xiaods

# 下载测试包
git clone https://github.com/brownsys/zookeeper-benchmark.git

# build bench tools
mvn -DZooKeeperVersion=3.4.6 package

# run benchmark
java -cp target/lib/*:target/* edu.brown.cs.zkbenchmark.ZooKeeperBenchmark --conf benchmark.conf

xiaods

#!/bin/sh

##############################################
data_paths=/srv/dockerdata/debuild:/build    #
data_name=debdata			     #
data_image=user/debdata		     #
bridge=br0				     #
ipfile=/etc/default/docker_ips		     #
##############################################

xiaods

###RUN SPARK ON 数人云

###单机版

• Mesos运行在host上
• Spark driver 和 executor运行docker上

#####1.搭建Mesos集群环境 详情 ，登录数人云，登录控制台后，通过集群管理创建自己的集群 #####2.运行Spark demo

xiaods

# ZooKeeper

$ sudo docker run --net=host jplock/zookeeper:3.4.6

#Mesos-Master
## It's important to specify --ip=<ip> and --hostname=<ip> parameters
$ sudo docker run --net=host mesosphere/mesos-master:0.21.0-1.0.ubuntu1404 --ip=10.42.0.1 --hostname=10.42.0.1 --zk=zk://10.42.0.1:2181/mesos --work_dir=/opt/ --quorum=1

#Mesosphere-Marathon

xiaods

Fix memory cgroup configuration for lxc-docker on Ubuntu 14.04

Step 1: enable hierarchical memory management

Drop memory-cg.conf into /etc/init. The upstart job will ensure that the memory cgroup is configured with hierarchical stats tracking before systemd-logind and/or docker start creating cgroups.

(Yes, it's mostly a crude hack with an obscure way of syncing with cgroup-lite. That can't be helped, though)

xiaods

# /etc/security/limits.conf
*       soft    nofile  999999
*       hard    nofile  999999
root soft nofile 999999
root hard nofile 999999

===========================================================
# /etc/sysctl.conf
# sysctl for maximum tuning 

xiaods

# https://coreos.com/docs/running-coreos/platforms/openstack/

Step one:

```
$ wget http://alpha.release.core-os.net/amd64-usr/current/coreos_production_openstack_image.img.bz2
$ bunzip2 coreos_production_openstack_image.img.bz2
$ glance image-create --name CoreOS \
  --container-format bare \
  --disk-format qcow2 \

xiaods

mkdir panamax
cd panamax
curl -O http://download.panamax.io/installer/pmx-installer-latest.zip
unzip pmx-installer-latest.zip
sudo su
./coreos install --stable

xiaods

// This will only work in environments that support ES6 Proxies.
// As of right now, that's pretty much only Firefox.

function Refrigerator(foods) {

  this.foods = foods;

  return new Proxy(this, {
    get: function (receiver, name) {
      if (name in receiver) {

xiaods

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')