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Posted to dev@flink.apache.org by Alexander Fedulov <al...@ververica.com> on 2022/05/30 09:17:37 UTC
Re: [DISCUSS] FLIP-213: TaskManager's Flame Graphs
Hi Jacky,
Some performance improvements for Flame Graphs related to how the stack
traces are collected were recently merged [1]. Since you are working on a
real-life environment with high parallelism, could you maybe run a couple
of tests to verify that everything still works as expected after the
change? Ideally we should now be able to remove the feature flag for Flame
Graphs, but I would like to collect some data points first.
[1] https://github.com/apache/flink/pull/19228
Thanks,
Alexander Fedulov
On Fri, Mar 11, 2022 at 12:41 PM Yufei Liu <li...@gmail.com> wrote:
> Hi Jacky,
> I think it’s a very useful feature, can get flame graph easily and avoid
> run script personally.
> But I think can package async-profiler library into flink, and use JNI
> execute the profiling, doesn’t depend on local environment.
> We did this way in out internal version, and provide api to download
> generated html file.
>
> Jacky Lau <28...@qq.com.invalid> 于2022年1月24日周一 16:48写道：
>
> > Hi All,
> > I would like to start the discussion on FLIP-213 <
> >
> https://cwiki.apache.org/confluence/display/FLINK/FLIP-213%3A+TaskManager%27s+Flame+Graphs>
> > ;
> > which aims to provide taskmanager level(process level) flame graph
> > by async profiler, which is most popular tool in java performance. and
> the
> > arthas and intellij both use it.
> > And we support it in our ant group company.
> > And Flink supports FLIP-165: Operator's Flame Graphs
> > now. and it draw flame graph by the front-end
> > libraries d3-flame-graph, which has some problem in jobs
> > of large of parallelism.
> > Please be aware that the FLIP wiki area is not fully done
> > since i don't konw whether it will accept by flink community.
> > Feel free to add your thoughts to make this feature better!
> i
> > am looking forward to all your response. Thanks too much!
> >
> >
> >
> >
> > Best Jacky Lau
>