hrishikeshrt

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
@author: Hrishikesh Terdalkar

Attendance Checker and Reminder for IITK CSE
Checks both on Kendra and Pingala

You can add the command to cronjob by running the command `crontab -e'
and adding the  following line at the end. (for checking at 5pm, 8pm, 11pm)

cheethoe

# This will use osd.5 as an example
# ceph commands are expected to be run in the rook-toolbox
1) disk fails
2) remove disk from node
3) mark out osd. `ceph osd out osd.5`
4) remove from crush map. `ceph osd crush remove osd.5`
5) delete caps. `ceph auth del osd.5`
6) remove osd. `ceph osd rm osd.5`
7) delete the deployment `kubectl delete deployment -n rook-ceph rook-ceph-osd-id-5`
8) delete osd data dir on node `rm -rf /var/lib/rook/osd5`

missingfaktor

implicit class RichQuery[E, U, C[_]](val underlying: Query[E, U, C]) {
  /**
    * To group by elements by some columns, say "column1" and "column2", and then pick latest in each group, you
    * would normally "ORDER BY column1, column2, created_at DESC" and then "DISTINCT ON (column1, column2)".
    * However Slick currently does not support DISTINCT ON. There are a number of alternatives that can be used to
    * circumvent this limitation. The following function uses "sub-select method" described here:
    * https://robots.thoughtbot.com/ordering-within-a-sql-group-by-clause#sub-select-method
    *
    * This function only deals with arity 2. You will need to define variations of it for different arities. We
    * attempted abstracting over arity but could not get it working.

galexrt

Rook <= 0.7.0 mon hostNetwork: true node IP issue

NOTE If you need assistance with steps 3 through 5, let us know on the Rook Slack and we are happy to help you.

WARNING You should not have to go through this section when having hostNetwork: false (or haven't even set it)! WARNING If you have/had multiple Filesystems created, this guide may not work for you because of a bug in Ceph that causes the mons to crash during the "FS Map" assertion.

1. Scale rook-operator down (e.g. replicas: 0).
2. Edit all rook-ceph-mon ReplicaSets to have command: ['sleep', '3600'] in the mon container, but copy the other args and command values somewhere safe for each mon.
3. Exec into the first mon and run: monmap --print /var/lib/rook/rook-ceph-mon-$MON_ID/monmap.

• Where MON_ID is the ID of the mon you execed into.

lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

wuchengwei

//**dataURL to blob**
function dataURLtoBlob(dataurl) {
    var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
        bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
    while(n--){
        u8arr[n] = bstr.charCodeAt(n);
    }
    return new Blob([u8arr], {type:mime});
}

valfer

<?php

/**
 * @param $http2ch          the curl connection
 * @param $http2_server     the Apple server url
 * @param $apple_cert       the path to the certificate
 * @param $app_bundle_id    the app bundle id
 * @param $message          the payload to send (JSON)
 * @param $token            the token of the device
 * @return mixed            the status code (see https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/APNsProviderAPI.html#//apple_ref/doc/uid/TP40008194-CH101-SW18)

janeczku

#!/bin/sh

cat > /etc/network/interfaces.d/eth0-0.cfg <<EOF
auto eth0:0
allow-hotplug eth0:0
iface eth0:0 inet static
    address 178.32.XXX.XXX
    netmask 255.255.255.255
    broadcast 178.32.XXX.XXX
    post-up /sbin/ip route replace default via $(/sbin/ip route | awk '/default/ { print $3 }') dev eth0 src 178.32.XXX.XXX

fboudra

#!/usr/bin/python

import collections
import json
import os
import signal
import sys
import subprocess
# require pygithub installed
from github import Github

shanechin

while true
do
  echo -n "stats.timers.kamon.localhost.system-metric.cpu.cpu-user.mean_99:$(((RANDOM % 10) + 1))|c" | nc -w 1 -u localhost 8125
done