easyfmxu

Tools

Located in alphabetical order (not prefer)

ab – slow and single threaded, written in C
apib – most of the features of ApacheBench (ab), also designed as a more modern replacement, written in C
baloo – Expressive end-to-end HTTP API testing made easy, written in Go (golang)
bombardier – Fast crossplatform HTTP benchmarking tool, written in Go (golang)

no upfront installation/agents on remote/slave machines - ssh should be enough
application components should use third-party software, e.g. HDFS, Spark's cluster, deployed separately
configuration templating
environment requires/asserts, i.e. we need a JVM in a given version before doing deployment
deployment process run from Jenkins

Note: I'm currently taking a break from this course to focus on my studies so I can finally graduate

	#!/bin/bash
	# --- Version history ---
	# 0.4: added variable to store file path, and $2 for base file name
	# added variable to store desired reporting interval
	# 0.3: added $1 to send in process ID at run time.
	# 0.2: switched to $SECONDS for the loop. works.
	# 0.1: didn't work well at all.
	# --- Version history ---

	# Usage: cputrack [PID] [filename]

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8" />
	<title>Add React in One Minute</title>
	</head>
	<body>

	<h2>Add React in One Minute</h2>
	<p>This page demonstrates using React with no build tooling.</p>

	class MidpointLruCache:
	def __init__(self, size, oldpercentage):
	self.size = size
	self.oldsize = size * oldpercentage / 100
	self.youngsize = size * (100 - oldpercentage) / 100

	self.youngitems = collections.OrderedDict()
	self.olditems = collections.OrderedDict()

	def __call__(self, func):

	$ ./zkmon.rb
	0 zk_version - OK 3.4.3-1240972, built on 02/06/2012 10:48 GMT
	0 zk_avg_latency count=5 OK 5
	0 zk_max_latency count=265 OK 265
	0 zk_min_latency count=0 OK 0
	0 zk_packets_received count=2158687 OK 2158687
	0 zk_packets_sent count=2319327 OK 2319327
	0 zk_outstanding_requests count=0 OK 0
	0 zk_server_state - OK standalone
	0 zk_znode_count count=10078 OK 10078

	Producer

	Setup
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3

	Single thread, no replication

	bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196

	# HAProxy configuration - haproxy-db.cfg

	##
	## FRONTEND ##
	##

	# Load-balanced IPs for DB writes and reads
	#
	frontend db_write
	bind 172.16.0.50:3306