Details
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Task
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Status: Closed
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Major - P3
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Resolution: Fixed
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5.0.0, 5.3.0, 6.0.0
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None
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None
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2
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ServerDocs2022: Apr5 - Apr12
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Description
The following changes have been made:
- Error messages have been updated to indicate that non-voting nodes may be included in an index build commitQuourm. Our documentation incorrectly states that commitQuorum only includes "data-bearing voting replica set members". This should be updated to say "data-bearing replica set members"
- Nodes with buildIndexes:false can never be included in a commitQuorum. Previously, we incorrectly allowed non-voting buildIndexes:false nodes to be part of a commitQuorum, but these nodes should never be included, regardless of voting status.
Description of Linked Ticket
The commitQuorum option for index builds does not allow non-voting nodes to participate. With the default commitQuorum of "votingMembers", a lagged non-voting secondary, like an analytics node, can fall behind. Other voting nodes will commit, but when this secondary receives a commitIndexBuild oplog entry, it stalls until the index build completes.
There is currently no way to use commitQuorum to include the non-voting node to prevent this from happening.
commitQuorum does allow you to include non-voting nodes, however the error message we report "Not enough data-bearing voting nodes to satisfy commit quorum" is incorrect. We should also update the documentation to reflect this.
Attachments
Issue Links
- backported by
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DOCS-15233 [BACKPORT] [v5.0] commitQuorum incorrectly includes buildIndexes:false nodes and error message incorrectly says that only voting nodes are eligible
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- Closed
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DOCS-15238 [Server: BACKPORT] [v5.3] commitQuorum incorrectly includes buildIndexes:false nodes and error message incorrectly says that only voting nodes are eligible
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- Closed
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- documents
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SERVER-63531 commitQuorum incorrectly includes buildIndexes:false nodes and error message incorrectly says that only voting nodes are eligible
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- Closed
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