gotosocial/internal/db/instance.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

58 lines
2.7 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 db
import (
"context"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
// Instance contains functions for instance-level actions (counting instance users etc.).
type Instance interface {
// CountInstanceUsers returns the number of known accounts registered with the given domain.
CountInstanceUsers(ctx context.Context, domain string) (int, error)
// CountInstanceStatuses returns the number of known statuses posted from the given domain.
CountInstanceStatuses(ctx context.Context, domain string) (int, error)
// CountInstanceDomains returns the number of known instances known that the given domain federates with.
CountInstanceDomains(ctx context.Context, domain string) (int, error)
// GetInstance returns the instance entry for the given domain, if it exists.
GetInstance(ctx context.Context, domain string) (*gtsmodel.Instance, error)
// GetInstanceByID returns the instance entry corresponding to the given id, if it exists.
GetInstanceByID(ctx context.Context, id string) (*gtsmodel.Instance, error)
// PutInstance inserts the given instance into the database.
PutInstance(ctx context.Context, instance *gtsmodel.Instance) error
// UpdateInstance updates the given instance entry.
UpdateInstance(ctx context.Context, instance *gtsmodel.Instance, columns ...string) error
// GetInstanceAccounts returns a slice of accounts from the given instance, arranged by ID.
GetInstanceAccounts(ctx context.Context, domain string, maxID string, limit int) ([]*gtsmodel.Account, error)
// GetInstancePeers returns a slice of instances that the host instance knows about.
GetInstancePeers(ctx context.Context, includeSuspended bool) ([]*gtsmodel.Instance, error)
// GetInstanceModeratorAddresses returns a slice of email addresses belonging to active
// (as in, not suspended) moderators + admins on this instance.
GetInstanceModeratorAddresses(ctx context.Context) ([]string, error)
}