How to load large datasets? Corrupted database

[hosting2000me]

I'm trying to load a large amount of data into the database (several hundred million entries). I'm doing this in batches. However, I discovered that there is a limit on the batch size of 1024. I found where to change this limit through a Go program. But after I increased the batch size and started uploading batches with more elements (e.g., 5000 entries), I ended up with a corrupted database that refused to load.