I would like to increase my memory allocation to my GlassFish instance. Could anyone please help me out. Your answer could be via the admin console or the command line, I don't mind.
Find a file domain.xml which you are using, i.e.
/usr/local/glassfish-4.1/glassfish/domains/domain1/config/domain.xml
(if using Linux you can use "locate domain.xml" (if you have mlocate installed and do "sudo updatedb"). If you use other operating systems, find manually your glassfish directory and the domain file.
Find memory settings there (Xmx) in that file and others and change it.