Uncaught exception 'ErrorException' with message 'proc_open(): fork failed - Cannot allocate memory'

[kimdcottrell]

COMMAND RAN AND ERRORS THROWN
[root@s15937355 htdocs]# php composer.phar update laravel/*
PHP Fatal error: Uncaught exception 'ErrorException' with message 'proc_open(): fork failed - Cannot allocate memory' in phar:///var/www/vhosts/defaul
t/htdocs/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php:975
Stack trace:
#0 [internal function]: Composer\Util\ErrorHandler::handle(2, 'proc_open(): fo...', 'phar:///var/www...', 975, Array)
#1 phar:///var/www/vhosts/default/htdocs/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php(975): proc_open('stty -a | grep

...', Array, NULL, NULL, NULL, Array)
#2 phar:///var/www/vhosts/default/htdocs/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php(853): Symfony\Component\Console

\Application->getSttyColumns()
#3 phar:///var/www/vhosts/default/htdocs/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php(818): Symfony\Component\Console

\Application->getTerminalDimensions()
#4 phar:///var/www/vhosts/default/htdocs/composer.phar/vendor/symfony/console/Symfony/Component/Console/App in phar:///var/www/vhosts/default/htdocs/co

mposer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php on line 975

COMPOSER.JSON FILE CALLED WHEN UPDATING LARAVEL
{
"name": "laravel/framework",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"authors": [
{
"name": "Taylor Otwell",
"email": "taylorotwell@gmail.com"
}
],
"require": {
"php": ">=5.3.0",
"classpreloader/classpreloader": "1.0.",
"doctrine/dbal": "2.4.x",
"ircmaxell/password-compat": "1.0.",
"filp/whoops": "1.0.4",
"monolog/monolog": "1.5.",
"nesbot/carbon": "1.",
"patchwork/utf8": "1.1.",
"predis/predis": "0.8.",
"swiftmailer/swiftmailer": "4.3.",
"symfony/browser-kit": "2.3.",
"symfony/console": "2.3.",
"symfony/css-selector": "2.3.",
"symfony/debug": "2.3.",
"symfony/dom-crawler": "2.3.",
"symfony/event-dispatcher": "2.3.",
"symfony/finder": "2.3.",
"symfony/http-foundation": "2.3.",
"symfony/http-kernel": "2.3.",
"symfony/process": "2.3.",
"symfony/routing": "2.3.",
"symfony/translation": "2.3."
},
"replace": {
"illuminate/auth": "self.version",
"illuminate/cache": "self.version",
"illuminate/config": "self.version",
"illuminate/console": "self.version",
"illuminate/container": "self.version",
"illuminate/cookie": "self.version",
"illuminate/database": "self.version",
"illuminate/encryption": "self.version",
"illuminate/events": "self.version",
"illuminate/exception": "self.version",
"illuminate/filesystem": "self.version",
"illuminate/foundation": "self.version",
"illuminate/hashing": "self.version",
"illuminate/http": "self.version",
"illuminate/html": "self.version",
"illuminate/log": "self.version",
"illuminate/mail": "self.version",
"illuminate/pagination": "self.version",
"illuminate/queue": "self.version",
"illuminate/redis": "self.version",
"illuminate/routing": "self.version",
"illuminate/session": "self.version",
"illuminate/support": "self.version",
"illuminate/translation": "self.version",
"illuminate/validation": "self.version",
"illuminate/view": "self.version",
"illuminate/workbench": "self.version"
},
"require-dev": {
"aws/aws-sdk-php": "2.2.",
"iron-io/iron_mq": "1.4.4",
"pda/pheanstalk": "2.0.",
"mockery/mockery": "0.7.2",
"phpunit/phpunit": "3.7."
},
"autoload": {
"classmap": [
["src/Illuminate/Queue/IlluminateQueueClosure.php"]
],
"files": [
"src/Illuminate/Support/helpers.php"
],
"psr-0": {
"Illuminate": "src/"
}
},
"extra": {
"branch-alias": {
"dev-master": "4.0-dev"
}
},
"minimum-stability": "dev"
}

PHP MEMORY LIMIT
[root@s15937355 htdocs]# php -r "echo ini_get('memory_limit').PHP_EOL;"
1024M

FREE MEMORY (in megabytes)
[root@s15937355 htdocs]# free -m
total used free shared buffers cached
Mem: 2048 357 1690 0 0 237
-/+ buffers/cache: 119 1928
Swap: 0 0 0

PHP VERSION
[root@s15937355 htdocs]# php -v
PHP 5.5.0beta4 (cli) (built: Apr 25 2013 15:28:50)

Any ideas?

[kimdcottrell]

In case anyone is curious, the only workaround for this I've found is to just rename the /vendor/symfony directory by prepending it with a few underscores, run:

php composer.phar update

and then if it goes through, remove the old symfony directory.

[ronanguilloux]

See Composer's issues #945 & #1101 : Your OS probably runs out of swap memory, this is a common issue on Amazon's ec2. I also encountered it in a local vagrant instance left up too long time, & just needed to reboot to retrieve the minimum 1024Mo RAM required.

[billybigpotatoes]

Avoid tiny instances on AWS!

[brazorf]

Incrementing PHP memory_limit worked fine to me.

[rfanjul]

Try that:

/bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
/sbin/mkswap /var/swap.1
/sbin/swapon /var/swap.1

[htollefsen]

@rfanjul Thanks!

[sinner]

@rfanjul Thank you very much!

[fredriktid]

@rfanjul Did the trick, thanks!

[jeffersonsouza]

This code save life! Thanks!

[fundup]

Put memory_limit to 256M works for me

[deletosh]

@rfanjul thou rock!

[sndpl]

@kimdcottrell did you try the solution of @rfanjul ? if it worked, can you close this issue?

[tan-c]

@rfanjul works like a charm

[rleger]

Thanks!!

[jrean]

@rfanjul Thanks!

[dmitriynet]

@rfanjul Thanks!

[blue7wings]

@rfanjul Thanks!

[ozgursoy]

@rfanjul Thanks a lot, it works

[cakpep]

@rfanjul its cool