obengwilliam

Isomap is a nonlinear dimensionality reduction method. 
The algorithm provides a simple method for estimating the intrinsic geometry of a data manifold based on a rough estimate 
of each data point’s neighbours

obengwilliam

import { Link } from 'react-router-dom'
import { Badge, Col, Menu } from 'antd'

const StyledBadge = styled(Badge)`
    .ant-badge-count {
        background-color: #7ECBBF;
        color: white;
        box-shadow: 0 0 0 1px #d9d9d9 inset;
    }
`

obengwilliam

/*
 * This script will download a package (and all of its dependencies) from the 
 * online NPM registry, then create a gzip'd tarball containing that package 
 * and all of its dependencies. This archive can then be copied to a machine
 * without internet access and installed using npm.
 *
 * The idea is pretty simple:
 *  - npm install [package]
 *  - rewrite [package]/package.json to copy dependencies to bundleDependencies
 *  - npm pack [package]

obengwilliam

Badges

License

Version

obengwilliam

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

obengwilliam

Activate MS Office 2019/2016 for macOS - Microsoft_Office_2019_VL_Serializer

Office 2019 above

2019-06-03

Note that Office2019 DO NOT support activate via simple copy/paste plist license file which is the simplest way to activate Office 2016. Fortunately, you can also use the VL Serializer tool, just install Office 2019 and Serializer, then run Serializer to activate.

Ref

obengwilliam

[Unit]
Description=Raddit application
After=network.target

[Service]
Type=simple
User=obeng
WorkingDirectory=/home/obeng/raddit
ExecStart=/bin/bash -lc 'puma'
Restart=always

obengwilliam

auth with microservices

Authorization and Authentication are hard. when you only have to implement them once (as you do within a monolith) instead of over and over again, it makes the developer happy :-), and maybe leads to less implementation failures.

When you have a bunch of microservices, this is something that has to be considered.

Implement it once or in every microservice, or something in between?

obengwilliam

A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

obengwilliam

Here's an example of how to debug Mocha v4 if it hangs.

Ensure you're using a Node.js 8 or newer (or any version with async_hooks support).

If you run your test, you'll notice it hangs:

$ mocha test.js