I have a mysql cluster with 2 sql nodes, I want to use yii2 to connect this cluster without more coding. It's perfect with Elastich search cluster with a thirth party doing like the bellow:
'elasticsearch' => [
'class' => 'yii\elasticsearch\Connection',
'nodes' => [
['http_address' => '127.0.0.1:9200'],
// configure more hosts if you have a cluster
],
'dslVersion' => 7,
],
How can we do this with a mysql cluster?
after a range time for testing, I have an easy solution want to share for everyone needed.
We just use Yii db replication config, the master's array config is the nodes of mysql ndb cluster, that't it!
[
'class' => 'yii\db\Connection',
// common configuration for masters
'masterConfig' => [
'username' => 'sqlnodeuser',
'password' => 'sqlnodepass',
'attributes' => [
// use a smaller connection timeout
PDO::ATTR_TIMEOUT => 10,
],
],
// list of master configurations
'masters' => [
['dsn' => 'dsn for ndb sql node 1'],
['dsn' => 'dsn for ndb sql node 2'],
],
]
from yii2 official document: https://www.yiiframework.com/doc/guide/2.0/en/db-dao
Related
Have done Master Slave configuration as per official Yii2 documentation. Below is actual configuration look like,
'db' => [
'class' => 'yii\db\Connection',
'dsn' => 'mysql:host=1.1.1.1;dbname=master_db',
'username' => 'user',
'password' => 'password',
'charset' => 'utf8',
'enableSchemaCache' => true,
'schemaCacheDuration' => 10,
'schemaCache' => 'cache',
'slaveConfig' => [
'username' => 'slave_user',
'password' => 'slave_password',
'charset' => 'utf8',
'attributes' => [
// use a smaller connection timeout
PDO::ATTR_TIMEOUT => 10,
],
'enableSchemaCache' => true,
'schemaCacheDuration' => 10,
'schemaCache' => 'cache',
],
'slaves' => [
['dsn' => 'mysql:host=2.2.2.2;dbname=slave_db']
],
],
It always connect master database even if slave server is up and reachable.
Surprisingly replacing current master config with slave one works, moreover if try to connect slave database from command line it get connected in a moment but unable to achieve same with above configuration.
Wondering if there is any parameters missing in configuration or any other way to get things working like ideal read write splitting?
issue was resolved by adding connection class in the slaveConfig,
'class' => 'yii\db\Connection'
I am trying to use the yii2-queue
https://github.com/yiisoft/yii2-queue/blob/master/docs/guide/usage.md
It says:
In order to use the extension you have to configure it like the
following:
return [
'bootstrap' => [
'queue', // The component registers its own console commands
],
'components' => [
'queue' => [
'class' => \yii\queue\<driver>\Queue::class,
'as log' => \yii\queue\LogBehavior::class,
// Other driver options
],
],
];
My question is simple: In which PHP file, in which directory, should I put this code?
Note: I am using the Basic template.
For Yii2 Basic Template config/console.php
For Yii2 Advanced Template console/config/main.php
return [
'bootstrap' => [
'log',
'queue',
],
'components' => [
'queue' => [
'class' => \yii\queue\db\Queue::class,
'db' => 'db', // DB connection component or its config
'tableName' => '{{%queue}}', // Table name
'channel' => 'default', // Queue channel key
'mutex' => \yii\mutex\MysqlMutex::class, // Mutex that used to sync queries
'as log' => \yii\queue\LogBehavior::class,
// 'deleteReleased' => YII_ENV_PROD,
],
]
];
Refer Yii2 Queue extension guide
Add to the main.php file in backend or frond end you are using like this
'bootstrap' => ['log', 'queue'],
Add this to under component array
'queue' => [
'class' => Queue::class,
'db' => 'db', // DB connection component or its config
'tableName' => '{{%db_queue}}', // Table name
'channel' => 'default', // Queue channel key
'mutex' => MysqlMutex::class, // Mutex used to sync queries
]
To make it workfull you need to do same in console /config/main.php
file and run the command listen form documentaiton
It is very simple to configure it on yii2 basic, add the following configuration on config/web.php file, and for yii2 advanced if you are using frontend then add in frontend/config/main.php, if you are using backend then add to to backend/config.main.php.
Just like this
'components' => [
'request' => [
'cookieValidationKey' => 'htXdOInCiP6ut4gNbDO2',
'csrfParam' => '_frontendCSRF',
],
'queue' => [
'class' => \yii\queue\<driver>\Queue::class,
'as log' => \yii\queue\LogBehavior::class,
// Other driver options
],
]
I installed the yii2 advanced template, and I'm now at migration point where I should create a new database and migrate the app to it.
but I already have a database full of data and I want to use it with yii2 without modifying anything
Open the file
common/config/main.php
and add the parameters for your database connection
<?php
return [
'components' => [
'db' => [
'class' => 'yii\db\Connection',
'dsn' => '',
'username' => '',
'password' => '',
'charset' => 'utf8',
],
],
];
This question already has an answer here:
Override Yii2 Swiftmailer Recipient
(1 answer)
Closed 5 years ago.
During the development and testing, I want the Yii2 mailer (swiftmailer) not to send emails to actual addresses, but replace it with developers` emails. Is there any setting in config to do it?
Just set the useFileTransport to true in component configuration for the development environment and all emails will not be sent but will be saved as files so you can easily test everything.
You should set configs for prod and dev environment.
Path for dev config (if you have advanced application template): yourProject/environments/dev/common/config/main-local.php and for prod: yourProject/environments/prod/common/config/main-local.php.
You may use EmailTarget class for logs.
Example of config for dev environment to reach the clue:
return [
'bootstrap' => ['log'],
'components' => [
...
'mailer' => [
'class' => 'yii\swiftmailer\Mailer',
'viewPath' => '#common/mail',
'useFileTransport' => true,//set this property to false to send mails to real email addresses
//comment the following array to send mail using php's mail function
],
'log' => [
'targets' =>
[
[
'class' => 'yii\log\EmailTarget',
'levels' => ['error'],
'except' => ['yii\web\HttpException:404'],
'message' => [
'to' => ['example#mail.ru'],
'from' => ['yourproject#mail.ru'],
'subject' => ' Errors ',
]
],
],
],
],
];
And similarly for prod environment but with different emails.
If you don't want to use EmailTarget class you may just set your emails for dev in params config here: yourProject/environments/dev/common/config/params-local.php.
And path for prod: yourProject/environments/prod/common/config/params-local.php
Params config example:
return [
'sendToEmails' => ['email1#mail.ru', 'email2#mail.ru']
];
And then you may use the variable in your code this way: Yii::$app->params['sendToEmails'] to get the array of emails to send messages to.
Don't forget to do php init command in your project after compliting your configs.
You may see the detailed docs about environments here.
I need to install an app written in Yii 2 on my local computer. I installed composer and initiated the app with:
php /path/to/yii-application/init
Now I need to "create a new database and adjust the components['db'] configuration in common/config/main-local.php accordingly."
I have no clue how to do that.
1) Create database on your server.
2) Open common/config/main-local.php
Edit components to:
'components' => [
'db' => [
'class' => 'yii\db\Connection',
'dsn' => 'mysql:host=localhost;dbname=DATABASE_NAME',
'username' => 'DATABASE_USER',
'password' => 'DATABASE_PASSWORD',
'charset' => 'utf8',
],
If using MAMP with mac then edit dsn line to :
'dsn' => 'mysql:unix_socket=/Applications/MAMP/tmp/mysql/mysql.sock;dbname=DATABASE_NAME'