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[performance] cache more database calls, reduce required database calls overall (#3290)

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* improvements to caching for lists and relationship to accounts / follows

* fix nil panic in AddToList()

* ensure list related caches are correctly invalidated

* ensure returned ID lists are ordered correctly

* bump go-structr to v0.8.9 (returns early if zero uncached keys to be loaded)

* remove zero checks in uncached key load functions (go-structr now handles this)

* fix issues after rebase on upstream/main

* update the expected return order of CSV exports (since list entries are now down by entry creation date)

* rename some funcs, allow deleting list entries for multiple follow IDs at a time, fix up more tests

* use returning statements on delete to get cache invalidation info

* fixes to recent database delete changes

* fix broken list entries delete sql

* remove unused db function

* update remainder of delete functions to behave in similar way, some other small tweaks

* fix delete user sql, allow returning on err no entries

* uncomment + fix list database tests

* update remaining list tests

* update envparsing test

* add comments to each specific key being invalidated

* add more cache invalidation explanatory comments

* whoops; actually delete poll votes from database in the DeletePollByID() func

* remove added but-commented-out field

* improved comment regarding paging being disabled

* make cache invalidation comments match what's actually happening

* fix up delete query comments to match what is happening

* rename function to read a bit better

* don't use ErrNoEntries on delete when not needed (it's only needed for a RETURNING call)

* update function name in test

* move list exclusivity check to AFTER eligibility check. use log.Panic() instead of panic()

* use the poll_id column in poll_votes for selecting votes in poll ID

* fix function name
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kim 2024-09-16 16:46:09 +00:00 • committed by GitHub
commit 84279f6a6a
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68 changed files with 1683 additions and 2135 deletions
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43
internal/db/bundb/conversation.go
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@ -188,15 +188,8 @@ func (c *conversationDB) getConversationsByLastStatusIDs(
accountID,
conversationLastStatusIDs,
func(accountID string, uncached []string) ([]*gtsmodel.Conversation, error) {
// Avoid querying
// if none uncached.
count := len(uncached)
if count == 0 {
return nil, nil
}
// Preallocate expected length of uncached conversations.
conversations := make([]*gtsmodel.Conversation, 0, count)
conversations := make([]*gtsmodel.Conversation, 0, len(uncached))
// Perform database query scanning the remaining (uncached) IDs.
if err := c.db.NewSelect().
@ -267,27 +260,27 @@ func (c *conversationDB) LinkConversationToStatus(ctx context.Context, conversat
}
func (c *conversationDB) DeleteConversationByID(ctx context.Context, id string) error {
// Load conversation into cache before attempting a delete,
// as we need it cached in order to trigger the invalidate
// callback. This in turn invalidates others.
_, err := c.GetConversationByID(gtscontext.SetBarebones(ctx), id)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
// not an issue.
err = nil
}
// Gather necessary fields from
// deleted for cache invaliation.
var deleted gtsmodel.Conversation
deleted.ID = id
// Delete conversation from DB.
if _, err := c.db.NewDelete().
Model(&deleted).
Where("? = ?", bun.Ident("id"), id).
Returning("?", bun.Ident("account_id")).
Exec(ctx); err != nil &&
!errors.Is(err, db.ErrNoEntries) {
return err
}
// Drop this now-cached conversation on return after delete.
defer c.state.Caches.DB.Conversation.Invalidate("ID", id)
// Invalidate cached conversation by ID,
// manually invalidate hook in case not cached.
c.state.Caches.DB.Conversation.Invalidate("ID", id)
c.state.Caches.OnInvalidateConversation(&deleted)
// Finally delete conversation from DB.
_, err = c.db.NewDelete().
Model((*gtsmodel.Conversation)(nil)).
Where("? = ?", bun.Ident("id"), id).
Exec(ctx)
return err
return nil
}
func (c *conversationDB) DeleteConversationsByOwnerAccountID(ctx context.Context, accountID string) error {