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Agniva De SarkerandGitHub aeaac73a28 [AI assisted] MM-64298: Process setting status offline in batches (#31065)
When a user disconnects from the hub, we would spawn off a goroutine
which would make a cluster request, and then update the user status
as offline in the DB.

This was another case of unbounded concurrency where the number of
goroutines spawned was user controlled. Therefore, we would see
a clear spike in DB connections on master when a lot of users
would suddenly disconnect.

To fix this, we implement concurrency control in two areas:
1. In making the cluster request. We implement a counting semaphore
per-hub to avoid making unbounded cluster requests.
2. We use a buffered channel with a periodic flusher to process
status updates.

We also add a new store method to upsert multiple statuses
in a single query. The statusUpdateThreshold is set to 32, which means
no more than 32 rows will be upserted at one time, keeping the
SQL query load reasonable.

https://mattermost.atlassian.net/browse/MM-64298

```release-note
We improve DB connection spikes on user disconnect
by processing status updates in batches.
```
2025-06-17 09:20:34 +05:30

220 lines
4.7 KiB
Go

// Code generated by mockery v2.53.4. DO NOT EDIT.
// Regenerate this file using `make store-mocks`.
package mocks
import (
model "github.com/mattermost/mattermost/server/public/model"
mock "github.com/stretchr/testify/mock"
)
// StatusStore is an autogenerated mock type for the StatusStore type
type StatusStore struct {
mock.Mock
}
// Get provides a mock function with given fields: userID
func (_m *StatusStore) Get(userID string) (*model.Status, error) {
ret := _m.Called(userID)
if len(ret) == 0 {
panic("no return value specified for Get")
}
var r0 *model.Status
var r1 error
if rf, ok := ret.Get(0).(func(string) (*model.Status, error)); ok {
return rf(userID)
}
if rf, ok := ret.Get(0).(func(string) *model.Status); ok {
r0 = rf(userID)
} else {
if ret.Get(0) != nil {
r0 = ret.Get(0).(*model.Status)
}
}
if rf, ok := ret.Get(1).(func(string) error); ok {
r1 = rf(userID)
} else {
r1 = ret.Error(1)
}
return r0, r1
}
// GetByIds provides a mock function with given fields: userIds
func (_m *StatusStore) GetByIds(userIds []string) ([]*model.Status, error) {
ret := _m.Called(userIds)
if len(ret) == 0 {
panic("no return value specified for GetByIds")
}
var r0 []*model.Status
var r1 error
if rf, ok := ret.Get(0).(func([]string) ([]*model.Status, error)); ok {
return rf(userIds)
}
if rf, ok := ret.Get(0).(func([]string) []*model.Status); ok {
r0 = rf(userIds)
} else {
if ret.Get(0) != nil {
r0 = ret.Get(0).([]*model.Status)
}
}
if rf, ok := ret.Get(1).(func([]string) error); ok {
r1 = rf(userIds)
} else {
r1 = ret.Error(1)
}
return r0, r1
}
// GetTotalActiveUsersCount provides a mock function with no fields
func (_m *StatusStore) GetTotalActiveUsersCount() (int64, error) {
ret := _m.Called()
if len(ret) == 0 {
panic("no return value specified for GetTotalActiveUsersCount")
}
var r0 int64
var r1 error
if rf, ok := ret.Get(0).(func() (int64, error)); ok {
return rf()
}
if rf, ok := ret.Get(0).(func() int64); ok {
r0 = rf()
} else {
r0 = ret.Get(0).(int64)
}
if rf, ok := ret.Get(1).(func() error); ok {
r1 = rf()
} else {
r1 = ret.Error(1)
}
return r0, r1
}
// ResetAll provides a mock function with no fields
func (_m *StatusStore) ResetAll() error {
ret := _m.Called()
if len(ret) == 0 {
panic("no return value specified for ResetAll")
}
var r0 error
if rf, ok := ret.Get(0).(func() error); ok {
r0 = rf()
} else {
r0 = ret.Error(0)
}
return r0
}
// SaveOrUpdate provides a mock function with given fields: status
func (_m *StatusStore) SaveOrUpdate(status *model.Status) error {
ret := _m.Called(status)
if len(ret) == 0 {
panic("no return value specified for SaveOrUpdate")
}
var r0 error
if rf, ok := ret.Get(0).(func(*model.Status) error); ok {
r0 = rf(status)
} else {
r0 = ret.Error(0)
}
return r0
}
// SaveOrUpdateMany provides a mock function with given fields: statuses
func (_m *StatusStore) SaveOrUpdateMany(statuses map[string]*model.Status) error {
ret := _m.Called(statuses)
if len(ret) == 0 {
panic("no return value specified for SaveOrUpdateMany")
}
var r0 error
if rf, ok := ret.Get(0).(func(map[string]*model.Status) error); ok {
r0 = rf(statuses)
} else {
r0 = ret.Error(0)
}
return r0
}
// UpdateExpiredDNDStatuses provides a mock function with no fields
func (_m *StatusStore) UpdateExpiredDNDStatuses() ([]*model.Status, error) {
ret := _m.Called()
if len(ret) == 0 {
panic("no return value specified for UpdateExpiredDNDStatuses")
}
var r0 []*model.Status
var r1 error
if rf, ok := ret.Get(0).(func() ([]*model.Status, error)); ok {
return rf()
}
if rf, ok := ret.Get(0).(func() []*model.Status); ok {
r0 = rf()
} else {
if ret.Get(0) != nil {
r0 = ret.Get(0).([]*model.Status)
}
}
if rf, ok := ret.Get(1).(func() error); ok {
r1 = rf()
} else {
r1 = ret.Error(1)
}
return r0, r1
}
// UpdateLastActivityAt provides a mock function with given fields: userID, lastActivityAt
func (_m *StatusStore) UpdateLastActivityAt(userID string, lastActivityAt int64) error {
ret := _m.Called(userID, lastActivityAt)
if len(ret) == 0 {
panic("no return value specified for UpdateLastActivityAt")
}
var r0 error
if rf, ok := ret.Get(0).(func(string, int64) error); ok {
r0 = rf(userID, lastActivityAt)
} else {
r0 = ret.Error(0)
}
return r0
}
// NewStatusStore creates a new instance of StatusStore. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
// The first argument is typically a *testing.T value.
func NewStatusStore(t interface {
mock.TestingT
Cleanup(func())
}) *StatusStore {
mock := &StatusStore{}
mock.Mock.Test(t)
t.Cleanup(func() { mock.AssertExpectations(t) })
return mock
}