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From Chiradeep Vittal <chirade...@gmail.com>
Subject Re: [QUESTION] Upgrade path to JDK8
Date Mon, 20 Feb 2017 20:59:30 GMT
You can build the system vm with  -source 1.7 -target 1.7 
Also unless you are using Java8 features (lambda) the classfiles produced by javac 8 should
work in a 1.7 JVM

Sent from my iPhone

> On Feb 20, 2017, at 11:51 AM, Will Stevens <wstevens@cloudops.com> wrote:
> 
> yes, that is what I was expecting.  which is why I was asking about Wei's
> setup because he seems to have worked around that problem.  Or he has a
> custom SystemVM template running with both JDK7 and JDK8.
> 
> *Will STEVENS*
> Lead Developer
> 
> <https://goo.gl/NYZ8KK>
> 
>> On Mon, Feb 20, 2017 at 2:20 PM, Syed Ahmed <sahmed@cloudops.com> wrote:
>> 
>> The problem is that systemvm.iso is built with java 8 whereas java on the
>> VR is java 7
>>> On Mon, Feb 20, 2017 at 13:20 Will Stevens <wstevens@cloudops.com> wrote:
>>> 
>>> Did it work after resetting a VPC or when blowing away the SSVM or
>> CPVM?  I
>>> would not expect the SSVM or the CPVM to come up if the management server
>>> was built with JDK8 and the system vm template is only using JDK7.  Can
>> you
>>> confirm?‚Äč
>>> 
>>> *Will STEVENS*
>>> Lead Developer
>>> 
>>> <https://goo.gl/NYZ8KK>
>>> 
>>>> On Mon, Feb 20, 2017 at 1:15 PM, Wei ZHOU <ustcweizhou@gmail.com> wrote:
>>>> 
>>>> We've tested management server 4.7.1 with ubuntu 16.04/openjdk8 and
>>>> systemvm 4.6 with debian7/openjdk7.
>>>> The systemvms (ssvm, cpvm) work fine.
>>>> 
>>>> I agree we need consider the openjdk upgrade in systemvm template.
>>>> 
>>>> -Wei
>>>> 
>>>> 2017-02-20 18:15 GMT+01:00 Will Stevens <wstevens@cloudops.com>:
>>>> 
>>>>> Regarding my question. Is it because of the version of Java that the
>>>>> systemvm.iso is built on?
>>>>> 
>>>>> On Feb 20, 2017 11:58 AM, "Will Stevens" <wstevens@cloudops.com>
>>> wrote:
>>>>> 
>>>>>> A question that is hidden in here is:
>>>>>> - Why does the JDK version on the management server have to match
>> the
>>>> JDK
>>>>>> version of the System VM?
>>>>>> 
>>>>>> *Will STEVENS*
>>>>>> Lead Developer
>>>>>> 
>>>>>> <https://goo.gl/NYZ8KK>
>>>>>> 
>>>>>> On Mon, Feb 20, 2017 at 11:50 AM, Pierre-Luc Dion <
>>> pdion@cloudops.com>
>>>>>> wrote:
>>>>>> 
>>>>>>> Hi,
>>>>>>> 
>>>>>>> In the context of deployment of CloudStack with VPCs,
>>>>>>> What will happen to a cloud when upgrading to 4.10 that now use
>>> jdk8?
>>>>>>> 
>>>>>>> Does upgrading the management-server to 4.10 jdk8 and then keep
>> the
>>>> old
>>>>>>> VRs
>>>>>>> run for a while that run on JDK7 will still work ?
>>>>>>> 
>>>>>>> Because If we upgrade the management-server to jdk8, we need
to
>> keep
>>>> VR
>>>>> to
>>>>>>> work until they get upgraded but we can't force an upgrade of
VR
>>> just
>>>>>>> because the management-server is now using JDK8.
>>>>>>> 
>>>>>>> Thanks,
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>> 
>>>> 
>>> 
>> 

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