Swoole\Table::set(): failed to set('161'), unable to allocate memory Due to fixed table size

[Alistair-zhong]

• Octane Version: 1.4.0
• Laravel Version: 8.83.27
• PHP Version: 8.1.15
• Server & Version: Swoole 4.8.12

Description:

I got the exception recently in the php-fpm log:

 PHP Fatal error:  Uncaught ErrorException: Swoole\Table::set(): failed to set('161'), unable to allocate memory in /var/www/vendor/laravel/octane/src/Tables/SwooleTable.php:88

My server still has 10+ GB RAM, so it should not lack memory.
Then I found the tableSize in the vendor/laravel/octane/bin/createSwooleTimerTable.php is a const: 250,

if (($serverState['octaneConfig']['max_execution_time'] ?? 0) > 0) {
    $timerTable = TableFactory::make(250);

    $timerTable->column('worker_pid', Table::TYPE_INT);
    $timerTable->column('time', Table::TYPE_INT);
    $timerTable->column('fd', Table::TYPE_INT);

    $timerTable->create();

    return $timerTable;
}

but I specified the worker number in the octane:start command is 300, php /var/www/artisan octane:start --host=0.0.0.0 --port=9000 --task-workers=600 --workers=300

so I think I got this error because my worker number is larger than the const number 250.

Expected

Can tableSize be configurable or increased by worker number?

Steps To Reproduce:

I've tried these steps on a local machine but I can't reproduce it.

1. change 250 to 5 in vendor/laravel/octane/bin/createSwooleTimerTable.php
2. add a web route in the routes/web.php

Route::get('sleep', function(){
    sleep(5);
    return 'good';
});

3. start octane using command php artisan octane:start --workers=10 --max-requests=5
4. send concurrent requests to route sleep

Http::pool(function(Illuminate\Http\Client\Pool $pool){                                                                                                              array_map(
    fn($item) => $pool->get('http://127.0.0.1:8000/sleep'), 
    range(1,10));   
})

[sy-records]

You need to set the size of the table to be a bit larger, which can be changed in the config.

octane/config/octane.php

Lines 165 to 170 in f4907e7

	'tables' => [
	'example:1000' => [
	'name' => 'string:1000',
	'votes' => 'int',
	],
	],

[Alistair-zhong]

@sy-records thanks for your reply.

You need to set the size of the table to be a bit larger, which can be changed in the config.

I don't use any octane table or swoole table, but still encounter the error.
I found that Laravel/Octane uses a table to record the execution time of workers at the underlying level. If I change the max_execution_time in config/octane.php to 0, or change 250 to 1000 in the vendor/laravel/octane/bin/createSwooleTimerTable.php file, the problem stops occurring. Therefore, I think the issue is with the table used by Octane at the underlying level to track and record the execution time.

[sy-records]

Can you provide a complete error stack?

[Alistair-zhong]

Can you provide a complete error stack?

Sure.

PHP Fatal error:  Uncaught ErrorException: Swoole\Table::set(): failed to set('165'), unable to allocate memory in /var/www/vendor/laravel/octane/src/Tables/SwooleTable.php:88
Stack trace:
#0 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleError()
#1 /var/www/vendor/laravel/octane/src/Tables/SwooleTable.php(88): Swoole\Table->set()
#2 /var/www/vendor/laravel/octane/bin/swoole-server(110): Laravel\Octane\Tables\SwooleTable->set()
#3 [internal function]: {closure}()
#4 /var/www/vendor/laravel/octane/bin/swoole-server(164): Swoole\Server->start()
#5 {main}
  thrown in /var/www/vendor/laravel/octane/src/Tables/SwooleTable.php on line 88