A recent attempt to run an update composer (regular activity for many of us), I had a memory limit issue.  This was surprising because the memory setting via Plesk is set to 2G.  Yet through Terminal it was showing only 128MB.  What gives??   The error I was seeing: PHP Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 32 bytes) in phar:///usr/lib64/plesk-9.0/composer.phar/src/Composer/DependencyResolver/Pool.php on line...