Tag Archives: Laravel

21 February, 2024

Laravel Homestead – MongoDB not starting up

I recently had to work on an old Laravel project using MongoDB. Laravel Homestead is a great development environment solution that supports it out of the box. I didn’t expect any issues – it worked just fine previous time I worked on that project. I got the latest version of Homestead, upgraded vagrant box and to my surprise the provisioning failed. On my second attempt I disabled Mongo and it worked just fine. Uh oh!

I spent quite some time looking for a solution. To my surprise there was nothing recent or solid. I started debugging it and I found out the server was unable to start and produced no logs!

sudo service mongod status
● mongod.service - MongoDB Database Server
     Loaded: loaded (/lib/systemd/system/mongod.service; enabled; vendor preset: enabled)
     Active: failed (Result: signal) since Wed 2024-02-21 17:18:06 UTC; 13min ago
       Docs: https://docs.mongodb.org/manual
   Main PID: 729 (code=killed, signal=ILL)

Feb 21 17:18:04 homestead systemd[1]: Started MongoDB Database Server.
Feb 21 17:18:06 homestead systemd[1]: mongod.service: Main process exited, code=killed, status=4/ILL
Feb 21 17:18:06 homestead systemd[1]: mongod.service: Failed with result 'signal'.

Interesting, right? The signal=ILL part suggests that the CPU tried to process an invalid instruction. This made my search way easier. Turns out that recent Mongo versions require very specific set of CPU instructions, which collide with Windows virtualization.

AVX – the set of instructions required by MongoDB – is conflicting with Hyper-V, Windows virtualization solution. It might be enabled on your system, especially if you’re using WSL.

Run command prompt / Power Shell as an administrator and issue the commands below to disable Hyper-V:

bcdedit /set hypervisorlaunchtype off
DISM /Online /Disable-Feature:Microsoft-Hyper-V

Restart your system to apply the changes.

If you have Mongo installed on your Homestead and the provisioning (or manual install via /vagrant/scripts/features/mongodb.sh) failed – you might be missing the homestead user. You can add it by issuing the command below:

mongosh admin --eval "db.createUser({user:'homestead',pwd:'secret',roles:['root']})"

That’s it! Have fun.

5 April, 2016

Laravel, laravel-mongodb, Laravel Forge, and PHP 7

Oookay, so for some reason the mix from the title was a big deal. When you try to install laravel-mongodb package on servers created by Laravel Homestead or Forge – it’s going to fail. To be specific, when you try to run:

composer require jenssegers/mongodb

composer is going to start bitching about missing mongodb php extension. And you can’t install it until you run:

sudo apt-get install libcurl4-openssl-dev

Then you’ll be good to go. Install the new mongodb extension by running:

sudo pecl install mongodb

and then add the following line to your php.ini file (probably /etc/php/7.0/cli/php.ini & /etc/php/7.0/fpm/php.ini):

extension=mongodb.so

That should be it. Don’t forget to restart nginx.

13 January, 2016

laravel-mongodb – complex query example

Complex queries can be pretty hard to translate. I tried to convert a PostgreSQL query for grouping by a boolean and a date at the same time. Here is my original Eloquent query:

ModelName::selectRaw('COUNT(*) AS "count", boolean_one, date_trunc(\'day\', created_at) as date')
    ->where('created_at', '>=', Carbon::now()->subMonth())
    ->where('boolean_two', '=', $booleanTwo)
    ->where('string_value', 'LIKE', $searchForString . '%')
    ->groupBy('boolean_one')->groupBy('date')
    ->orderBy('date')->get();

And here’s the same query translated, using Moloquent:

ModelName::raw(function ($collection) {
    return $collection->aggregate([
        [
            '$match' => [
                'created_at'   => ['$gt' => new MongoDate(Carbon::now()->subMonths(1)->timestamp)],
                'boolean_two'  => $booleanTwo,
                'string_value' => ['$regex' => new MongoRegex('/.*' . $searchForString . '.*/')]
            ],
        ],
        [

            '$group' => [
                '_id'   => [
                    'month'       => ['$month' => '$created_at'],
                    'day'         => ['$dayOfMonth' => '$created_at'],
                    'year'        => ['$year' => '$created_at'],
                    'boolean_one' => '$boolean_one'
                ],
                'count' => [
                    '$sum' => 1
                ]
            ]
        ]
    ]);
});;