Bulk Loader transaction scope (blank node identification)

[MichelDiz]

@apete

How much memory does the --xidmap option need to function properly? Is there some metric bytes per unique blank node?

Not sure

@apete

With the --xidmap option memory consumption never stops growing, and the process eventually crashes.

let me ping @Anurag and @ibrahim - Maybe it needs a refactoring to use jemalloc or something.