supernova106/tsung

distributed load testing

#Description

• distributed load testing tool
• communicate in the cluster using Consul
• atomic tsung configuration achiveved by using consul-template https://github.com/hashicorp/consul-template

#Setup

• open all port range: 0-65536
• kernel tuning, edit /etc/sysctl.conf

fs.file-max = 9999999
fs.nr_open = 9999999
net.core.netdev_max_backlog = 4096
net.core.rmem_max = 16777216
net.core.somaxconn = 65535
net.core.wmem_max = 16777216
net.ipv4.ip_forward = 0
net.ipv4.ip_local_port_range = 1025 65535
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 30
net.ipv4.tcp_max_syn_backlog = 20480
net.ipv4.tcp_max_tw_buckets = 400000
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_tw_reuse = 1
vm.min_free_kbytes = 65536
vm.overcommit_memory = 1

• sudo sysctl -p

./setup-tsung.sh

• generate a RSA key-pair
• save the private key at /home/ubuntu/.ssh/id_rsa
• ubuntu user should have all permission on .ssh
• ssh <slave_ip> should be ok without prompting anything
• install consul
• bootstrap consul server

./start-consul.sh

• install consul-template
• create a template tsung.tpl
• setup SSH configuration

vim /home/ubuntu/.ssh/config

Host *
   StrictHostKeyChecking no
   UserKnownHostsFile=/dev/null

consul-template -template "tsung.tpl:tsung.xml"

• on tsung slave, modify /etc/hosts

<tsung_master_ip> tsungmaster

• start consul member and ask them join the tsungmaster
• debug consul members

#Usage

• you should be able to run as ubuntu user
• tsung -f tsung.xml -k start
• open your browser at: <tsung_master_host>:8091 to view the report

#Contact

• Binh Nguyen