Why have long-lived worker goroutines at all?
If you're just trying to limit the number of jobs in flight, a semaphore is
usually simpler.
(A `chan struct{}` or `chan bool` works fine as a simple semaphore; for
more complex use-cases, there are several semaphore packages on godoc.org.
Personally, I'm partial to https://godoc.org/golang.org/x/sync/semaphore.)
If the workers need some resource that is only available in fixed
quantities, it's still usually simpler to store and distribute the
resources (e.g. in a buffered channel) rather than the jobs.
As rog notes, a more complete example might be helpful.
On Friday, November 24, 2017 at 12:57:04 PM UTC-5, Michael Jones wrote:
>
> having workers pull from a single queue is an excellent approach. (unless
> you pull more than 3 million items per second from that queue :-)
>
> On Fri, Nov 24, 2017 at 2:11 AM, roger peppe <rogp...@gmail.com
> <javascript:>> wrote:
>
>> On 24 November 2017 at 05:46, <carsten....@gmail.com <javascript:>>
>> wrote:
>> > Hi!
>> >
>> > This should be covered somewhere already but I can't find it. So here's
>> my
>> > question:
>> >
>> > Assume N workers running in a goroutine each and a number of Job tasks
>> > coming in.
>> >
>> > The consensus appears to be to have one dispatcher goroutine collecting
>> all
>> > jobs, then pulling a ready worker from a single queue of worker
>> channels.
>>
>> What do you base that consensus on? Having all workers pull from
>> a single shared channel seems like a fine way to do things.
>>
>> It would help if you could provide some more complete code - the
>> snippets you provided don't really make sense on their own to me.
>>
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>
>
>
> --
> Michael T. Jones
> michae...@gmail.com <javascript:>
>
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