Get Started - Local Install via Homebrew - 《Vitess v12.0 Documentation》

Install Vitess with Homebrew
Start a Single Keyspace Cluster
Setup Aliases
Connect to your cluster
Summary
Next Steps

Local Install via Homebrew

Instructions for using Vitess on your macOS machine for testing purposes

This guide covers installing Vitess locally to macOS 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 Homebrew package manager is also available, which requires no dependencies on your local host.

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

Install Vitess with Homebrew

Vitess supports MySQL 5.7+ and MariaDB 10.3+. Homebrew will install latest tagged Vitess Release.

$ brew install vitess
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 2 taps (homebrew/core and homebrew/cask).
==> Updated Formulae
Updated 19 formulae.
==> Updated Casks
Updated 1 cask.
==> Downloading https://homebrew.bintray.com/bottles/vitess-9.0.0.catalina.bottle.tar.gz
Already downloaded: /Users/askdba/Library/Caches/Homebrew/downloads/45991b27589a191910e89a1ce529fcdaa694bb5f36b99f1b20146f8f0fc3ee6d--vitess-9.0.0.catalina.bottle.tar.gz
==> Pouring vitess-9.0.0.catalina.bottle.tar.gz
🍺  /usr/local/Cellar/vitess/9.0.0: 268 files, 528.3MB

At this point Vitess binaries installed under default Homebrew install location at /usr/local/share/vitess.

Start a Single Keyspace Cluster

For testing purposes initiate following example;

$ cd /usr/local/share/vitess/examples/local/
$ ./101_initial_cluster.sh
add /vitess/global
add /vitess/zone1
add zone1 CellInfo
etcd start done...
Starting vtctld...
Starting MySQL for tablet zone1-0000000100...
Starting vttablet for zone1-0000000100...
HTTP/1.1 200 OK
Date: Wed, 17 Feb 2021 13:09:54 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: Wed, 17 Feb 2021 13:10:03 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: Wed, 17 Feb 2021 13:10:12 GMT
Content-Type: text/html; charset=utf-8
W0217 16:10:13.075530   65562 main.go:67] W0217 13:10:13.074510 reparent.go:188] primary-elect tablet zone1-0000000100 is not the shard primary, proceeding anyway as -force was used
W0217 16:10:13.076472   65562 main.go:67] W0217 13:10:13.075483 reparent.go:194] primary-elect tablet zone1-0000000100 is not a primary in the shard, proceeding anyway as -force was used
I0217 16:10:13.076498   65562 main.go:67] I0217 13:10:13.075729 reparent.go:225] resetting replication on tablet zone1-0000000102
I0217 16:10:13.076503   65562 main.go:67] I0217 13:10:13.075730 reparent.go:225] resetting replication on tablet zone1-0000000101
I0217 16:10:13.076508   65562 main.go:67] I0217 13:10:13.075732 reparent.go:225] resetting replication on tablet zone1-0000000100
I0217 16:10:13.649509   65562 main.go:67] I0217 13:10:13.649327 reparent.go:244] initializing primary on zone1-0000000100
I0217 16:10:13.819282   65562 main.go:67] I0217 13:10:13.818887 reparent.go:277] populating reparent journal on new primary zone1-0000000100
I0217 16:10:13.819341   65562 main.go:67] I0217 13:10:13.818928 reparent.go:284] initializing replica zone1-0000000101
I0217 16:10:13.819363   65562 main.go:67] I0217 13:10:13.819005 reparent.go:284] initializing replica zone1-0000000102
I0217 16:10:15.913013   65563 main.go:67] I0217 13:10:15.912595 tablet_executor.go:240] Received DDL request. strategy=direct
I0217 16:10:16.020590   65563 main.go:67] I0217 13:10:16.020461 tablet_executor.go:240] Received DDL request. strategy=direct
I0217 16:10:16.189170   65563 main.go:67] I0217 13:10:16.189044 tablet_executor.go:240] Received DDL request. strategy=direct
New VSchema object:
{
  "tables": {
    "corder": {
    },
    "customer": {
    },
    "product": {
    }
  }
}
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://askdba:15001/debug/status

Verify your initial cluster:

$ mysql -e "show vitess_tablets"
+-------+----------+-------+------------+---------+------------------+-----------+----------------------+
| Cell  | Keyspace | Shard | TabletType | State   | Alias            | Hostname  | MasterTermStartTime  |
+-------+----------+-------+------------+---------+------------------+-----------+----------------------+
| zone1 | commerce | 0     | PRIMARY    | SERVING | zone1-0000000100 | localhost | 2021-02-17T13:10:13Z |
| zone1 | commerce | 0     | REPLICA    | SERVING | zone1-0000000101 | localhost |                      |
| zone1 | commerce | 0     | RDONLY     | SERVING | zone1-0000000102 | localhost |                      |
+-------+----------+-------+------------+---------+------------------+-----------+----------------------+

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

$ pgrep -fl vtdataroot | awk '{print $2,$3}'
etcd --enable-v2=true
vtctld -topo_implementation
/bin/sh /usr/local/opt/mysql@5.7/bin/mysqld_safe
/usr/local/opt/mysql@5.7/bin/mysqld --defaults-file=/usr/local/Cellar/vitess/9.0.0/share/vitess/examples/local/vtdataroot/vt_0000000100/my.cnf
vttablet -topo_implementation
/bin/sh /usr/local/opt/mysql@5.7/bin/mysqld_safe
/usr/local/opt/mysql@5.7/bin/mysqld --defaults-file=/usr/local/Cellar/vitess/9.0.0/share/vitess/examples/local/vtdataroot/vt_0000000101/my.cnf
vttablet -topo_implementation
/bin/sh /usr/local/opt/mysql@5.7/bin/mysqld_safe
/usr/local/opt/mysql@5.7/bin/mysqld --defaults-file=/usr/local/Cellar/vitess/9.0.0/share/vitess/examples/local/vtdataroot/vt_0000000102/my.cnf
vttablet -topo_implementation
vtgate -topo_implementation

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)' # kill Vitess processes
rm -rf /usr/local/Cellar/vitess/9.0.0/share/vitess/examples/local/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:

/usr/local/share/vitess/examples/local> 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

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:

pkill -9 -f '(vtdataroot|VTDATAROOT)' # kill Vitess processes
rm -rf /usr/local/Cellar/vitess/9.0.0/share/vitess/examples/local/vtdataroot