Prussia Prussia

Installing Kafka on Mac OS X

Install Homebrew

Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

Debian

cd /tmp
# 编译环境准备&安装依赖包
apt-get install --no-install-recommends build-essential autoconf libtool libssl-dev libpcre3-dev asciidoc xmlto git
# 克隆源码
git clone --recursive https://github.com/shadowsocks/shadowsocks-libev.git
# 开始编译

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Delete all containers
```
 $ docker ps -q -a | xargs docker rm
```

-q prints only the container IDs -a prints all containers

Notice that it uses xargs to issue a remove container command for each container ID

Delete all untagged images

	# Copyright 2018 Cloudera, Inc.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,

	1. create tools.policy file:

	grant {
	permission java.security.AllPermission;
	};

	2. run to start jstatd:

	jstatd -J-Djava.security.policy=tools.policy

	for(Footer f : ParquetFileReader.readFooters(conf, fs, false)){
	for(BlockMetaData b : f.getParquetMetadata().getBlocks()){
	rowCount += b.getRowCount();
	}

	#!/bin/sh

	hwclock -s

	$ brew update
	$ brew install hive