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https://github.com/hibiken/asynq.git
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Update CheckAndEnqueue method in RDB
This commit is contained in:
Ken Hibino
parent
f6d504939e
commit
650d7fdbe9
@ -419,48 +419,56 @@ func (r *RDB) Kill(msg *base.TaskMessage, errMsg string) error {
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msgToRemove, msgToAdd, now.Unix(), limit, maxDeadTasks, expireAt.Unix()).Err()
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}
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// CheckAndEnqueue checks for all scheduled/retry tasks and enqueues any tasks that
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// are ready to be processed.
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func (r *RDB) CheckAndEnqueue() (err error) {
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delayed := []string{base.ScheduledQueue, base.RetryQueue}
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for _, zset := range delayed {
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n := 1
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for n != 0 {
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n, err = r.forward(zset)
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if err != nil {
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return err
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}
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// CheckAndEnqueue checks for scheduled/retry tasks for the given queues
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//and enqueues any tasks that are ready to be processed.
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func (r *RDB) CheckAndEnqueue(qnames ...string) error {
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for _, qname := range qnames {
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if err := r.forwardAll(base.ScheduledKey(qname), base.QueueKey(qname)); err != nil {
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return err
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}
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if err := r.forwardAll(base.RetryKey(qname), base.QueueKey(qname)); err != nil {
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return err
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}
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}
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return nil
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}
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// KEYS[1] -> source queue (e.g. scheduled or retry queue)
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// KEYS[1] -> source queue (e.g. asynq:{<qname>:scheduled or asynq:{<qname>}:retry})
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// KEYS[2] -> destination queue (e.g. asynq:{<qname>})
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// ARGV[1] -> current unix time
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// ARGV[2] -> queue prefix
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// Note: Script moves tasks up to 100 at a time to keep the runtime of script short.
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var forwardCmd = redis.NewScript(`
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local msgs = redis.call("ZRANGEBYSCORE", KEYS[1], "-inf", ARGV[1], "LIMIT", 0, 100)
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for _, msg in ipairs(msgs) do
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local decoded = cjson.decode(msg)
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local qkey = ARGV[2] .. decoded["Queue"]
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redis.call("LPUSH", qkey, msg)
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redis.call("LPUSH", KEYS[2], msg)
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redis.call("ZREM", KEYS[1], msg)
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end
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return table.getn(msgs)`)
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// forward moves tasks with a score less than the current unix time
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// from the src zset. It returns the number of tasks moved.
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func (r *RDB) forward(src string) (int, error) {
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// from the src zset to the dst list. It returns the number of tasks moved.
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func (r *RDB) forward(src, dst string) (int, error) {
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now := float64(time.Now().Unix())
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res, err := forwardCmd.Run(r.client,
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[]string{src}, now, base.QueuePrefix).Result()
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res, err := forwardCmd.Run(r.client, []string{src, dst}, now).Result()
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if err != nil {
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return 0, err
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}
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return cast.ToInt(res), nil
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}
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// forwardAll moves tasks with a score less than the current unix time from the src zset,
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// until there's no more tasks.
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func (r *RDB) forwardAll(src, dst string) error {
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n := 1
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for n != 0 {
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n, err = r.forward(src, dst)
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if err != nil {
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return err
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}
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}
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return nil
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}
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// ListDeadlineExceeded returns a list of task messages that have exceeded the given deadline.
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func (r *RDB) ListDeadlineExceeded(deadline time.Time) ([]*base.TaskMessage, error) {
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var msgs []*base.TaskMessage
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@ -1161,82 +1161,120 @@ func TestCheckAndEnqueue(t *testing.T) {
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t1 := h.NewTaskMessage("send_email", nil)
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t2 := h.NewTaskMessage("generate_csv", nil)
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t3 := h.NewTaskMessage("gen_thumbnail", nil)
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t4 := h.NewTaskMessage("important_task", nil)
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t4.Queue = "critical"
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t5 := h.NewTaskMessage("minor_task", nil)
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t5.Queue = "low"
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t4 := h.NewTaskMessageWithQueue("important_task", nil, "critical")
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t5 := h.NewTaskMessageWithQueue("minor_task", nil, "low")
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secondAgo := time.Now().Add(-time.Second)
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hourFromNow := time.Now().Add(time.Hour)
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tests := []struct {
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scheduled []base.Z
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retry []base.Z
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scheduled map[string][]base.Z
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retry map[string][]base.Z
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qnames []string
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wantEnqueued map[string][]*base.TaskMessage
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wantScheduled []*base.TaskMessage
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wantRetry []*base.TaskMessage
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wantScheduled map[string][]*base.TaskMessage
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wantRetry map[string][]*base.TaskMessage
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}{
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{
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scheduled: []base.Z{
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{Message: t1, Score: secondAgo.Unix()},
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{Message: t2, Score: secondAgo.Unix()},
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scheduled: map[string][]base.Z{
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"default": {
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{Message: t1, Score: secondAgo.Unix()},
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{Message: t2, Score: secondAgo.Unix()},
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},
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},
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retry: []base.Z{
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{Message: t3, Score: secondAgo.Unix()}},
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retry: map[string][]base.Z{
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"default": {{Message: t3, Score: secondAgo.Unix()}},
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},
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qnames: []string{"default"},
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wantEnqueued: map[string][]*base.TaskMessage{
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"default": {t1, t2, t3},
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},
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wantScheduled: []*base.TaskMessage{},
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wantRetry: []*base.TaskMessage{},
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wantScheduled: map[string][]*base.TaskMessage{
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"default": {},
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},
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wantRetry: map[string][]*base.TaskMessage{
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"default": {},
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},
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},
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{
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scheduled: []base.Z{
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{Message: t1, Score: hourFromNow.Unix()},
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{Message: t2, Score: secondAgo.Unix()}},
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retry: []base.Z{
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{Message: t3, Score: secondAgo.Unix()}},
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scheduled: map[string][]base.Z{
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"default": {
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{Message: t1, Score: hourFromNow.Unix()},
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{Message: t2, Score: secondAgo.Unix()},
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},
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},
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retry: map[string][]base.Z{
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"default": {{Message: t3, Score: secondAgo.Unix()}},
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},
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qnames: []string{"default"},
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wantEnqueued: map[string][]*base.TaskMessage{
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"default": {t2, t3},
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},
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wantScheduled: []*base.TaskMessage{t1},
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wantRetry: []*base.TaskMessage{},
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wantScheduled: map[string][]*base.TaskMessage{
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"default": {t1},
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},
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wantRetry: map[string][]*base.TaskMessage{
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"default": {},
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},
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},
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{
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scheduled: []base.Z{
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{Message: t1, Score: hourFromNow.Unix()},
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{Message: t2, Score: hourFromNow.Unix()}},
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retry: []base.Z{
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{Message: t3, Score: hourFromNow.Unix()}},
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scheduled: map[string][]base.Z{
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"default": {
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{Message: t1, Score: hourFromNow.Unix()},
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{Message: t2, Score: hourFromNow.Unix()},
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},
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},
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retry: map[string][]base.Z{
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"default": {{Message: t3, Score: hourFromNow.Unix()}},
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},
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qnames: []string{"default"},
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wantEnqueued: map[string][]*base.TaskMessage{
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"default": {},
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},
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wantScheduled: []*base.TaskMessage{t1, t2},
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wantRetry: []*base.TaskMessage{t3},
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wantScheduled: map[string][]*base.TaskMessage{
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"default": {t1, t2},
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},
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wantRetry: map[string][]*base.TaskMessage{
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"default": {t3},
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},
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},
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{
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scheduled: []base.Z{
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{Message: t1, Score: secondAgo.Unix()},
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{Message: t4, Score: secondAgo.Unix()},
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scheduled: map[string][]base.Z{
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"default": {{Message: t1, Score: secondAgo.Unix()}},
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"critical": {{Message: t4, Score: secondAgo.Unix()}},
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"low": {},
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},
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retry: []base.Z{
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{Message: t5, Score: secondAgo.Unix()}},
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retry: map[string][]base.Z{
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"default": {},
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"critical": {},
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"low": {{Message: t5, Score: secondAgo.Unix()}},
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},
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qnames: []string{"default", "critical", "low"},
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wantEnqueued: map[string][]*base.TaskMessage{
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"default": {t1},
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"critical": {t4},
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"low": {t5},
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},
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wantScheduled: []*base.TaskMessage{},
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wantRetry: []*base.TaskMessage{},
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wantScheduled: map[string][]*base.TaskMessage{
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"default": {},
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"critical": {},
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"low": {},
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},
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wantRetry: map[string][]*base.TaskMessage{
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"default": {},
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"critical": {},
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"low": {},
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},
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},
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}
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for _, tc := range tests {
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h.FlushDB(t, r.client) // clean up db before each test case
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h.SeedScheduledQueue(t, r.client, tc.scheduled)
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h.SeedRetryQueue(t, r.client, tc.retry)
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h.SeedAllScheduledQueues(t, r.client, tc.scheduled)
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h.SeedAllRetryQueues(t, r.client, tc.retry)
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err := r.CheckAndEnqueue()
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err := r.CheckAndEnqueue(tc.qnames...)
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if err != nil {
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t.Errorf("(*RDB).CheckScheduled() = %v, want nil", err)
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t.Errorf("(*RDB).CheckScheduled(%v) = %v, want nil", tc.qnames, err)
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continue
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}
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@ -1246,15 +1284,17 @@ func TestCheckAndEnqueue(t *testing.T) {
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t.Errorf("mismatch found in %q; (-want, +got)\n%s", base.QueueKey(qname), diff)
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}
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}
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gotScheduled := h.GetScheduledMessages(t, r.client)
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if diff := cmp.Diff(tc.wantScheduled, gotScheduled, h.SortMsgOpt); diff != "" {
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t.Errorf("mismatch found in %q; (-want, +got)\n%s", base.ScheduledQueue, diff)
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for qname, want := range tc.wantScheduled {
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gotScheduled := h.GetScheduledMessages(t, r.client, qname)
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if diff := cmp.Diff(want, gotScheduled, h.SortMsgOpt); diff != "" {
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t.Errorf("mismatch found in %q; (-want, +got)\n%s", base.ScheduledKey(qname), diff)
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}
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}
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gotRetry := h.GetRetryMessages(t, r.client)
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if diff := cmp.Diff(tc.wantRetry, gotRetry, h.SortMsgOpt); diff != "" {
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t.Errorf("mismatch found in %q; (-want, +got)\n%s", base.RetryQueue, diff)
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for qname, want := range tc.wantRetry {
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gotRetry := h.GetRetryMessages(t, r.client, qname)
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if diff := cmp.Diff(want, gotRetry, h.SortMsgOpt); diff != "" {
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t.Errorf("mismatch found in %q; (-want, +got)\n%s", base.RetryKey(qname), diff)
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}
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}
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}
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}
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