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

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