I have a cluster 2.2.1 with 3 nodes. 4 CPU / 14 Gb RAM / SSD. Java(TM) SE 1.8.0_66-b17
ES_HEAP is 7 gb.
RefreshInterval set to 30s.
I'm bulk indexing documents. There is no search query others than for Marvel monitoring.
I see a lot of spikes on the JVM Heap usage - https://infinit.io/_/3jvRpGs
What could explain the behaviour. Is it normal ? Any parameters to check ?
I have another cluster, with the same configuration and i don't see theses spikes.
Thanks for your help!
Here is a new screenshot: https://infinit.io/_/p3h5YDG
Between 16h40 and 17h40 - Bulk index - And after the cluster is idle. Why the heap is increasing and then dropped ?