Java in a docker container

[kant kodali]

Hi Volker,

Thanks for this. I would agree with Ioi Lam on this
https://bugs.openjdk.java.net/browse/JDK-8146115 that we should try and do
this for Java 9 instead of pushing towards 10.


I am just really tired of hearing the biased views and false claims on Java
from Go community when in fact Go cannot do many things IMO.
I have a high respect for people who worked on Java and JVM and if one
looks into the code of JDK that will be transparent.

We can also try and do some interesting things such as live migration. For
example, In container world it's all about spawning another container when
it crashes or running slow while this is ok for OLAP type systems it may
not be ok for OLTP systems where one may not just reboot the container when
transaction is running so we may be able to store a state within the JVM
and may be able to execute that on another machine continuing from where it
left off and so on.

I just want JVM to win end of the day while I feel others (other languages)
are trying to take over!

Thanks!





On Tue, Dec 13, 2016 at 12:14 AM, Volker Simonis <volker.simonis at gmail.com>
wrote:

> Hi Kant,
>
> there's some work underway to better support Docker containers:
>
> 8170888: [linux] Experimental support for cgroup memory limits in
> container (ie Docker) environments
> https://bugs.openjdk.java.net/browse/JDK-8170888
>
> has just been fixed a few hours ago.
>
> Recently, there have been some discussions around this topic on the
> Hotspot mailing list:
>
> http://mail.openjdk.java.net/pipermail/hotspot-dev/2016-
> November/025404.html
> http://mail.openjdk.java.net/pipermail/hotspot-dev/2016-
> December/025406.html
>
> and there's another Enhancement request open for this topic:
>
> 8146115: physical memory does not see Docker resource limits
> https://bugs.openjdk.java.net/browse/JDK-8146115
>
> Please feel free to contribute any insights from your side to this
> discussions.
>
> Regards,
> Volker
>
>
> On Tue, Dec 13, 2016 at 8:25 AM, kant kodali <kanth909 at gmail.com> wrote:
> > Any plans or proposals on how to move forward on this ?
> > https://www.youtube.com/watch?v=hJyAfC-Z2xk
> >
> > It would be a great loss for java community if Java doesn't keep up with
> > container world and I seriously hope Java does better than anything that
> is
> > out there!
> >
> > please let me know.
> >
> > Thanks!
>