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Details

Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 4.4.11, 5.0.4, 5.1.0-rc0
Affects Version/s: None
Component/s: Sharding
Labels:

Backwards Compatibility:
Fully Compatible
Backport Requested:

v5.0, v4.4
Sprint:
Service Arch 2021-06-28, Service Arch 2021-07-12, Service Arch 2021-08-09
Linked BF Score:
143
Story Points:
4

Description

Mirrored reads are not propagating the shardVersion field to the command that it is send to the secondary nodes (e.g. find command ). This causes some performance issues (~~SERVER-47953~~ (follow-up of HELP-15484)) when a secondary steps up: due to the lack of the shard version, mirrored commands don't have the INCLUDE_SHARD_FILTER query phase, which is the phase that ends up refreshing the routing table.

The goal of this task is to extend the void appendMirrorableRequest(BSONObjBuilder* bob) function to also propagate the shardVersion field.

Affected versions: this issue is in 4.4 and master (the original concern was raised on 4.4).

Attachments

Issue Links

causes

SERVER-72532 CommandNotFound: no such command: 'shardVersion'

Closed

is depended on by

SERVER-47953 Improve performance of cached collection refresh during cache warming

Closed

related to

SERVER-60804 Remove shard version checks from cursor_valid_after_shard_stepdown

Closed

SERVER-79471 Mirrored reads should include databaseVersion in addition to shardVersion

Closed

Activity

People

Assignee:: Alex Li

Reporter:: Sergi Mateo Bellido

Participants:: Alex Li, Githook User, Sergi Mateo Bellido, Vivian Ge

Votes:: 0 Vote for this issue

Watchers:: 13 Start watching this issue

Dates

Created:: Mar 22 2021 03:58:51 PM UTC

Updated:: Oct 29 2023 09:55:56 PM UTC

Resolved:: Jul 30 2021 02:06:54 PM UTC