benwilson512

FROM fedora:22

ENV LANG="en_US.UTF-8" LANGUAGE="en_US:en" LC_ALL="en_US.UTF-8"

RUN dnf groupinstall -y "Development Tools" "Development Libraries" && dnf install -y wget git tar bzip2 && dnf clean all
RUN \
    wget http://www.erlang.org/download/otp_src_18.1.tar.gz && \
    tar -zxf otp_src_18.1.tar.gz && \
    cd otp_src_18.1 && \
    export ERL_TOP=`pwd` && \

shreyaskarnik

• With Docker 1.8.0 shipped new log-driver for GELF via UDP, this means that the logs from Docker Container(s) can be shipped directly to the ELK stack for further analysis.
• This tutorial will illustrate how to use the GELF log-driver with Docker engine.
• Step 1: Setup ELK Stack:
  • docker run -d --name es elasticsearch
  • docker run -d --name logstash --link es:elasticsearch logstash -v /tmp/logstash.conf:/config-dir/logstash.conf logstash logstash -f /config-dir/logstash.conf
  • Note the config for Logstash can be found at this link
  • docker run --link es:elasticsearch -d kibana
• Once the ELK stack is up now let's fire up our nginx container which ships its logs to ELK stack.

• LOGSTASH_ADDRESS=$(docker inspect --format '{{ .NetworkSettings.IPAddress }}' logstash)
• `docker run -d --net=host --log-driver=gelf --log-opt gelf-address=u

jjb

This all applies to Ruby 2.1. In some cases a setting is not available in 2.0, this is noted. There is also a different with 1.9, 1.8, and REE --- these are not noted.

All the relevant code is in https://github.com/ruby/ruby/blob/master/gc.c

RUBY_HEAP_MIN_SLOTS

default: 10000

The number of heap slots to start out with. This should be set high enough so that your app has enough or almost enough memory after loading so that it doesn't have to allocate more memory on the first request (althogh this probably isn't such a big deal for most apps).

(todo: figure out how big a slot is. i think the answer can be infered from this code.)

turboladen

sudo su postgres

psql

update pg_database set datistemplate=false where datname='template1';
drop database Template1;
create database template1 with owner=postgres encoding='UTF-8'
  lc_collate='en_US.utf8' lc_ctype='en_US.utf8' template template0;

update pg_database set datistemplate=true where datname='template1';

nandosola

#!/usr/bin/env jruby
require 'rubygems'
require 'spoon'

APPNAME = 'fileserver'
WORK_PATH = Dir.pwd
EXEC      = "#{ENV['HOME']}/.rbenv/shims/puma"
PID_PATH  = "#{WORK_PATH}/log/#{APPNAME}.pid"
OUT_PATH  = "#{WORK_PATH}/log/#{APPNAME}.out.log"

mystix

VERSION=0.20.6

sudo apt-get update
sudo apt-get install openjdk-6-jdk

wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-$VERSION.deb
sudo dpkg -i elasticsearch-$VERSION.deb

# be sure you add "action.disable_delete_all_indices" : true to the config!!

colinsurprenant

source :rubygems

gem 'raad'
gem 'puma'
gem 'sinatra'

samnang

Install Rails 3.1

gem install rails

generate new app, skipping Test::Unit file generation

rails new my_app -T

Set up Gemfile