mmaassen

input {
  ## WebLogic Server Log
  file {
    type => "weblogic"
    path => [ "/var/log/weblogic/domain/managedserver.log" ]
    codec => multiline {
      pattern => "^####"
      negate => true
      what => previous
    }

Sharpie

# -*- mode: ruby -*-
# vi: set ft=ruby :

# This configuration requires Vagrant 1.5 or newer and two plugins:
#
#   vagrant plugin install vagrant-hosts        ~> 2.1.4
#   vagrant plugin install vagrant-auto_network ~> 1.0.0
#
# After installation, the following steps will spin up a master and agent that
# can communicate with each other:

jimfdavies

#!/usr/bin/env ruby

require 'rubygems'
require 'pp'
require 'fog'
require 'highline/import'

def get_password(prompt="Enter password:")
   ask(prompt) {|q| q.echo = false}
end

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

unnu

require 'java'

# setup executor
java_import 'java.util.concurrent.ThreadPoolExecutor'
java_import 'java.util.concurrent.TimeUnit'
java_import 'java.util.concurrent.LinkedBlockingQueue'
java_import 'java.util.concurrent.FutureTask'
java_import 'java.util.concurrent.Callable'

core_pool_size = 5