Migration of table from MySQL to Oracle using GoldenGate

I have a table of size 120 GB in MySQL 5.7 which I need to migrate to Oracle 12c. I am using Oracle GoldenGate for initial load of the table. I tried with initial load of full table but it consumed complete RAM and I had to cancel it. Even trying to run with primary key range initial load for 1/20th of table at a time, but it abends after certain time with: > ERROR OGG-01233 Send TCP params error: TCP/IP error 110 (Connection timed out) Is there any better approach to get this completed?