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Try federation when backfill fails to find events in the database (#2113)

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* Try to backfill via federation in error cases

* Cleaner retry for backfill

* Simpler condition
This commit is contained in:
Neil Alexander 2022-01-27 15:52:32 +00:00 committed by GitHub
parent a763cbb0e1
commit b6011d0d87
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 1 deletions
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6
roomserver/internal/perform/perform_backfill.go
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@ -82,10 +82,14 @@ func (r *Backfiller) PerformBackfill(
return err return err
} }
// Retrieve events from the list that was filled previously. // Retrieve events from the list that was filled previously. If we fail to get
// events from the database then attempt once to get them from federation instead.
var loadedEvents []*gomatrixserverlib.Event var loadedEvents []*gomatrixserverlib.Event
loadedEvents, err = helpers.LoadEvents(ctx, r.DB, resultNIDs) loadedEvents, err = helpers.LoadEvents(ctx, r.DB, resultNIDs)
if err != nil { if err != nil {
if _, ok := err.(types.MissingEventError); ok {
return r.backfillViaFederation(ctx, request, response)
}
return err return err
} }