The Agile Manager

AUGUST 31, 2020

Decades of poor architecture guidelines and lax developer discipline resulted in the commercial-off-the-shelf components of an ERP becoming inseparable from the custom code built around it. Decades of upstream and downstream systems resulted in point-to-point and often database-level integrations to legacy systems.

Architecture 52

Architecture Code Strategy Programming 52

SQL Server According to Bob

JANUARY 26, 2017

My goal is to resolve mysteries about SQL Server I encounter but do this without going straight the source code first. Quick question about a behavior we’re seeing at a customer and in testing. That is to ensure your database is encrypted at the file level. First, let’s explain the mystery in more detail.

Servers 40

Servers Database Azure Cache 40

SQL Server According to Bob

FEBRUARY 10, 2019

This means we are reading database pages from the master, acquiring locks, and making calls to the domain controller (DC/KDC.). The lack of wait_info* events is revealing because if we are waiting for a database read, lock or preemptive, external call for more than 5 seconds an event would have been logged. wait_info*. Network Trace.

Servers 40

Servers Network Database Systems 40

Dynatrace

SEPTEMBER 20, 2019

Both use the same database back-end and app configuration. The new version of the application is deployed in the green environment and tested for functionality and performance. Once the testing results are successful, application traffic is routed from blue to green. Step 5 — xMatters Slackbot pulls the on-call database.

Systems 26

Systems Traffic DevOps Database 26

The Agile Manager

SEPTEMBER 30, 2012

It's easy to assume that we're hiring competent developers who write high quality code, and most buyers don't know what to look for or how to look for technical quality. And there's no reason to accept technical specialization: we don't need to have mobile client developers as well as services developers and database developers.

Mobile 49

Mobile Code Java Software 49

Percona

AUGUST 30, 2023

If a PostgreSQL user wants to change these values, they need to recompile the PostgreSQL from the source code. This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. Database level setting All options discussed so far have a global scope.

Database 106

Database Servers Open Source Tuning 106

Dynatrace

DECEMBER 10, 2020

I recently joined two industry veterans and Dynatrace partners, Syed Husain of Orasi and Paul Bruce of Neotys as panelists to discuss how performance engineering and test strategies have evolved as it pertains to customer experience. Dynatrace news. This blog summarizes our great conversation for the posed questions.

Strategy 178

Strategy Performance Logistics Monitoring 178

CSS Wizardry

NOVEMBER 3, 2020

Any time you run a test with WebPageTest, you’ll get this table of different milestones and metrics. Note the bottom row shows me the Standard Deviation of the tests’ results. The whole point of the exercise that follows is to allow me to move quickly, spotting patterns from afar, and not having to do any slow or meticulous work yet.

Speed 292

Speed Ecommerce Metrics Analytics 292

The Agile Manager

FEBRUARY 28, 2017

Tool 1: Dolly the Sheep Companies that are heavily rule-based - think insurance - eagerly moved their business rules into code. It was easy to move into code; it's just as easy to move it back into human-readable format. A clone of something extinct - our lost business knowledge - runs the risk of suffering severe defects.

Strategy 40

Strategy Java Code Systems 40

Particular Software

SEPTEMBER 11, 2023

Now go rewrite all your code… we’ll wait…are you done yet? the mobile app) can be built using modern, cloud-based technology while still leveraging the tried-and-true code in the various legacy systems. Imagine if any issues arose during testing or ( shudder ) in production, and you had to pinpoint where the problem lay.

Cloud 126

Cloud Systems Azure Airlines 126

O'Reilly

JANUARY 17, 2023

Figuring out what kinds of problems are amenable to automation through code. So it behooves a software developer to spot what portions of human activity can be properly automated away through code, and then build that. Because if companies use code to automate business rules, they use ML/AI to automate decisions.

Tuning 130

Tuning Open Source AWS Software 130

Dynatrace

APRIL 21, 2022

Using high-fidelity metrics, logs, code-level tracing, and a dynamic topology map of your applications, Davis can identify the precise root cause and prioritize its business impact. Too much data requested from a database. Instead, it remains up to human experts to correlate and analyze the data in time-consuming war rooms.

Azure 188

Azure Monitoring Virtualization Metrics 188

The Agile Manager

NOVEMBER 26, 2008

User Interface, middle tier, server side, database, specialists in things like ERP systems) or by component (e.g., Those individually-performed tasks need to be integrated and then tested from end-to-end. End-to-end testing - the best indicator of success - can't take place until integration is complete. The project manager?

Code 40

Code Servers Engineering Programming 40

O'Reilly

OCTOBER 19, 2021

If you peek under the hood of an ML-powered application, these days you will often find a repository of Python code. Let’s start by considering the job of a non-ML software engineer: writing traditional software deals with well-defined, narrowly-scoped inputs, which the engineer can exhaustively and cleanly model in the code.

DevOps 138

DevOps Software Engineering Infrastructure Open Source 138

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. In the same way that we have moved from a few big software releases a year to continuous delivery of many small changes, we need to move from annual disaster recover tests or suffering when things actually break, to continuously tested resilience.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. In the same way that we have moved from a few big software releases a year to continuous delivery of many small changes, we need to move from annual disaster recover tests or suffering when things actually break, to continuously tested resilience.

Latency 53

Latency Engineering Systems Hardware 53

O'Reilly Software

MARCH 7, 2018

In addition to that, software is increasingly dependent on other software to provide its functionality, be it WebServices, HTTP APIs, databases, or even external devices such as sensors. HTTP, TCP, FTP, MQTT, JMS), databases (i.e., But each implementation is doing it differently, which makes interoperability hard.

Transportation 72

Transportation Java Programming Architecture 72

The Netflix TechBlog

MARCH 6, 2019

in Atlas , Netflix’s in-memory dimensional time series database. Rerun a batch of replays We collect replays from actual MezzFS mounts in production, and we rerun large batches of replays for regression and performance tests. MezzFS collects metrics on data throughput, download efficiency, resource usage, etc.

Media 214

Media Storage Processing Cache 214