RFC: https://bugs.openjdk.java.net/browse/JMC-6554

Marcus Hirt marcus.hirt at datadoghq.com
Tue Aug 20 09:12:08 UTC 2019


I'd like to avoid fragmentation. In the best case scenario, any downstream
build of JMC would work with most JVMs. Oracle invented JFR and JMC and
donated it all to the community. I think it's fair to continue to make sure
JMC keeps working with the early versions of Oracle's work, and that we
avoid causing unnecessary grief.

I agree that this work should be prioritized, and that one of the goals of
7.1.0 should be to work well with the backport. I've raised the priority of
this bug to P2, and asked Oracle to own it. I'll talk to Guru about the
earliest possible iteration when this work can be targeted.

Kind regards,
Marcus

On Tue, Aug 20, 2019 at 10:41 AM Mario Torre <neugens at redhat.com> wrote:

> We would need some acknowledgement that this will be done in some timing
> fashion however, I would like to avoid that we ship this patch downstream
> only for the need to support the closed 7.
>
> In general I think this whole code shouldn’t be part of upstream JMC, you
> mentioned some reason for this, can you explain better the issue and why is
> it needed?
>
> Cheers,
> Mario
>
> On Tuesday, August 20, 2019, Marcus Hirt <marcus.hirt at datadoghq.com>
> wrote:
>
>> Someone from Oracle should rework this patch into something that works
>> properly with Oracle JDK 7 to 10. Guru, can someone from the Oracle JMC
>> team own JMC-6554.
>>
>> Kind regards,
>> Marcus
>>
>> On Tue, Aug 20, 2019 at 8:49 AM Mario Torre <neugens at redhat.com> wrote:
>>
>>> Hi!
>>>
>>> I would like to push the patch Aleksey proposed on JMC-6554.
>>>
>>> I understand there's some concern that this may not be incompatible with
>>> Oracle proprietary builds, but I have no way to test this, nevertheless,
>>> going forward OpenJDK 8 (which is still the reference implementation)
>>> will likely have JFR and JMC should work with it, possibly by 7.1
>>> already.
>>>
>>> Can someone from Oracle test the patch and give some feedback?
>>>
>>> Cheers,
>>> Mario
>>> --
>>> Mario Torre
>>> Associate Manager, Software Engineering
>>> Red Hat GmbH <https://www.redhat.com>
>>> 9704 A60C B4BE A8B8 0F30  9205 5D7E 4952 3F65 7898
>>>
>>
>
> --
> Mario Torre
> Associate Manager, Software Engineering
> Red Hat GmbH <https://www.redhat.com><br>9704 A60C B4BE A8B8 0F30
> 9205 5D7E 4952 3F65 7898
>


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