In memory Indices on ES 7.x

We are planning to implement an indices on ES 7.x. Is there a way we can keep the indices on memory instead of disk? The total size of the indices will be 150 GB and shared across multiple data nodes.

Only if you create an on-memory "disk" that's handled by the OS. There's nothing in Elasticsearch that can do this for you.

Thank you so much for the information.

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