Yes, It is included in my spec. Open to use anything,it should be optimal
for throughput.
Regards
bhanu

On Wed, Nov 8, 2017 at 8:00 PM, Ted Yu <yuzhih...@gmail.com> wrote:

> Did you use G1GC ?
> Thanks
> -------- Original message --------From: John Yost <hokiege...@gmail.com>
> Date: 11/8/17  5:48 AM  (GMT-08:00) To: users@kafka.apache.org Cc:
> ja...@scholz.cz Subject: Re: Kafka JVM heap limit
> In addition, in my experience, a memory heap > 8 GB leads to long GC pauses
> which causes the ISR statuses to constantly change, leading to an unstable
> cluster.
>
> --John
>
> On Wed, Nov 8, 2017 at 4:30 AM, chidigam . <bhanu.ki...@gmail.com> wrote:
>
> > Meaning, already read the doc, but couldn't relate, having large Heap for
> > JVM will not help
> > Now it all make sense.
> > Many thanks.
> > Bhanu
> >
> > On Wed, Nov 8, 2017 at 2:34 PM, chidigam . <bhanu.ki...@gmail.com>
> wrote:
> >
> > > Hi Jakub,
> > > Thank you very much. I have read this concept I/O cache in design
> > section.
> > > But couldn't connect the dots.
> > >
> > > Regards
> > > Bhanu
> > >
> > > On Wed, Nov 8, 2017 at 2:10 PM, Jakub Scholz <ja...@scholz.cz> wrote:
> > >
> > >> This is probably because Kafka uses quite heavily the disk cache
> > >> maintained
> > >> by the operating system instead of storing messages in the JVM memory.
> > So
> > >> the requirements for the heap memory can be fairly small. The design
> > >> section of the documentation describes the details:
> > >> http://kafka.apache.org/documentation/#design
> > >>
> > >> Jakub
> > >>
> > >> On Wed, Nov 8, 2017 at 9:30 AM, chidigam . <bhanu.ki...@gmail.com>
> > wrote:
> > >>
> > >> > Hi All,
> > >> > I have basic question on Kafka JVM configuration, in most of forums
> I
> > >> have
> > >> > seen max heap as 8GB.  Why it is not recommended beyond that. Is
> there
> > >> any
> > >> > design limitation ?
> > >> > Any help in this regards is highly appreciated.
> > >> >
> > >> > Regards
> > >> > Bhanu
> > >> >
> > >>
> > >
> > >
> >
>

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