gotosocial/internal/db/bundb/statusfave.go
kim 5f3e095717
[performance] retry db queries on busy errors (#2025)
* catch SQLITE_BUSY errors, wrap bun.DB to use our own busy retrier, remove unnecessary db.Error type

Signed-off-by: kim <grufwub@gmail.com>

* remove dead code

Signed-off-by: kim <grufwub@gmail.com>

* remove more dead code, add missing error arguments

Signed-off-by: kim <grufwub@gmail.com>

* update sqlite to use maxOpenConns()

Signed-off-by: kim <grufwub@gmail.com>

* add uncommitted changes

Signed-off-by: kim <grufwub@gmail.com>

* use direct calls-through for the ConnIface to make sure we don't double query hook

Signed-off-by: kim <grufwub@gmail.com>

* expose underlying bun.DB better

Signed-off-by: kim <grufwub@gmail.com>

* retry on the correct busy error

Signed-off-by: kim <grufwub@gmail.com>

* use longer possible maxRetries for db retry-backoff

Signed-off-by: kim <grufwub@gmail.com>

* remove the note regarding max-open-conns only applying to postgres

Signed-off-by: kim <grufwub@gmail.com>

* improved code commenting

Signed-off-by: kim <grufwub@gmail.com>

* remove unnecessary infof call (just use info)

Signed-off-by: kim <grufwub@gmail.com>

* rename DBConn to WrappedDB to better follow sql package name conventions

Signed-off-by: kim <grufwub@gmail.com>

* update test error string checks

Signed-off-by: kim <grufwub@gmail.com>

* shush linter

Signed-off-by: kim <grufwub@gmail.com>

* update backoff logic to be more transparent

Signed-off-by: kim <grufwub@gmail.com>

---------

Signed-off-by: kim <grufwub@gmail.com>
2023-07-25 10:34:05 +02:00

310 lines
8.3 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package bundb
import (
"context"
"errors"
"fmt"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/uptrace/bun"
)
type statusFaveDB struct {
db *WrappedDB
state *state.State
}
func (s *statusFaveDB) GetStatusFave(ctx context.Context, accountID string, statusID string) (*gtsmodel.StatusFave, error) {
return s.getStatusFave(
ctx,
"AccountID.StatusID",
func(fave *gtsmodel.StatusFave) error {
return s.db.
NewSelect().
Model(fave).
Where("? = ?", bun.Ident("account_id"), accountID).
Where("? = ?", bun.Ident("status_id"), statusID).
Scan(ctx)
},
accountID,
statusID,
)
}
func (s *statusFaveDB) GetStatusFaveByID(ctx context.Context, id string) (*gtsmodel.StatusFave, error) {
return s.getStatusFave(
ctx,
"ID",
func(fave *gtsmodel.StatusFave) error {
return s.db.
NewSelect().
Model(fave).
Where("? = ?", bun.Ident("id"), id).
Scan(ctx)
},
id,
)
}
func (s *statusFaveDB) getStatusFave(ctx context.Context, lookup string, dbQuery func(*gtsmodel.StatusFave) error, keyParts ...any) (*gtsmodel.StatusFave, error) {
// Fetch status fave from database cache with loader callback
fave, err := s.state.Caches.GTS.StatusFave().Load(lookup, func() (*gtsmodel.StatusFave, error) {
var fave gtsmodel.StatusFave
// Not cached! Perform database query.
if err := dbQuery(&fave); err != nil {
return nil, s.db.ProcessError(err)
}
return &fave, nil
}, keyParts...)
if err != nil {
return nil, err
}
if gtscontext.Barebones(ctx) {
// no need to fully populate.
return fave, nil
}
// Fetch the status fave author account.
fave.Account, err = s.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
fave.AccountID,
)
if err != nil {
return nil, fmt.Errorf("error getting status fave account %q: %w", fave.AccountID, err)
}
// Fetch the status fave target account.
fave.TargetAccount, err = s.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
fave.TargetAccountID,
)
if err != nil {
return nil, fmt.Errorf("error getting status fave target account %q: %w", fave.TargetAccountID, err)
}
// Fetch the status fave target status.
fave.Status, err = s.state.DB.GetStatusByID(
gtscontext.SetBarebones(ctx),
fave.StatusID,
)
if err != nil {
return nil, fmt.Errorf("error getting status fave status %q: %w", fave.StatusID, err)
}
return fave, nil
}
func (s *statusFaveDB) GetStatusFavesForStatus(ctx context.Context, statusID string) ([]*gtsmodel.StatusFave, error) {
ids := []string{}
if err := s.db.
NewSelect().
Table("status_faves").
Column("id").
Where("? = ?", bun.Ident("status_id"), statusID).
Scan(ctx, &ids); err != nil {
return nil, s.db.ProcessError(err)
}
faves := make([]*gtsmodel.StatusFave, 0, len(ids))
for _, id := range ids {
fave, err := s.GetStatusFaveByID(ctx, id)
if err != nil {
log.Errorf(ctx, "error getting status fave %q: %v", id, err)
continue
}
faves = append(faves, fave)
}
return faves, nil
}
func (s *statusFaveDB) PopulateStatusFave(ctx context.Context, statusFave *gtsmodel.StatusFave) error {
var (
err error
errs = make(gtserror.MultiError, 0, 3)
)
if statusFave.Account == nil {
// StatusFave author is not set, fetch from database.
statusFave.Account, err = s.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
statusFave.AccountID,
)
if err != nil {
errs.Append(fmt.Errorf("error populating status fave author: %w", err))
}
}
if statusFave.TargetAccount == nil {
// StatusFave target account is not set, fetch from database.
statusFave.TargetAccount, err = s.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
statusFave.TargetAccountID,
)
if err != nil {
errs.Append(fmt.Errorf("error populating status fave target account: %w", err))
}
}
if statusFave.Status == nil {
// StatusFave status is not set, fetch from database.
statusFave.Status, err = s.state.DB.GetStatusByID(
gtscontext.SetBarebones(ctx),
statusFave.StatusID,
)
if err != nil {
errs.Append(fmt.Errorf("error populating status fave status: %w", err))
}
}
return errs.Combine()
}
func (s *statusFaveDB) PutStatusFave(ctx context.Context, fave *gtsmodel.StatusFave) error {
return s.state.Caches.GTS.StatusFave().Store(fave, func() error {
_, err := s.db.
NewInsert().
Model(fave).
Exec(ctx)
return s.db.ProcessError(err)
})
}
func (s *statusFaveDB) DeleteStatusFaveByID(ctx context.Context, id string) error {
defer s.state.Caches.GTS.StatusFave().Invalidate("ID", id)
// Load fave into cache before attempting a delete,
// as we need it cached in order to trigger the invalidate
// callback. This in turn invalidates others.
_, err := s.GetStatusFaveByID(gtscontext.SetBarebones(ctx), id)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
// not an issue.
err = nil
}
return err
}
// Finally delete fave from DB.
_, err = s.db.NewDelete().
Table("status_faves").
Where("? = ?", bun.Ident("id"), id).
Exec(ctx)
return s.db.ProcessError(err)
}
func (s *statusFaveDB) DeleteStatusFaves(ctx context.Context, targetAccountID string, originAccountID string) error {
if targetAccountID == "" && originAccountID == "" {
return errors.New("DeleteStatusFaves: one of targetAccountID or originAccountID must be set")
}
var faveIDs []string
q := s.db.
NewSelect().
Column("id").
Table("status_faves")
if targetAccountID != "" {
q = q.Where("? = ?", bun.Ident("target_account_id"), targetAccountID)
}
if originAccountID != "" {
q = q.Where("? = ?", bun.Ident("account_id"), originAccountID)
}
if _, err := q.Exec(ctx, &faveIDs); err != nil {
return s.db.ProcessError(err)
}
defer func() {
// Invalidate all IDs on return.
for _, id := range faveIDs {
s.state.Caches.GTS.StatusFave().Invalidate("ID", id)
}
}()
// Load all faves into cache, this *really* isn't great
// but it is the only way we can ensure we invalidate all
// related caches correctly (e.g. visibility).
for _, id := range faveIDs {
_, err := s.GetStatusFaveByID(ctx, id)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return err
}
}
// Finally delete all from DB.
_, err := s.db.NewDelete().
Table("status_faves").
Where("? IN (?)", bun.Ident("id"), bun.In(faveIDs)).
Exec(ctx)
return s.db.ProcessError(err)
}
func (s *statusFaveDB) DeleteStatusFavesForStatus(ctx context.Context, statusID string) error {
// Capture fave IDs in a RETURNING statement.
var faveIDs []string
q := s.db.
NewSelect().
Column("id").
Table("status_faves").
Where("? = ?", bun.Ident("status_id"), statusID)
if _, err := q.Exec(ctx, &faveIDs); err != nil {
return s.db.ProcessError(err)
}
defer func() {
// Invalidate all IDs on return.
for _, id := range faveIDs {
s.state.Caches.GTS.StatusFave().Invalidate("ID", id)
}
}()
// Load all faves into cache, this *really* isn't great
// but it is the only way we can ensure we invalidate all
// related caches correctly (e.g. visibility).
for _, id := range faveIDs {
_, err := s.GetStatusFaveByID(ctx, id)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return err
}
}
// Finally delete all from DB.
_, err := s.db.NewDelete().
Table("status_faves").
Where("? IN (?)", bun.Ident("id"), bun.In(faveIDs)).
Exec(ctx)
return s.db.ProcessError(err)
}