[DOC-9267] Guidance for Search Service Sizing#4078
[DOC-9267] Guidance for Search Service Sizing#4078sarahlwelton wants to merge 9 commits intorelease/8.0from
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| Based on these variables, the required vCPUs could be either: | ||
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| * stem:[290], using a value of 300 in the vCPU calculation. |
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We should have two cases for 150 & 200 respectively instead of 200 & 300 as 150 & 200 are the values of QPS/vCPU that we have documented earlier
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| Based on these variables, the required vCPUs would be stem:[40], based on the more complex queries needing a higher QPS per vCPU and using a value of 300 in the calculation. |
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Same here, the value should be 200
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@sarahlwelton I've some comments around search index nomenclature and requirements for sizing right.
I think the estimation itself @TusharMadaan04 's done nice work on and you've captured it quite well here.
| Search Service nodes manage Search indexes and serve your Search queries. | ||
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| Basic Search indexes are lists of all the unique terms that appear in the documents on your cluster. | ||
| For each term, the Search index also contains a list of the documents where that term appears. |
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It'd be good to use the nomenclature - inverted index here .. which is the primary data structure within the search index that indicates the list of the documents where the term appears.
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Sure, that's easy enough to add
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| Basic Search indexes are lists of all the unique terms that appear in the documents on your cluster. | ||
| For each term, the Search index also contains a list of the documents where that term appears. | ||
| These lists inside a Search index can cause the Search index to be larger than your original dataset. |
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This is a possibility, it depends very much on the data though .. in many a situation it could be lesser too because we de-dup terms/prefixes/sub-strings/suffixes in the index and the inverted-index/postings-lists are compressed bitmaps alongside a map for doc keys.
Will defer to your judgement on how to frame all of this :)
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Perhaps this framing works better, just to keep things accurate?
…lude scenarios for numeric and geospatial sizing
…formatting. Repeat that best sizing results come from support for numeric and geo workloads
sarahlwelton
changed the title
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The long-awaited guidance for sizing the Search Service in a Couchbase Server deployment.
Preview URL:
https://preview.docs-test.couchbase.com/docs-server-DOC-9267-fts-sizing/server/current/install/sizing-general.html#sizing-search-service-nodes
You will need the Docs Team credentials on Confluence.