We have an ES (version 1.2.4) cluster with 5 nodes. During stress tests on the cluster I notice that one node is using much more (33-50%) heap space and cpu than the other nodes. Eventually this node uses almost all heap space causing slow queries while other nodes should still be fine. As we use a…

One node in cluster is using (a lot) more heap space and cpu

klahnakoski (Kyle Lahnakoski) September 16, 2015, 6:02pm 3

I have seen this happen during bulk loading[1]: One node has the majority of primary shards, and will crash as a result

Topic		Replies	Views
One node taking much more space than others Elasticsearch elastic-stack-monitoring	2	2714	April 20, 2019
Elasticsearch heap issues Elasticsearch	4	438	July 5, 2017
Disk space per node in for ES cluster is not balanced across the nodes Elasticsearch	4	5224	December 3, 2018
Shards per node, Heap, 100% CPU....help please Elasticsearch	5	401	August 18, 2021
High cpu usage when ES loads more and more shards Elasticsearch	1	586	August 6, 2018