Re: Flink 1.1.3 web UI is loading very slowly

[Ufuk Celebi]

If it is not what Stephan said, you can check requests directly against the 
REST API and see if you experience the same slow down there.

https://ci.apache.org/projects/flink/flink-docs-release-1.2/monitoring/rest_api.html

– Ufuk

On 16 December 2016 at 10:52:18, Yury Ruchin (yuri.ruc...@gmail.com) wrote:
> Thanks for the clue, Stephan! I will check.
>  
> 2016-12-16 12:44 GMT+03:00 Stephan Ewen :
>  
> > Not sure if that is the problem, but upon first access to a resource, The
> > web server extracts the resource from the JAR file and puts it into the
> > temp directpry. Maybe that is slow for whatever reason?
> >
> > On Thu, Dec 15, 2016 at 8:04 PM, Yury Ruchin  
> > wrote:
> >
> >> Hi,
> >>
> >> I'm seeing an issue with the load speed of Flink Web UI when running in
> >> YARN session. Initial load takes several minutes or even more, although
> >> according to the browser console there are only a couple of MBs to
> >> download. When the loading is complete, the UI itself is quite responsive.
> >>
> >> I don't see such an issue with YARN UI loading from the same cluster over
> >> the same network. I suspected that YARN proxy may cause the slowdown and
> >> hit the direct Flink web UI URL - the same story. CPU, load average and
> >> memory consumption on the node hosting job manager are low. I gave
> >> jobmanager from 4Gb to 10Gb heap - no effect.
> >>
> >> Any ideas on how to approach the problem are appreciated.
> >>
> >> Thanks,
> >> Yury
> >>
> >
> >
>  

Re: Flink 1.1.3 web UI is loading very slowly

[Yury Ruchin]

Thanks for the clue, Stephan! I will check.

2016-12-16 12:44 GMT+03:00 Stephan Ewen :

> Not sure if that is the problem, but upon first access to a resource, The
> web server extracts the resource from the JAR file and puts it into the
> temp directpry. Maybe that is slow for whatever reason?
>
> On Thu, Dec 15, 2016 at 8:04 PM, Yury Ruchin 
> wrote:
>
>> Hi,
>>
>> I'm seeing an issue with the load speed of Flink Web UI when running in
>> YARN session. Initial load takes several minutes or even more, although
>> according to the browser console there are only a couple of MBs to
>> download. When the loading is complete, the UI itself is quite responsive.
>>
>> I don't see such an issue with YARN UI loading from the same cluster over
>> the same network. I suspected that YARN proxy may cause the slowdown and
>> hit the direct Flink web UI URL - the same story. CPU, load average and
>> memory consumption on the node hosting job manager are low. I gave
>> jobmanager from 4Gb to 10Gb heap - no effect.
>>
>> Any ideas on how to approach the problem are appreciated.
>>
>> Thanks,
>> Yury
>>
>
>

Re: Flink 1.1.3 web UI is loading very slowly

[Stephan Ewen]

Not sure if that is the problem, but upon first access to a resource, The
web server extracts the resource from the JAR file and puts it into the
temp directpry. Maybe that is slow for whatever reason?

On Thu, Dec 15, 2016 at 8:04 PM, Yury Ruchin  wrote:

> Hi,
>
> I'm seeing an issue with the load speed of Flink Web UI when running in
> YARN session. Initial load takes several minutes or even more, although
> according to the browser console there are only a couple of MBs to
> download. When the loading is complete, the UI itself is quite responsive.
>
> I don't see such an issue with YARN UI loading from the same cluster over
> the same network. I suspected that YARN proxy may cause the slowdown and
> hit the direct Flink web UI URL - the same story. CPU, load average and
> memory consumption on the node hosting job manager are low. I gave
> jobmanager from 4Gb to 10Gb heap - no effect.
>
> Any ideas on how to approach the problem are appreciated.
>
> Thanks,
> Yury
>