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Active Record Connection Management in Rails 5.1 or lower

This guide is for Rails 5.1 or lower. Starting in 5.2, all these issues have been made irrelevant.

• rails/rails#31173
• rails/rails#31221
• rails/rails#31241
• rails/rails#28742
• rails/rails#29807

tabiodun

FROM ubuntu:14.04

# Install Chromium build dependencies.
RUN echo "deb http://archive.ubuntu.com/ubuntu trusty multiverse" >> /etc/apt/sources.list # && dpkg --add-architecture i386
RUN apt-get update && apt-get install -qy git build-essential clang curl

# Install Chromium's depot_tools.
ENV DEPOT_TOOLS /usr/bin/depot_tools
RUN git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git $DEPOT_TOOLS
ENV PATH $PATH:$DEPOT_TOOLS

tabiodun

FROM selenium/node-base:3.4.0-dysprosium

USER root

ARG CHROME_VERSION="google-chrome-beta"

RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
  && echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list \
  && apt-get update -qqy \
  && apt-get -qqy install \

Arie

`pip install flent matplotlib`
`brew install fping`

Netperf in homebrew is installed without demo mode by default, so we need to edit the recipe slightly, also demo mode fails to build under OS/X, requiring a tiny patch to netlib.c ( http://www.netperf.org/pipermail/netperf-talk/2013-December/001162.html ). The following recipe changes the URL to a prepatched version that I host and changes the configure line to enable demo mode.

`brew edit netperf`

```
class Netperf < Formula
  desc "Benchmarks performance of many different types of networking"