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Faster joins: use stable identifiers #14828

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DMRobertson opened this issue Jan 12, 2023 · 1 comment · Fixed by #14832
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Faster joins: use stable identifiers #14828

DMRobertson opened this issue Jan 12, 2023 · 1 comment · Fixed by #14832
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T-Task Refactoring, removal, replacement, enabling or disabling functionality, other engineering tasks.

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DMRobertson commented Jan 12, 2023 •
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See:

Synapse issue: #14828
Synapse PR: #14832
Complement PR: matrix-org/complement#583
GMSL PR: matrix-org/gomatrixserverlib#350
MSC: matrix-org/matrix-spec-proposals#3706
Spec diff: matrix-org/matrix-spec#1393

Also related in Synapse: #14854, #14841
@DMRobertson DMRobertson added the T-Task Refactoring, removal, replacement, enabling or disabling functionality, other engineering tasks. label Jan 12, 2023
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DMRobertson commented Jan 12, 2023 •
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Our thinking is to just do these renames and screw backwards compat. Experimental feature etc, no promises; if you want to use faster joins both you and the resident server will have to upgrade to some minimum Synapse version with the renames.

On second thought: to assist in testing/rollout we think that it will be prudent

  • to send both the old and new query parameter
  • to read the new response field, falling back to the old one

But we should consider it a future maintenance task to remove the fallback, say ~6 months' time.

@DMRobertson DMRobertson mentioned this issue Jan 12, 2023
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@DMRobertson DMRobertson self-assigned this Jan 12, 2023
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@DMRobertson DMRobertson changed the title Faster joins: handle query parameter and field renames in MSC3706 Faster joins: use stable identifiers Jan 12, 2023
@DMRobertson DMRobertson mentioned this issue Jan 12, 2023
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DMRobertson added a commit to matrix-org/gomatrixserverlib that referenced this issue Jan 13, 2023
@DMRobertson
Use stable identifiers from MSC3706 (Faster joins) (#350)
67e0601 
I haven't made any effort to maintain backwards compatibility (unlike in
matrix-org/synapse#14832). I'm happy to do so if
needed, but might need some guidance.

Synapse issue: matrix-org/synapse#14828
Synapse PR: matrix-org/synapse#14832
Complement PR: matrix-org/complement#583
GMSL PR: #350
MSC: matrix-org/matrix-spec-proposals#3706
Spec diff: matrix-org/matrix-spec#1393

### Pull Request Checklist

* [x] Pull request includes a [sign
off](https://github.com/matrix-org/dendrite/blob/master/docs/CONTRIBUTING.md#sign-off)

Signed-off-by: `David Robertson <davidr@element.io>`
@DMRobertson DMRobertson mentioned this issue Jan 16, 2023
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Use stable identifiers for faster joins matrix-org/synapse
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