When running on AWS, I found that what the "disk" that you are writing to is the most critical issue for Ignite. EC2 instances with local SSDs have about 20x the write rate as a multiple 3 TB GP2 problems, and using actual disks (e.g., EBS) for Ignite Persistence storage is a non-starter. Once you have the right storage, the other parameter settings can tweak your performance higher.
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