forgejo/modules/queue/queue_redis.go
zeripath a82fd98d53
Pause queues (#15928)
* Start adding mechanism to return unhandled data

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Create pushback interface

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Add Pausable interface to WorkerPool and Manager

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Implement Pausable and PushBack for the bytefifos

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Implement Pausable and Pushback for ChannelQueues and ChannelUniqueQueues

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Wire in UI for pausing

Signed-off-by: Andrew Thornton <art27@cantab.net>

* add testcases and fix a few issues

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix build

Signed-off-by: Andrew Thornton <art27@cantab.net>

* prevent "race" in the test

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix jsoniter mismerge

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix conflicts

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix format

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Add warnings for no worker configurations and prevent data-loss with redis/levelqueue

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Use StopTimer

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2022-01-22 21:22:14 +00:00

138 lines
3.8 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package queue
import (
"context"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/nosql"
"github.com/go-redis/redis/v8"
)
// RedisQueueType is the type for redis queue
const RedisQueueType Type = "redis"
// RedisQueueConfiguration is the configuration for the redis queue
type RedisQueueConfiguration struct {
ByteFIFOQueueConfiguration
RedisByteFIFOConfiguration
}
// RedisQueue redis queue
type RedisQueue struct {
*ByteFIFOQueue
}
// NewRedisQueue creates single redis or cluster redis queue
func NewRedisQueue(handle HandlerFunc, cfg, exemplar interface{}) (Queue, error) {
configInterface, err := toConfig(RedisQueueConfiguration{}, cfg)
if err != nil {
return nil, err
}
config := configInterface.(RedisQueueConfiguration)
byteFIFO, err := NewRedisByteFIFO(config.RedisByteFIFOConfiguration)
if err != nil {
return nil, err
}
byteFIFOQueue, err := NewByteFIFOQueue(RedisQueueType, byteFIFO, handle, config.ByteFIFOQueueConfiguration, exemplar)
if err != nil {
return nil, err
}
queue := &RedisQueue{
ByteFIFOQueue: byteFIFOQueue,
}
queue.qid = GetManager().Add(queue, RedisQueueType, config, exemplar)
return queue, nil
}
type redisClient interface {
RPush(ctx context.Context, key string, args ...interface{}) *redis.IntCmd
LPush(ctx context.Context, key string, args ...interface{}) *redis.IntCmd
LPop(ctx context.Context, key string) *redis.StringCmd
LLen(ctx context.Context, key string) *redis.IntCmd
SAdd(ctx context.Context, key string, members ...interface{}) *redis.IntCmd
SRem(ctx context.Context, key string, members ...interface{}) *redis.IntCmd
SIsMember(ctx context.Context, key string, member interface{}) *redis.BoolCmd
Ping(ctx context.Context) *redis.StatusCmd
Close() error
}
var _ ByteFIFO = &RedisByteFIFO{}
// RedisByteFIFO represents a ByteFIFO formed from a redisClient
type RedisByteFIFO struct {
client redisClient
queueName string
}
// RedisByteFIFOConfiguration is the configuration for the RedisByteFIFO
type RedisByteFIFOConfiguration struct {
ConnectionString string
QueueName string
}
// NewRedisByteFIFO creates a ByteFIFO formed from a redisClient
func NewRedisByteFIFO(config RedisByteFIFOConfiguration) (*RedisByteFIFO, error) {
fifo := &RedisByteFIFO{
queueName: config.QueueName,
}
fifo.client = nosql.GetManager().GetRedisClient(config.ConnectionString)
if err := fifo.client.Ping(graceful.GetManager().ShutdownContext()).Err(); err != nil {
return nil, err
}
return fifo, nil
}
// PushFunc pushes data to the end of the fifo and calls the callback if it is added
func (fifo *RedisByteFIFO) PushFunc(ctx context.Context, data []byte, fn func() error) error {
if fn != nil {
if err := fn(); err != nil {
return err
}
}
return fifo.client.RPush(ctx, fifo.queueName, data).Err()
}
// PushBack pushes data to the top of the fifo
func (fifo *RedisByteFIFO) PushBack(ctx context.Context, data []byte) error {
return fifo.client.LPush(ctx, fifo.queueName, data).Err()
}
// Pop pops data from the start of the fifo
func (fifo *RedisByteFIFO) Pop(ctx context.Context) ([]byte, error) {
data, err := fifo.client.LPop(ctx, fifo.queueName).Bytes()
if err == nil || err == redis.Nil {
return data, nil
}
return data, err
}
// Close this fifo
func (fifo *RedisByteFIFO) Close() error {
return fifo.client.Close()
}
// Len returns the length of the fifo
func (fifo *RedisByteFIFO) Len(ctx context.Context) int64 {
val, err := fifo.client.LLen(ctx, fifo.queueName).Result()
if err != nil {
log.Error("Error whilst getting length of redis queue %s: Error: %v", fifo.queueName, err)
return -1
}
return val
}
func init() {
queuesMap[RedisQueueType] = NewRedisQueue
}