@Kaur   it appears like your nifi node does not have enough system ram to allow you to use 2g and 4g settings.   I suggest increasing the node specification to at least 8gb or 16 gb of system ram and test boostrap config with 2g 4g or 4g 8g respectively.    If this answer resolves your issue or allows you to move forward, please choose to ACCEPT this solution and close this topic. If you have further dialogue on this topic please comment here or feel free to private message me. If you have new questions related to your Use Case please create separate topic and feel free to tag me in your post.   Thanks, Steven ... View more