Magento 2 data migration RuntimeException

Question

I am learning how to convert Magento 1.x to Magento 2.x

I installed fresh Magento ver. 1.9.3.8 from GitHub mirror and fresh Magento 2.2.3 using composer

maddy@maddy:/var/www/html/magento-composer$ sudo php bin/magento --version
[sudo] password for maddy: 
Magento CLI version 2.2.3

maddy@maddy:/var/www/html/magento-composer$

In magento 1.9.3 i created one product, one category and placed one order now i am trying to migrate it to fresh Magento 2.

i followed this link Install Data Migration Tool to install the toool.

composer config repositories.magento composer https://repo.magento.com composer require magento/data-migration-tool:2.2.3

but when i run above commands i got

  [RuntimeException]                                                           
  You must pass the type and a url. Example: php composer.phar config reposit  
  ories.foo vcs https://bar.com                                                


config [-g|--global] [-e|--editor] [-a|--auth] [--unset] [-l|--list] [-f|--file FILE] [--absolute] [--] [<setting-key>] [<setting-value>]...

maddy@maddy:/var/www/html/magento-composer$ 

I am not able to solve this, can anyone see what is the issue.

Update: if i run below command i got some error realated to memory

maddy@maddy:/var/www/html/magento-composer$ composer require magento/data-migration-tool:2.2.3

Installation failed, reverting ./composer.json to its original content.
The following exception is caused by a lack of memory and not having swap configured
Check https://getcomposer.org/doc/articles/troubleshooting.md#proc-open-fork-failed-errors for details


  [ErrorException]                                   
  proc_open(): fork failed - Cannot allocate memory 



maddy@maddy:/var/www/html/magento-composer$ free -m
              total        used        free      shared  buff/cache   available
Mem:           3868        2758         105         303        1005         476
Swap:           475         470           5
maddy@maddy:/var/www/html/magento-composer$ 

Thank You

Answer 1

composer config repositories.magento composer https://repo.magento.com

then

composer require magento/data-migration-tool:2.2.3

EDIT: Second question:

proc_open(): fork failed - Cannot allocate memory

Adjust PHP memory_limit

Check also in var/www/html/magento-composer/.user.ini - You will see there some php config values.

Validate the change with php -i | grep memory_limit in console.

Answer 2

Please execute this command from your Magento root directory to migrate Magento1 to Magento2,

• composer update
• composer config repositories.data-migration-tool git https://github.com/magento/data-migration-tool
• composer require magento/data-migration-tool:2.2.3
• php bin/magento migrate:settings vendor/magento/data-migration-tool/etc/opensource-to-opensource/1.9.2.4/config.xml
• php bin/magento migrate:data --reset vendor/magento/data-migration-tool/etc/opensource-to-opensource/1.9.2.4/config.xml
• Flush all Magento 2 cache types
• Reindex all Magento 2 indexers

Replace 1.9.2.4 with your Magento1 version.

I hope this will help you.