Heap vs doc_value

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1

Hi Everyone

i have a question about doc_value, as a rule of thumb, we should give half memory to ES heap, but i think this is for ES 1.x, is that right? with ES 2.x, Doc values are enabled by default, so should i still follow this rule?

for example if i have a server with 64GB memeory , give 30GB to ES heap , is that still correct for ES2.X?

please advice

Thanks
Alps

2

Yes..

3

Hi Mark

thank you for your response , but according to the document , we should give more memory to filesystem cache

so for a 64GB server , should we allocate 10gb to jvm heap and leave rest of memory to system? please advice

Thanks
Alps

4

No, it says you can, not that you should.

Will all the things you do fit in 10GB of heap?