lambda Functions With CloudWatch

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Comments 7
9 min read
Window Functions in Stream Analytics

Window Functions in Stream Analytics

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Comments 5
9 min read
Yarnception: Starting Yarn Within Yarn Through Gulp and When It Is Useful

Yarnception: Starting Yarn Within Yarn Through Gulp and When It Is Useful

34
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6 min read
Concurrency and Automatic Conflict Resolution

Concurrency and Automatic Conflict Resolution

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10 min read
1000 Followers - A Blogging Retrospective

1000 Followers - A Blogging Retrospective

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9 min read
Sensor Data Processing on AWS using IoT Core, Kinesis and ElastiCache

Sensor Data Processing on AWS using IoT Core, Kinesis and ElastiCache

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15 min read
Continuous Delivery on AWS With Terraform and Travis CI

Continuous Delivery on AWS With Terraform and Travis CI

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11 min read
Event Handling in AWS using SNS, SQS, and Lambda

Event Handling in AWS using SNS, SQS, and Lambda

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Comments 16
11 min read
Deploying and Benchmarking an AWS RDS MySQL Instance

Deploying and Benchmarking an AWS RDS MySQL Instance

29
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15 min read
Deploying an HTTP API on AWS using Elastic Beanstalk

Deploying an HTTP API on AWS using Elastic Beanstalk

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11 min read
Deploying an HTTP API on AWS using Lambda and API Gateway

Deploying an HTTP API on AWS using Lambda and API Gateway

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11 min read
Memory Efficient Data Structures

Memory Efficient Data Structures

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Comments 3
8 min read
Infrastructure as Code - Managing AWS With Terraform

Infrastructure as Code - Managing AWS With Terraform

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Comments 6
10 min read
Handwritten Digit Recognition Using Convolutional Neural Networks

Handwritten Digit Recognition Using Convolutional Neural Networks

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14 min read
Update Efficient Data Structures

Update Efficient Data Structures

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14 min read
Read Efficient Data Structures

Read Efficient Data Structures

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15 min read
RUM Conjecture - Reasoning About Data Access

RUM Conjecture - Reasoning About Data Access

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7 min read
Hit Me Baby One More Time - What Are Cache Hits and Why Should You Care?

Hit Me Baby One More Time - What Are Cache Hits and Why Should You Care?

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10 min read
Microbenchmarking your Scala Code

Microbenchmarking your Scala Code

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10 min read
Explain Agile Like I'm a Sports Student

Explain Agile Like I'm a Sports Student

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6 min read
Monitoring Data Quality in Data Science Applications

Monitoring Data Quality in Data Science Applications

29
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8 min read
What I Did Not Know About Scala And Its Standard Library

What I Did Not Know About Scala And Its Standard Library

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8 min read
Making The Invalid Impossible - Choosing The Right Data Model

Making The Invalid Impossible - Choosing The Right Data Model

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6 min read
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