We're running this in a local environment so that may be contributing to
what we're seeing.

On Fri, Dec 4, 2020 at 10:41 PM Rex Fenley <r...@remind101.com> wrote:

> Hello,
>
> I'm tuning flink for parallelism right now and when I look at the
> JobManager I see
> *taskmanager.cpu.cores* 1.7976931348623157E308
> Which looks like the maximum double number.
>
> We have 8 cpu cores, so we figured we'd bump to 16 for hyper threading. We
> have 37 operators so we rounded up and set 40 task slots.
>
> Here is our configuration
>
> "vmArgs": "-Xmx16g -Xms16g -XX:MaxDirectMemorySize=1207959552 
> -XX:MaxMetaspaceSize=268435456 -Dlog.file=/tmp/flink.log 
> -Dtaskmanager.memory.framework.off-heap.size=134217728b 
> -Dtaskmanager.memory.network.max=1073741824b 
> -Dtaskmanager.memory.network.min=1073741824b 
> -Dtaskmanager.memory.framework.heap.size=134217728b 
> -Dtaskmanager.memory.managed.size=6335076856b 
> -Dtaskmanager.memory.task.heap.size=8160437768b 
> -Dtaskmanager.memory.task.off-heap.size=0b -Dtaskmanager.numberOfTaskSlots=40 
> -Dtaskmanager.cpu.cores=16.0"
>
> We then tried with -Dtaskmanager.cpu.cores=7.0 and still ended up with
> that very odd value for cpu cores.
>
> How do we correctly adjust this?
>
> Thanks!
> --
>
> Rex Fenley  |  Software Engineer - Mobile and Backend
>
>
> Remind.com <https://www.remind.com/> |  BLOG <http://blog.remind.com/>  |
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>


-- 

Rex Fenley  |  Software Engineer - Mobile and Backend


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