[DOCS-14995] [SERVER] Compound 2dsphere indexes can generate a massive number of index keys per document Created: 22/Dec/21  Updated: 13/Nov/23  Resolved: 15/Feb/22

Status: Closed
Project: Documentation
Component/s: manual, Server
Affects Version/s: None
Fix Version/s: 5.3.0, Server_Docs_20231030, Server_Docs_20231106, Server_Docs_20231105, Server_Docs_20231113

Type: Task Priority: Major - P3
Reporter: Backlog - Core Eng Program Management Team Assignee: Dave Cuthbert (Inactive)
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Documented
documents SERVER-61184 Compound 2dsphere indexes can generat... Closed
Participants:
Days since reply: 1 year, 51 weeks, 2 days ago
Epic Link: DOCSP-19447
Story Points: 3

 Description   
Downstream Change Summary

We may want to update documentation to reflect that we now limit the number of compound-2dsphere index keys that can be generated by a single document. If a document would generate more keys, the index build, insertion, or update will fail.

Description of Linked Ticket

When generating keys for 2dsphere indexes we calculate the cartesian products of all keys.

If documents contain locations with a large number of location coordinates compounded with an array of a large number of elements the resulting cartesian product can be massive in size.

When generating all these keys they are inserted into a single std::vector that needs to hold the cartesian product number of elements which can fail as the number is simply too large.



 Comments   
Comment by Githook User [ 14/Feb/22 ]

Author:

{'name': 'Dave', 'email': '69165704+davemungo@users.noreply.github.com', 'username': 'davemungo'}

Message: DOCS-14995 limit keys for 2dsphere doc indices v5.3 (#613)

  • Compatibility
  • Limits
  • Staging updates
  • Review feedback
  • Staging fixes
  • Review feedback
Comment by PM Bot [ 22/Dec/21 ]

Downstream changes updated for upstream SERVER-61184:
We may want to update documentation to reflect that we now limit the number of compound-2dsphere index keys that can be generated by a single document. If a document would generate more keys, the index build, insertion, or update will fail.

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