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Example code of adgoal/dbal-fault-tolerance

Informations about the package dbal-fault-tolerance

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License

DBALFaultTolerance

Auto reconnect on Doctrine MySql has gone away exceptions on doctrine/dbal >=2.3, <3.0.

Installation

Configuration

In order to use DBALFaultTolerance you have to set wrapperClass and driverClass connection params. You can choose how many times Doctrine should be able to reconnect, setting x_reconnect_attempts driver option. Its value should be an int.

You can force ignore the transaction level using the parameters : force_ignore_transaction_level.

An example of configuration at connection instantiation time:

An example of yaml configuration on Symfony 2 projects:

An example of configuration on Zend Framework 2/3 projects:

You can use wrapper class Adgoal\DBALFaultTolerance\Connections\MasterSlaveConnection if you are using master / slave Doctrine configuration.

Usage

To force a reconnection try after a long running task you can call

before performing any other operation different from SELECT.

Instead, in case your next query will be a SELECT, reconnection will be automagically done.

From v1.6 automagically reconnection is enabled also during $em->getConnection()->beginTransaction() calls, and this works also during simple $em->flush(), if out of a previous transaction.

Thanks

Thanks to Dieter Peeters and his proposal on DBAL-275. Check it out if you are using doctrine/dbal <2.3.

All versions of dbal-fault-tolerance with dependencies

PHP Build Version
Package Version
Requires php Version ^7.1
ext-pdo Version *
doctrine/dbal Version ^2.3
psr/log Version ^1.0
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