Local Install

Instructions for using Vitess on your machine for testing purposes

This guide covers installing Vitess locally for testing purposes, from pre-compiled binaries. We will launch multiple copies of mysqld, so it is recommended to have greater than 4GB RAM, as well as 20GB of available disk space.

A docker setup is also available, which requires no dependencies on your local host.

Install MySQL and etcd #

Vitess supports the databases listed here. We recommend MySQL 8.0 if your installation method provides that option:

# Ubuntu based
sudo apt install -y mysql-server etcd curl

# Debian
sudo apt install -y default-mysql-server default-mysql-client etcd curl

# Yum based
sudo yum -y localinstall https://dev.mysql.com/get/mysql80-community-release-el8-3.noarch.rpm
sudo yum -y install mysql-community-server etcd curl

On apt-based distributions the services mysqld and etcd will need to be shutdown, since etcd will conflict with the etcd started in the examples, and mysqlctl will start its own copies of mysqld:

# Debian and Ubuntu
sudo service mysql stop
sudo service etcd stop
sudo systemctl disable mysql
sudo systemctl disable etcd

Install Node 16.13.0+ #

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash

Ensure the following is in your bashrc/zshrc or similar:

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"

Finally, install node:

nvm install --lts 16.13.0
nvm use 16.13.0

See the vtadmin README for more details.

Disable AppArmor or SELinux #

AppArmor/SELinux will not allow Vitess to launch MySQL in any data directory by default. You will need to disable it:

AppArmor:

# Debian and Ubuntu
sudo ln -s /etc/apparmor.d/usr.sbin.mysqld /etc/apparmor.d/disable/
sudo apparmor_parser -R /etc/apparmor.d/usr.sbin.mysqld

# The following command should return an empty result:
sudo aa-status | grep mysqld

SELinux:

# CentOS
sudo setenforce 0

Install Vitess #

Download the latest binary release for Vitess on Linux. For example with Vitess 15:

Notes:

  • Release 15.0 has a bug because of which the local example fails when try to run vtadmin web. Issue#11679
  • Please use release 15.0.1 instead.
version=15.0.1
file=vitess-${version}-13ee9c8.tar.gz
wget https://github.com/vitessio/vitess/releases/download/v${version}/${file}
tar -xzf ${file}
cd ${file/.tar.gz/}
sudo mkdir -p /usr/local/vitess
sudo cp -r * /usr/local/vitess/

Make sure to add /usr/local/vitess/bin to the PATH environment variable. You can do this by adding the following to your $HOME/.bashrc file:

export PATH=/usr/local/vitess/bin:${PATH}

You are now ready to start your first cluster! Open a new terminal window to ensure your .bashrc file changes take effect.

Start a Single Keyspace Cluster #

Start by copying the local examples included with Vitess to your preferred location. For our first example we will deploy a single unsharded keyspace. The file 101_initial_cluster.sh is for example 1 phase 01. Lets execute it now:

mkdir -p ~/my-vitess-example/examples/local
cp -r /usr/local/vitess/examples/local ~/my-vitess-example/examples
cp -r /usr/local/vitess/web ~/my-vitess-example
cd ~/my-vitess-example/examples/local
./101_initial_cluster.sh

You should see an output similar to the following:

~/my-vitess-example> ./101_initial_cluster.sh
$ ./101_initial_cluster.sh 
add /vitess/global
add /vitess/zone1
add zone1 CellInfo
Created cell: zone1
etcd start done...
Starting vtctld...
Starting MySQL for tablet zone1-0000000100...
Starting vttablet for zone1-0000000100...
HTTP/1.1 200 OK
Date: Thu, 01 Sep 2022 12:49:50 GMT
Content-Type: text/html; charset=utf-8

Starting MySQL for tablet zone1-0000000101...
Starting vttablet for zone1-0000000101...
HTTP/1.1 200 OK
Date: Thu, 01 Sep 2022 12:49:55 GMT
Content-Type: text/html; charset=utf-8

Starting MySQL for tablet zone1-0000000102...
Starting vttablet for zone1-0000000102...
HTTP/1.1 200 OK
Date: Thu, 01 Sep 2022 12:50:00 GMT
Content-Type: text/html; charset=utf-8

{
  "keyspace": {
    "served_froms": [],
    "keyspace_type": 0,
    "base_keyspace": "",
    "snapshot_time": null,
    "durability_policy": "semi_sync"
  }
}
vtorc is running!
  - UI: http://localhost:16000
  - Logs: /Users/manangupta/vitess/vtdataroot/tmp/vtorc.out
  - PID: 74088

zone1-0000000100 commerce 0 primary localhost:15100 localhost:17100 [] 2022-09-23T05:48:52Z

New VSchema object:
{
  "sharded": false,
  "vindexes": {},
  "tables": {
    "corder": {
      "type": "",
      "column_vindexes": [],
      "auto_increment": null,
      "columns": [],
      "pinned": "",
      "column_list_authoritative": false
    },
    "customer": {
      "type": "",
      "column_vindexes": [],
      "auto_increment": null,
      "columns": [],
      "pinned": "",
      "column_list_authoritative": false
    },
    "product": {
      "type": "",
      "column_vindexes": [],
      "auto_increment": null,
      "columns": [],
      "pinned": "",
      "column_list_authoritative": false
    }
  },
  "require_explicit_routing": false
}
If this is not what you expected, check the input data (as JSON parsing will skip unexpected fields).
Waiting for vtgate to be up...
vtgate is up!
Access vtgate at http://Manans-MacBook-Pro.local:15001/debug/status
vtadmin-api is running!
  - API: http://localhost:14200
  - Logs: /Users/manangupta/vitess/vtdataroot/tmp/vtadmin-api.out
  - PID: 74039


> vtadmin@0.1.0 build
> react-scripts build

Creating an optimized production build...
Browserslist: caniuse-lite is outdated. Please run:
  npx browserslist@latest --update-db
  Why you should do it regularly: https://github.com/browserslist/browserslist#browsers-data-updating
Browserslist: caniuse-lite is outdated. Please run:
  npx browserslist@latest --update-db
  Why you should do it regularly: https://github.com/browserslist/browserslist#browsers-data-updating
Compiled successfully.

File sizes after gzip:

  385.49 kB  build/static/js/main.044e444c.js
  15.4 kB    build/static/css/main.a46ccb6f.css

The project was built assuming it is hosted at /.
You can control this with the homepage field in your package.json.

The build folder is ready to be deployed.
You may serve it with a static server:

  npm install -g serve
  serve -s build

Find out more about deployment here:

  https://cra.link/deployment

vtadmin-web is running!
  - Browser: http://localhost:14201
  - Logs: /Users/manangupta/vitess/vtdataroot/tmp/vtadmin-web.out
  - PID: 74070

You can also verify that the processes have started with pgrep:

~/my-vitess-example> pgrep -fl vitess
14119 etcd
14176 vtctld
14251 mysqld_safe
14720 mysqld
14787 vttablet
14885 mysqld_safe
15352 mysqld
15396 vttablet
15492 mysqld_safe
15959 mysqld
16006 vttablet
16112 vtgate
16788 vtorc

The exact list of processes will vary. For example, you may not see mysqld_safe listed.

If you encounter any errors, such as ports already in use, you can kill the processes and start over:

pkill -9 -f '(vtdataroot|VTDATAROOT|vitess|vtadmin)' # kill Vitess processes
rm -rf vtdataroot

Setup Aliases #

For ease-of-use, Vitess provides aliases for mysql and vtctlclient:

source ./env.sh

Setting up aliases changes mysql to always connect to Vitess for your current session. To revert this, type unalias mysql && unalias vtctlclient or close your session.

Connect to your cluster #

You should now be able to connect to the VTGate server that was started in 101_initial_cluster.sh:

~/my-vitess-example> mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.9-Vitess (Ubuntu)

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show tables;
+-----------------------+
| Tables_in_vt_commerce |
+-----------------------+
| corder                |
| customer              |
| product               |
+-----------------------+
3 rows in set (0.00 sec)

You can also browse to the vtctld console using the following URL:

http://localhost:15000

VTOrc is also setup as part of the initialization. You can look at its user-interface at:

http://localhost:16000

Summary #

In this example, we deployed a single unsharded keyspace named commerce. Unsharded keyspaces have a single shard named 0. The following schema reflects a common ecommerce scenario that was created by the script:

create table product (
  sku varbinary(128),
  description varbinary(128),
  price bigint,
  primary key(sku)
);
create table customer (
  customer_id bigint not null auto_increment,
  email varbinary(128),
  primary key(customer_id)
);
create table corder (
  order_id bigint not null auto_increment,
  customer_id bigint,
  sku varbinary(128),
  price bigint,
  primary key(order_id)
);

The schema has been simplified to include only those fields that are significant to the example:

  • The product table contains the product information for all of the products.
  • The customer table has a customer_id that has an auto_increment. A typical customer table would have a lot more columns, and sometimes additional detail tables.
  • The corder table (named so because order is an SQL reserved word) has an order_id auto-increment column. It also has foreign keys into customer(customer_id) and product(sku).

Next Steps #

You can now proceed with MoveTables.

Or alternatively, if you would like to teardown your example:

./401_teardown.sh
rm -rf vtdataroot