We have several machines with 512 GB of RAM and I wanted to know if we can set JVM heap size for Elasticsearch larger than 32 GB (up to 256 GB). This page says we should keep the heap size below the threshold for compressed ordinary object pointers (oops). However, I've found posts like this , whic…

JVM Heap size larger than 32 GB

Milad_Heydariaan (Milad Heydariaan) March 29, 2023, 11:13pm 3

8.6.2

Topic		Replies	Views
Ideal heap size for large RAM machine Elasticsearch	4	1513	January 12, 2018
Elasticsearch Heapsize query Elasticsearch	3	752	February 7, 2020
Whether the heap size of http node can be promoted to more than 32 GB? Elasticsearch	2	381	July 6, 2017
ES_HEAP_SIZE above 32g? Elasticsearch	7	2855	July 5, 2017
Use more than 32GB for heap Elasticsearch	5	7001	November 20, 2019

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JVM Heap size larger than 32 GB

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