PHP Composer update cannot allocate memory error using Laravel 4

Question

I just can t solve this one   I m on Linode 1G RAM basic plan  Trying to install a package via Composer and it s not letting me  My memory limit is set to  -1  on PHP ini  Is there anything else I can do to get this installed   Loading composer repositories with package information Updating dependencies  including require-dev    - Installing thujohn rss  dev-master df80a7d      Downloading  100           PHP Fatal error   Uncaught exception  ErrorException  with message  proc open    fork failed - Cannot allocate memory  in phar    usr local bin composer vendor symfony console Symfony Component Console Application php 975 Stack trace   0  internal function   Composer Util ErrorHandler  handle 2   proc open    fo       phar    usr loc      975  Array   1 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 975   proc open  stty -a   grep       Array  NULL  NULL  NULL  Array   2 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 853   Symfony Component Console Application- gt getSttyColumns    3 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 818   Symfony Component Console Application- gt getTerminalDimensions    4 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 752   Symfony Component Console Application- gt getTerminalWidth    5 phar    usr local bin com in phar    usr local bin composer vendor symfony console Symfony Component Console Application php on line 975  Fatal error  Uncaught exception  ErrorException  with message  proc open    fork failed - Cannot allocate memory  in phar    usr local bin composer vendor symfony console Symfony Component Console Application php 975 Stack trace   0  internal function   Composer Util ErrorHandler  handle 2   proc open    fo       phar    usr loc      975  Array   1 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 975   proc open  stty -a   grep       Array  NULL  NULL  NULL  Array   2 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 853   Symfony Component Console Application- gt getSttyColumns    3 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 818   Symfony Component Console Application- gt getTerminalDimensions    4 phar    usr local bin composer vendor symfony console Symfony Component Console Application php 752   Symfony Component Console Application- gt getTerminalWidth    5 phar    usr local bin com in phar    usr local bin composer vendor symfony console Symfony Component Console Application php on line 975

User · Answer

Make a swap and run composer command again  I hope it ll work for you      dd if  dev zero of  swapfile bs 1024 count 512k    mkswap  swapfile    swapon  swapfile    echo   swapfile       none    swap    sw      0       0    gt  gt   etc fstab    echo 0  gt   proc sys vm swappiness    chown root root  swapfile    chmod 0600  swapfile

User · Answer

I solved the same problem in Vagrant  I increased the value of memory limit and delete composer cache  sudo rm -R    composer and finally vagrant reload

User · Answer

Here are the steps to fix the problem   instant fast SWAP file allocation method used   Server SWAP Setup  Ubuntu 16 04 SWAP to Fix Out of Memory Errors   Check if you have swap already  memory and disk size       sudo swapon -s     free -m     df -h   Make swap file   change 1G to 4G if you want 4GB SWAP memory       sudo fallocate -l 1G  swapfile    Check swap file       ls -lh  swapfile   Assign Swap File       sudo chmod 600  swapfile     sudo mkswap  swapfile     sudo swapon  swapfile   Check if swap OK  memory and disk size       sudo swapon -s     free -m     df -h   Attach Swap File on System Restart       sudo nano  etc fstab          swapfile   none    swap    sw    0   0   Adjust Swap File Settings             cat  proc sys vm swappiness     cat  proc sys vm vfs cache pressure      sudo sysctl vm swappiness 10     sudo sysctl vm vfs cache pressure 50      sudo nano  etc sysctl conf   SWAP File Priority   0-100     0  Don t put to swap   100  Put on SWAP and free the RAM           vm swappiness 10   Remove inode from cache   100  system removes inode information from the cache too quickly           vm vfs cache pressure   50

User · Answer

I tried by just deleting the vendor folder and composer lock file and then i run the command composer clear-cache and then composer install  So it working without any error

User · Answer

I had a similar issue on the cheapest server  512MB RAM  hosted with DigitalOcean  and I was also running Jenkins CI on the same server  After I stopped the Jenkins instance the composer install command worked  well  to a point  it failed with the mcrypt extension missing besides already being installed     Maybe if you have another app running on the server  maybe its worth trying to stop it and re-running the command

User · Answer

I had the same problem using composer in wsl2  Microsoft WSL team introduced a file called  wslconfig for tweaking WSL2 settings  You basically have to create that file at  UserProfile  wslconfig and set the settings below   wsl2  memory 6GB    Any size you feel like swap 30GB localhostForwarding true  Restart your computer  and from now on  you won t have any problem with high memory consumption  Hopefully  it helps

User · Answer

Easy  type this commands   rm -rf vendor   rm -rf composer lock  php composer install --prefer-dist  Should work for low memory machines

User · Answer

I had a same issue on vagrant  I fixed it by allcate more memory    config vm provider  virtualbox do  vb        vb customize   modifyvm    id   --memory    1024    end

User · Answer

Sometimes by self-updating composer it solves the problem  php composer phar self-update   Cheers

User · Answer

A bit old but just in case someone new is looking for a solution  updating your PHP version can fix the issue   Also you should be committing your composer lock file and doing a composer install on a production environment which is less resource intensive   More details here  https   github com composer composer issues 1898 issuecomment-23453850

User · Answer

have same problem with php composer phar update on my 512mb hosting   solved with php composer phar install

User · Answer

Please disable js bundling and increase memory  That should fix it  I fixed mine by disabling js bundling   Thanks

User · Answer

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

User · Answer

I get into this situation most of the times so normally i used to follow the step of setting the swap memory   But now i found a simple alternate trick which worked for me   Run     composer update --no-dev Other than composer update

User · Answer

As composer troubleshooting guide here This could be happening because the VPS runs out of memory and has no Swap space enabled   free -m   To enable the swap you can use for example   sudo  bin dd if  dev zero of  var swap 1 bs 1M count 1024 sudo  sbin mkswap  var swap 1 sudo  sbin swapon  var swap 1   Or if above not worked then you can try create a swap file  sudo fallocate -l 2G  swapfile sudo chmod 600  swapfile sudo mkswap  swapfile sudo swapon  swapfile

User · Answer

edit php ini file and increase memory limit value       memory limit 1G   will solve this issue

User · Answer

In my case I tried everything that was listed above  I was using Laravel and Vagrant with 4GB of memory and a swap  with memory limit set to -1  I deleted the vendor  and tried other PHP-versions  Finally  I managed it to work by running  vagrant halt vagrant up   And then composer install worked again as usual

User · Answer

I increased the PHP memory limit from the default 128M to 512M and restart the server  That solved the problem

User · Answer

I use it for 500MB RAM and it works for me  php -d memory limit -1  usr local bin composer install

User · Answer

composer update  Loading composer repositories with package information Updating dependencies  including require-dev      mmap   failed   12  Cannot allocate memory  Update memory on Server and require  4G  Change 4GB Ram  try to change server type or add more ram   2 Files We need to edit    on command     cd  var www html   nano  htaccess   and edit  memory limit 756M    to 4G    Php ini on php 7 0    cd     php    -ini   sudo nano  etc php-7 0 ini   memory limit   128M to 4G   AWS  AMAZONLINUX  MAGENTO2  PHP7 0

User · Answer

Try   it s basically raising the swap memory  sudo  bin dd if  dev zero of  var swap 1 bs 1M count 1024  amp  amp  sudo  sbin mkswap  var swap 1  amp  amp  sudo  sbin swapon  var swap 1

User · Answer

I have faced the same issue  I am on a AWS Free Microinstance which has less memory  I always try one of the below options and it always works  Before all this please check if you have the latest version of composer installed   sudo php -dmemory limit 750M composer phar update   or remove the contents of the vendor folder and try composer update   sudo rm -rf vendor sudo php -dmemory limit 750M composer phar update --no-scripts --prefer-dist sudo php artisan --dump-autoload   The second option tries to update all the components  if there is no update  it picks up the package from the cache else picks up from the dist  Note  Please change the memory limit as per your choice   or   Create a swap partition and try  Swap partition is the portion of the hard drive that linux uses as virtual memory when it runs out of physical memory  It s similar to the windows swap file only instead of using an actual file  linux uses a partition on the hard drive instead   Hope this helps

User · Answer

Looks like you runs out of swap memory  try this   bin dd if  dev zero of  var swap 1 bs 1M count 1024  sbin mkswap  var swap 1  sbin swapon  var swap 1   as mentioned by  BlackBurn027 on comments below  this solution was described in here

User · Answer

you can use the following to check your free  swap  memory  free -m  total used free shared buffers cached  Mem  2048 357 1690 0 0 237 -   buffers cache  119 1928 Swap  0 0 0   To enable the swap you can use for example    bin dd if  dev zero of  var swap 1 bs 1M count 1024  sbin mkswap  var swap 1  sbin swapon  var swap 1

User · Answer

Here is the workaround that I found that works for me every time   df -h  dd if  dev zero of  swapfile bs 1M count 1024 sudo dd if  dev zero of  swapfile bs 1M count 1024 mkswap  swapfile sudo chmod 600  swapfile sudo mkswap  swapfile sudo swapon  swapfile echo  echo   swapfile  none  swap  defaults  0  0   gt  gt   etc fstab    sudo sh  free -m  confirm u see your swap there  total used free shared buffers cached Mem  494 335 158 0 19 62 -   buffers cache  254 240 Swap  1023 3 1020  watch free -m

User · Answer

This seems to be a recurring issue with 1GB and smaller server instances  Apart from trying to shutdown processes and tweak swap settings  you could install on a local machine and upload

User · Answer

Try this    bin dd if  dev zero of  var swap 1 bs 1M count 1024  sbin mkswap  var swap 1  sbin swapon  var swap 1   This work for me on Centos 6

[php] PHP Composer update "cannot allocate memory" error (using Laravel 4)

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