Contention

[amircs]

If you have an unordered annotation reference file that you would like to import it. You should first sort it based on referenceId and positions and then import it. Otherwise, you're increasing the chance of overlapping b/w multiple batchRequests which results into high contention.

Contention case:
batch1 = [chr1pos1, chr1pos5, chr1pos10]
batch2 = [chr1pos2, chr1pos6, chr1pos20]