johnspurlock-skymethod

Unofficial R2 notes

Cost

https://developers.cloudflare.com/r2/platform/pricing/

up to 10,000,000 read operations + $0.36 per 1,000,000 operations
  $3.60 free
up to 1,000,000 write operations + $4.50 per 1,000,000 operations

umonaca

锁表原因？

我想了一下最可能造成此次锁表的原因。你是程序在线的时候执行的knex-migrate up吗？那样这次是有可能锁死。 如果你cherry-pick了 935681b14f4f41a6af27977d5cc1cae6c2f5817a 这个是为了解决之前打错字的情况，也为了这次你执行knex-migrate up能正确运行而不至于直接挂在前面的错误文件上。

当你执行knex-migrate的时候，它会读取knex_migrations表，对比没有执行过的migration文件，然后执行并把完成的migration记录文件名到这个表里面。

也就是说本次你应该是看到执行了两个migration：
20210223200240_drop_not_null_constraints.js
20210304101412_fix_view_userMetatdata.js

niw

How to run Windows 10 on ARM or Ubuntu for ARM64 in QEMU on Apple Silicon Mac

Here is easy steps to try Windows 10 on ARM or Ubuntu for ARM64 on your Apple Silicon Mac. Enjoy!

NOTE: that this is current, 10/1/2021 state.

Running Windows 10 on ARM

1. Install Xcode from App Store or install Command Line Tools on your Mac

devrishik

Django provides references to all of the existing indexes in Postgres.
Django managers can be used for managing indexes dynamically, a handle 
can be provided as IndexManager to extend for custom querysets or raw sql queries.


PostGres
--------
Types of indexes: https://www.postgresql.org/docs/9.1/indexes-types.html
BRIN: Block Range Index: good for comparing blocks with relative location data
Btree (default): @> <> =:

groundcat

#<block-baidu>
127.0.0.1 olime.baidu.com
127.0.0.1 dr-ime.baidu.com
127.0.0.1 updateime.baidu.com
127.0.0.1 tips.ime.baidu.com
127.0.0.1 typing.bae.baidu.com
127.0.0.1 pcinput.baidu.com
#</block-baidu>

sochix

const app = require('express')()

const getDurationInMilliseconds  = (start) => {
    const NS_PER_SEC = 1e9
    const NS_TO_MS = 1e6
    const diff = process.hrtime(start)

    return (diff[0] * NS_PER_SEC + diff[1]) / NS_TO_MS
}

kamiaka

<?php

/**
 * Replace Japanese Kana from UTF-8-MAC to UTF-8 for any env.
 * 
 * code is generated
 * 
 * @param string utf-8-mac string
 * @return string utf-8 string
 */

cnDelbert

To install tcptraceroute on Debian/Ubuntu:

$ sudo apt-get install tcptraceroute

To install tcptraceroute on CentOS/REHL, first set up RepoForge on your system, and then:

$ sudo yum install tcptraceroute