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License: MIT License
Simple job queues for Go backed by Redis
License: MIT License
It needs fine tuning from the README
Hello ๐,
It would be great it we could by-pass the serializer so we can unmarshal (manually) a specific struct
, and not a generic map
.
Or, provide the struct
as payload so the serializer could use this instance.
For simplicity, I would prefer the second option.
For flexibility, the first one: we could receive a payload that is schema-less (a webhook for example) and depending of its type (defined by a keyword or composite information), unmarshal a specific struct
.
If you have further question, don't hesitate to ask.
Cheers,
I am using the Publish method like this
task, err := c.engine.Queue(queueName).Publish(context.Background(), entry)
if err != nil {
c.errs <- err
return
}
but eventually, I always encounter this error
panic: runtime error: index out of range [-2]
goroutine 9634 [running]:
math/rand.(*rngSource).Uint64(...)
/usr/local/go/src/math/rand/rng.go:249
math/rand.(*rngSource).Int63(0xc0000af500, 0x290b9eb2ba0ec300)
/usr/local/go/src/math/rand/rng.go:234 +0x93
math/rand.(*Rand).Int63(...)
/usr/local/go/src/math/rand/rand.go:85
math/rand.read(0xc0030a3116, 0xa, 0xa, 0xc0058956b0, 0xc000098d70, 0xc000098d78, 0x10, 0xc0030a3110, 0xc000161400)
/usr/local/go/src/math/rand/rand.go:272 +0x64
math/rand.(*Rand).Read(0xc000098d50, 0xc0030a3116, 0xa, 0xa, 0xc005895720, 0x100e258, 0x10)
/usr/local/go/src/math/rand/rand.go:264 +0x106
io.ReadAtLeast(0x143b6a0, 0xc000098d50, 0xc0030a3116, 0xa, 0xa, 0xa, 0x16b8620, 0x4b8f430, 0xed5645a4e)
/usr/local/go/src/io/io.go:310 +0x87
io.ReadFull(...)
/usr/local/go/src/io/io.go:329
github.com/oklog/ulid.New(0x16e7dd3e8ff, 0x143b6a0, 0xc000098d50, 0xc002ce5a40, 0xc00564c440, 0xc0030a30f0, 0xc0030a30e0)
/Users/tsatke/go/pkg/mod/github.com/oklog/[email protected]/ulid.go:96 +0xc9
github.com/oklog/ulid.MustNew(...)
/Users/tsatke/go/pkg/mod/github.com/oklog/[email protected]/ulid.go:105
github.com/thoas/bokchoy.id(0xc002ce5a40, 0x1000000010d75c7)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/utils.go:16 +0x53
github.com/thoas/bokchoy.NewTask(0x13c59ad, 0xd, 0x13596a0, 0xc0030d86c0, 0x0, 0x0, 0x0, 0x10)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/task.go:51 +0x6d
github.com/thoas/bokchoy.(*Queue).NewTask(0xc00012e000, 0x13596a0, 0xc0030d86c0, 0x0, 0x0, 0x0, 0x1)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/queue.go:427 +0xd3
github.com/thoas/bokchoy.(*Queue).Publish(0xc00012e000, 0x14411c0, 0xc00001a078, 0x13596a0, 0xc0030d86c0, 0x0, 0x0, 0x0, 0xc004c83f40, 0x0, ...)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/queue.go:445 +0x67
github.com/TimSatke/crawler/crawler.(*Crawler).Enqueue(0xc000098f30, 0xc002cecd80, 0x29)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:123 +0xd2
github.com/TimSatke/crawler/crawler.(*Crawler).processReference(0xc000098f30, 0xc0030ca680)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:235 +0x49
github.com/TimSatke/crawler/crawler.(*Crawler).processAnchorNode(0xc000098f30, 0xc003012c80, 0xc002072e70)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:230 +0x13b
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc002072e70)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:199 +0x9e
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc002072e00)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc002059030)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc001c16700)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc001c16690)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc001c16000)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc001c15a40)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc001c157a0)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc0065abea0)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTMLInternal(0xc000098f30, 0xc003012c80, 0xc0065abdc0)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:202 +0x69
github.com/TimSatke/crawler/crawler.(*Crawler).processHTML(0xc000098f30, 0xc003012c80, 0x1b5fdd8, 0xc003e7ae70, 0xc003e7ae70, 0x0)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:193 +0x8f
github.com/TimSatke/crawler/crawler.(*Crawler).process(0xc000098f30, 0xc007073080, 0x22, 0x0, 0x0)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:184 +0x29d
github.com/TimSatke/crawler/crawler.(*Crawler).Worker(0xc000098f30, 0xc0005ebc80, 0x20, 0x20)
/Users/tsatke/Desktop/crawler/crawler/crawler.go:149 +0xb8
github.com/thoas/bokchoy.HandlerFunc.Handle(0xc000124040, 0xc0005ebc80, 0x100d9e6, 0xc0001f7e68)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/handler.go:8 +0x30
github.com/thoas/bokchoy.(*consumer).handleTask.func1.2(0xc0005ebc80, 0xc0001dc001, 0xc005227340)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/consumer.go:73 +0x64
github.com/thoas/bokchoy.HandlerFunc.Handle(0xc005227320, 0xc0005ebc80, 0xc0001f7ec0, 0x12df49e)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/handler.go:8 +0x30
github.com/thoas/bokchoy.(*consumer).handleRequest.func1(0xc0005ebc80, 0xc005227340, 0xc005227320)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/consumer.go:162 +0x5c
github.com/thoas/bokchoy.HandlerFunc.Handle(0xc005227340, 0xc0005ebc80, 0x1, 0x143bf60)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/handler.go:8 +0x30
github.com/thoas/bokchoy.(*consumer).handleTask.func1(0xc000b71c80, 0xc002484900, 0xc000130120, 0xc0005ebc80)
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/consumer.go:74 +0x1b8
created by github.com/thoas/bokchoy.(*consumer).handleTask
/Users/tsatke/go/pkg/mod/github.com/thoas/[email protected]/consumer.go:56 +0x13c
Why is that?
Noticed some issues with the queue processing new jobs if redis connection drops for a bit and then comes back.
Timeline is something like:
Any idea what's going wrong here? Any ideas for a different config? At the moment I'm just providing the credentials and the redis URL.
I have been implementing bokchoy actively to replace our existing queue library. There is an issue with tasks being retried and when there are connectivity issues.
For example, I create a task which always fails and being retried every 5s.
Then I have the network connectivity issues to Redis and do hard-stop of my application.
When a task is retried there is a key in Redis delay
containing task ID:
Type: Sorted Set (1 Members)
# | Score | Value
-- | -- | --
0 | 1566470199 | 01DJWE7F5WWCQ16BMYGHSK4CAX
However, if it happens to be a coincidence of redis connectivity issues and I stop an app, delay
key is removed and the task remains always in queue with Failed status, MaxRetries >=0, some ETA.
To fix this we need whether to do some "transaction" on delay
key so it is never lost or to create a cleanup goroutine to garbage collect Failed tasks having MaxRetries >=0 and re-queue them.
Also it would be great to have a method to tell a task to be re-processed if "max_retries" field is removed (no more attempts left) or some other case like above. I know I can modify MaxRetries, ETA etc. but need to put a task id into delay
set anyway.
Thanks!
Hello!
Thanks a lot for your work. I have a question, I would like to delay the execution of a task when something inside the handlers fails.
Let's assume I am calling an API that rates limit requests for a day when 1000 calls are reached.
When I catch a failed request to that API caused by a rate-limiting I would like to re-enqueue the task with a couple of hours delay.
I saw that task as TTL
I should for sure increase that, but what else can I do to delay the next execution? I am also not sure if the modification to a task inside a handler gets stored or not.
Thanks!
Everything works fine locally with the single/client mode.
But when I run the code on production with cluster mode, the consumer never receives anything from the queue.
Intermediately seeing this error: NOSCRIPT No matching script. Please use EVAL.
Is there a recovery?
Hi
How can I process tasks in queues created after Engine started? All this tasks have Status "waiting" and Queue "start" method is unexported
I'm running a processor using Run(ctx). Everything works great until I restart redis server. It's not uncommon for our systems to have hiccups, so I would hope that the server picks up where it left off. It simply stops working and I don't see anything unless I turn on development logging. Then I see the following:
ERROR logging/logging.go:123 Received error when retrieving delayed tasks {"error": "unable to ZPOPBYSCORE PrefixQueue:delay: NOSCRIPT No matching script. Please use EVAL.", "errorVerbose": "NOSCRIPT No matching script. Please use EVAL.\nunable to ZPOPBYSCORE PrefixQueue:delay\ngithub.com/thoas/bokchoy.(*redisBroker).Consume\n\t/userdir/go/pkg/mod/github.com/thoas/[email protected]/broker_redis.go:198\ngithub.com/thoas/bokchoy.(*Queue).consume\n\t/userdir/go/pkg/mod/github.com/thoas/[email protected]/queue.go:308\ngithub.com/thoas/bokchoy.(*Queue).ConsumeDelayed\n\t/userdir/go/pkg/mod/github.com/thoas/[email protected]/queue.go:299\ngithub.com/thoas/bokchoy.(*Queue).consumeDelayedTasks.func1\n\t/userdir/go/pkg/mod/github.com/thoas/[email protected]/queue.go:150\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1337"}
github.com/thoas/bokchoy/logging.wrapLogger.Error
/userdir/go/pkg/mod/github.com/thoas/[email protected]/logging/logging.go:123
github.com/thoas/bokchoy.loggerTracer.Log
/userdir/go/pkg/mod/github.com/thoas/[email protected]/tracer.go:32
github.com/thoas/bokchoy.(*Queue).consumeDelayedTasks.func1
/userdir/go/pkg/mod/github.com/thoas/[email protected]/queue.go:152
071d83d Introduced a change that makes ids predictable and no longer random.
This needs to be fixed, either replace ulid by a global counter or generate a random entropy source.
Hello!
My focus atm is on instrumentation, I wrote my logger and my tracer using zap. It is kind of working I think, but I do not understand the difference. Looking at the Tracer and how it is used in queue.go
it logs and that's it. I would like to do a trace such as OpenTracing, OpenTeletry. Do you have any suggestions? I think I can do a mix of middleware/event but I would like to get a direction from you.
Thanks a lot
Hello,
When a task is not found in Redis, it returns an error with message cannot cast id: Attribute error
.
Looking into the code, I see there is actually a check to tell whether the task is not found in Redis:
Line 228 in 0421bea
But I think that check will always be false because of
Line 325 in 0421bea
Started using v0.2.0.
The example https://github.com/thoas/bokchoy/blob/master/examples/custom-broker/main.go stopped working because there are private fields which have to be initialized.
My code:
broker, err = bokchoy.New(ctx, bokchoy.Config{},
bokchoy.WithBroker(&bokchoy.RedisBroker{Client: myRedisClient, ClientType: "client"}),
type RedisBroker requires the following fields to be initialized:
mu *sync.Mutex
queues map[string]struct{}
and it's only done in newRedisBroker() which is private.
Without those 2 being initialized there are 2 panics:
1.
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x13c7912]
goroutine 79 [running]:
sync.(*Mutex).Lock(...)
/usr/local/Cellar/go/1.13.7/libexec/src/sync/mutex.go:74
github.com/thoas/bokchoy.(*RedisBroker).consumeDelayed(0xc000545440, 0x1d0ec60, 0xc0000d0038, 0xc0003ceda0, 0x1d, 0x3b9aca00)
/Users/weber/gopath/pkg/mod/github.com/thoas/[email protected]/broker_redis.go:183 +0x42
panic: assignment to entry in nil map
goroutine 52 [running]:
github.com/thoas/bokchoy.(*RedisBroker).consumeDelayed(0xc0005bf0e0, 0x1d0ec20, 0xc0000380c8, 0xc0003882e0, 0x1d, 0x3b9aca00)
/Users/weber/gopath/pkg/mod/github.com/thoas/[email protected]/broker_redis.go:228 +0x1fe
So this makes impossible to use a custom broker (custom redis client in my case).
Thanks!
Imagine the following scenario:
1234
1234
is submitted to the same queueWhat will happen in this scenario?
Will it process both tasks or will it disregard the second one (as it's already processing)?
I can publish and process a task using the example you providie.
When . I tried to publish using my application it appears not to be written to my DB.
This is the log entry I am seeing: logging/logging.go:129 Task published {"logger": "bokchoy", "component": "queue", "queue": {"name": "suspend", "consumers_count": 2}, "duration": "6.290392ms", "task": {"id": "01DV2D28B0MQJHBF4QX1EFD6Y3", "name": "suspend", "status": "waiting", "payload": "{crn:v1:staging:public:is:us-south-1:a/78d00cc88d254fba849cdd8a8e4f1618::instance:dc4b93ef-2c02-4e4b-bd4c-35deb6c39c6e}", "max_retries": 3, "ttl": "3m0s", "timeout": "3m0s", "published_at": "2019-12-02T04:14:30.240Z", "retry_intervals": "30s, 30s, 30s"}}
Doing a get with the task ID does not return anything.
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