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path: root/plugins/jobs/drivers/beanstalk/consumer.go
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Diffstat (limited to 'plugins/jobs/drivers/beanstalk/consumer.go')
-rw-r--r--plugins/jobs/drivers/beanstalk/consumer.go213
1 files changed, 185 insertions, 28 deletions
diff --git a/plugins/jobs/drivers/beanstalk/consumer.go b/plugins/jobs/drivers/beanstalk/consumer.go
index e9bfafdd..27d453f4 100644
--- a/plugins/jobs/drivers/beanstalk/consumer.go
+++ b/plugins/jobs/drivers/beanstalk/consumer.go
@@ -1,7 +1,10 @@
package beanstalk
import (
+ "bytes"
"strings"
+ "sync"
+ "sync/atomic"
"time"
"github.com/beanstalkd/go-beanstalk"
@@ -15,15 +18,29 @@ import (
)
type JobConsumer struct {
+ sync.Mutex
log logger.Logger
eh events.Handler
pq priorityqueue.Queue
+ pipeline atomic.Value
+ listeners uint32
+
// beanstalk
- conn *beanstalk.Conn
- tout time.Duration
+ addr string
+ network string
+ conn *beanstalk.Conn
+ tube *beanstalk.Tube
+ tubeSet *beanstalk.TubeSet
+ reserveTimeout time.Duration
+ reconnectCh chan struct{}
+ tout time.Duration
// tube name
- tName string
+ tName string
+ tubePriority uint32
+ priority int64
+
+ stopCh chan struct{}
}
func NewBeanstalkConsumer(configKey string, log logger.Logger, cfg config.Configurer, e events.Handler, pq priorityqueue.Queue) (*JobConsumer, error) {
@@ -47,14 +64,6 @@ func NewBeanstalkConsumer(configKey string, log logger.Logger, cfg config.Config
globalCfg.InitDefault()
- // initialize job consumer
- jc := &JobConsumer{
- pq: pq,
- log: log,
- eh: e,
- tout: globalCfg.Timeout,
- }
-
// PARSE CONFIGURATION -------
dsn := strings.Split(globalCfg.Addr, "://")
@@ -62,11 +71,32 @@ func NewBeanstalkConsumer(configKey string, log logger.Logger, cfg config.Config
return nil, errors.E(op, errors.Errorf("invalid socket DSN (tcp://localhost:11300, unix://beanstalk.sock), provided: %s", globalCfg.Addr))
}
- jc.conn, err = beanstalk.DialTimeout(dsn[0], dsn[1], jc.tout)
+ // initialize job consumer
+ jc := &JobConsumer{
+ pq: pq,
+ log: log,
+ eh: e,
+ network: dsn[0],
+ addr: dsn[1],
+ tout: globalCfg.Timeout,
+ reserveTimeout: pipeCfg.ReserveTimeout,
+ tName: pipeCfg.Tube,
+ tubePriority: pipeCfg.TubePriority,
+ priority: pipeCfg.PipePriority,
+
+ // buffered with two because jobs root plugin can call Stop at the same time as Pause
+ stopCh: make(chan struct{}, 2),
+ reconnectCh: make(chan struct{}),
+ }
+
+ jc.conn, err = beanstalk.DialTimeout(jc.network, jc.addr, jc.tout)
if err != nil {
return nil, err
}
+ jc.tube = beanstalk.NewTube(jc.conn, jc.tName)
+ jc.tubeSet = beanstalk.NewTubeSet(jc.conn, jc.tName)
+
// start redial listener
go jc.redial()
@@ -77,7 +107,8 @@ func FromPipeline(pipe *pipeline.Pipeline, log logger.Logger, cfg config.Configu
const op = errors.Op("new_beanstalk_consumer")
const (
- tube string = "tube"
+ tube string = "tube"
+ reserveTimeout string = "reserve_timeout"
)
// PARSE CONFIGURATION -------
@@ -92,11 +123,14 @@ func FromPipeline(pipe *pipeline.Pipeline, log logger.Logger, cfg config.Configu
// initialize job consumer
jc := &JobConsumer{
- pq: pq,
- log: log,
- eh: e,
- tout: globalCfg.Timeout,
- tName: pipe.String(tube, ""),
+ pq: pq,
+ log: log,
+ eh: e,
+ tout: globalCfg.Timeout,
+ tName: pipe.String(tube, ""),
+ reserveTimeout: time.Second * time.Duration(pipe.Int(reserveTimeout, 5)),
+ stopCh: make(chan struct{}),
+ reconnectCh: make(chan struct{}),
}
// PARSE CONFIGURATION -------
@@ -116,26 +150,149 @@ func FromPipeline(pipe *pipeline.Pipeline, log logger.Logger, cfg config.Configu
return jc, nil
}
-func (j *JobConsumer) Push(job *job.Job) error {
- panic("implement me")
+func (j *JobConsumer) Push(jb *job.Job) error {
+ const op = errors.Op("beanstalk_push")
+ // check if the pipeline registered
+
+ // load atomic value
+ pipe := j.pipeline.Load().(*pipeline.Pipeline)
+ if pipe.Name() != jb.Options.Pipeline {
+ return errors.E(op, errors.Errorf("no such pipeline: %s, actual: %s", jb.Options.Pipeline, pipe.Name()))
+ }
+
+ // reconnect protection
+ j.Lock()
+ defer j.Unlock()
+
+ item := fromJob(jb)
+
+ bb := new(bytes.Buffer)
+ bb.Grow(64)
+ err := item.pack(bb)
+ if err != nil {
+ return errors.E(op, err)
+ }
+
+ // https://github.com/beanstalkd/beanstalkd/blob/master/doc/protocol.txt#L458
+ // <pri> is an integer < 2**32. Jobs with smaller priority values will be
+ // scheduled before jobs with larger priorities. The most urgent priority is 0;
+ // the least urgent priority is 4,294,967,295.
+ //
+ // <delay> is an integer number of seconds to wait before putting the job in
+ // the ready queue. The job will be in the "delayed" state during this time.
+ // Maximum delay is 2**32-1.
+ //
+ // <ttr> -- time to run -- is an integer number of seconds to allow a worker
+ // to run this job. This time is counted from the moment a worker reserves
+ // this job. If the worker does not delete, release, or bury the job within
+ // <ttr> seconds, the job will time out and the server will release the job.
+ // The minimum ttr is 1. If the client sends 0, the server will silently
+ // increase the ttr to 1. Maximum ttr is 2**32-1.
+ id, err := j.tube.Put(bb.Bytes(), 0, item.Options.DelayDuration(), item.Options.TimeoutDuration())
+ if err != nil {
+ errD := j.conn.Delete(id)
+ if errD != nil {
+ return errors.E(op, errors.Errorf("%s:%s", err.Error(), errD.Error()))
+ }
+ return errors.E(op, err)
+ }
+
+ return nil
}
func (j *JobConsumer) Register(pipeline *pipeline.Pipeline) error {
- panic("implement me")
+ // register the pipeline
+ j.pipeline.Store(pipeline)
+ return nil
}
-func (j *JobConsumer) Run(pipeline *pipeline.Pipeline) error {
- panic("implement me")
+func (j *JobConsumer) Run(p *pipeline.Pipeline) error {
+ const op = errors.Op("beanstalk_run")
+ // check if the pipeline registered
+
+ // load atomic value
+ pipe := j.pipeline.Load().(*pipeline.Pipeline)
+ if pipe.Name() != p.Name() {
+ return errors.E(op, errors.Errorf("no such pipeline: %s, actual: %s", p.Name(), pipe.Name()))
+ }
+
+ atomic.AddUint32(&j.listeners, 1)
+
+ j.Lock()
+ defer j.Unlock()
+
+ go j.listen()
+
+ return nil
}
func (j *JobConsumer) Stop() error {
- panic("implement me")
+ pipe := j.pipeline.Load().(*pipeline.Pipeline)
+
+ j.stopCh <- struct{}{}
+
+ j.eh.Push(events.JobEvent{
+ Event: events.EventPipeStopped,
+ Driver: pipe.Driver(),
+ Pipeline: pipe.Name(),
+ Start: time.Now(),
+ })
+
+ return nil
}
-func (j *JobConsumer) Pause(pipeline string) {
- panic("implement me")
+func (j *JobConsumer) Pause(p string) {
+ // load atomic value
+ pipe := j.pipeline.Load().(*pipeline.Pipeline)
+ if pipe.Name() != p {
+ j.log.Error("no such pipeline", "requested", p, "actual", pipe.Name())
+ return
+ }
+
+ l := atomic.LoadUint32(&j.listeners)
+ // no active listeners
+ if l == 0 {
+ j.log.Warn("no active listeners, nothing to pause")
+ return
+ }
+
+ atomic.AddUint32(&j.listeners, ^uint32(0))
+
+ j.stopCh <- struct{}{}
+
+ j.eh.Push(events.JobEvent{
+ Event: events.EventPipeStopped,
+ Driver: pipe.Driver(),
+ Pipeline: pipe.Name(),
+ Start: time.Now(),
+ })
}
-func (j *JobConsumer) Resume(pipeline string) {
- panic("implement me")
+func (j *JobConsumer) Resume(p string) {
+ // load atomic value
+ pipe := j.pipeline.Load().(*pipeline.Pipeline)
+ if pipe.Name() != p {
+ j.log.Error("no such pipeline", "requested", p, "actual", pipe.Name())
+ return
+ }
+
+ l := atomic.LoadUint32(&j.listeners)
+ // no active listeners
+ if l == 1 {
+ j.log.Warn("sqs listener already in the active state")
+ return
+ }
+
+ // start listener
+ go j.listen()
+
+ // increase num of listeners
+ atomic.AddUint32(&j.listeners, 1)
+
+ j.eh.Push(events.JobEvent{
+ Event: events.EventPipeActive,
+ Driver: pipe.Driver(),
+ Pipeline: pipe.Name(),
+ Start: time.Now(),
+ })
}
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