java - ElasticSearch JVM Heap goes over 75% and nodes are dead -


i running elasticsearch cluster 3 nodes. each node has heap size of 12g - es_heap_size=12g .

i uploading stats marvel can see moment nodes dead in moment jvm heap on 75%.

enter image description here

after restart nodes runs fine again. until next peak. on every peak on graph nodes not responding anymore.

some ideas?

edit: jvm heap usage last hour enter image description here

is graph looking fine?


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