Hi. I realized that ES 2.x has two types of caches (i. Node Query Cache, ii. Shard Request Cache) What I really wanted is "Shard Request Cache" which is disabled by default, so that I'd like to enable it. Before enabling it, I'm wondering why "Shard Request Cache" is disabled by default and why it…

Hi @Brad_Jungsu_Heo , [image] Brad_Jungsu_Heo: Before enabling it, I'm wondering why "Shard Request Cache" is disabled by default Before Elasticsearch 5, some queries were not benefiting enough from this cache (see also a related Github issue ). In Elasticsearch 5, we significantly improved it…

Excellent! Helped me a lot. Thanks.

Great, you're welcome. :slight_smile:

Sorry to piggyback on another thread, but I have a very similar question -- Is there a way to enable this for an index template? It's not maintainable to have to set this setting for every daily index, as seen in the ' Shard Request cache ' page.

Hi @seth.yes , I don't see any reason why this shouldn't work. This should do: PUT /_template/default_template { "template" : "*", "order" : 0, "settings" : { "index.requests.cache.enable": true } } Daniel

That indeed worked. Thanks Daniel!

Discuss the Elastic Stack

Can I enable "Shard Request Cache" without performance loss?

Elastic Stack Elasticsearch

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Elasticsearch cache seems doesn't work Elasticsearch	2	1700	July 5, 2017
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Can I enable "Shard Request Cache" without performance loss?

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