When bulk insert docs, is this heap usage normal?

Elastic Stack Elasticsearch
#1

I am bulk insert docs into elasticsearch2.3.3 using bulk processor, when I moniter the heap usage about elasticsearch, its like this

es-heap-usage.png1093×615 144 KB

is this normal or I have wrong configration? Thanks.

#2

That pattern is normal in heap usage for all Java apps. It is a fairly
healthy shape.

#3