jjromannet

version: "3.9"
services:
  db:
    image: mysql/mysql-server:5.7
    environment:
      MYSQL_DATABASE: 'db'
      MYSQL_ROOT_PASSWORD: 'secret-pw'
      MYSQL_ROOT_HOST: '%'
    ports:
      - '3306:3306'

peterroth

brew install automake libtool wget
wget https://github.com/google/protobuf/releases/download/v2.5.0/protobuf-2.5.0.tar.bz2
tar -xvjf protobuf-2.5.0.tar.bz2
cd protobuf-2.5.0
./autogen.sh
./configure
make; make check
sudo make install

Validate the successful installation:

tanbro

单机多用户 JupyterLab 环境搭建

概述

在这篇短文中，我们记录了如何在使用 [Ubuntu][] 1804 LTS 操作系统的单台服务器上，建立用户隔离的 [JupyterLab][] Web 环境。

目标是：

• 操作系统的用户可以各自不受干扰的使用独立的 [JupyterLab][]
• 各个用户的 [Conda][] 环境可以自动的出现在 [JupyterLab][] 的 Kernel 列表中

mustafaakin

import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.java.tuple.Tuple3;
import org.apache.flink.streaming.api.TimeCharacteristic;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.api.functions.timestamps.AscendingTimestampExtractor;
import org.apache.flink.table.api.Table;
import org.apache.flink.table.api.TableEnvironment;
import org.apache.flink.table.api.java.StreamTableEnvironment;
import org.apache.flink.types.Row;

robcowie

# DELETE A TABLE IN THE HIVE METASTORE
# BE CAREFUL! BACKUP THE DB BEFORE PROCEEDING!

set @table_name = '';

SELECT @tbl_id := TBl_ID FROM TBLS WHERE TBL_NAME = @table_name;

-- Delete partition key vals
DELETE pvk
FROM PARTITION_KEY_VALS pvk

olih

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

kevinkindom

Python Socket 编程详细介绍

Python 提供了两个基本的 socket 模块：

• Socket 它提供了标准的BSD Socket API。
• SocketServer 它提供了服务器重心，可以简化网络服务器的开发。

下面讲解下 Socket模块功能。

Socket 类型

trusche

Prerequisites

• Homebrew
• Python 2.7
• Git

Graphite

Install Cairo

There's an issue with cairo 14.x that results in the axis fonts on the graphs being HUUUUUGE. Downgrading to 12.6 helps:

LeCoupa

#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
# 
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04

Bouke

Previous versions used homebrew to install the various versions. As suggested in the comments, it's better to use pyenv instead. If you are looking for the previous version of this document, see the revision history.

$ brew update
$ brew install pyenv
$ pyenv install 3.5.0
$ pyenv install 3.4.3
$ pyenv install 3.3.6
$ pyenv install 3.2.6
$ pyenv install 2.7.10

$ pyenv install 2.6.9