Stateless operator and Properties

[Sandesh Hegde <sa...@datatorrent.com>]

Hello Team,

Is it possible mark the operators stateless but the properties needs to be
applied from the config after recovery?

Thanks
Sandesh

Re: Stateless operator and Properties

[Sandesh Hegde <sa...@datatorrent.com>]

I have created the jira for this case.

https://issues.apache.org/jira/browse/APEXCORE-312

On Fri, Jan 22, 2016 at 10:53 AM Amol Kekre <am...@datatorrent.com> wrote:

>
> AFAIK right now platform does not have it right now. This is a valid ask.
> Usually this means the the variable(s) underneath are constant, but
> initialized during setup as opposed to being declared final.
>
> Thks
> Amol
>
> On Fri, Jan 22, 2016 at 9:25 AM, Sandesh Hegde <sa...@datatorrent.com>
> wrote:
>
>> Suppose property is fixed in that case I want to mark the operator as
>> stateless and during recovery I want the property to be re-applied from the
>> config file. This logic can be coded in the operator, but can it be done by
>> the platform?
>>
>> On Fri, Jan 22, 2016 at 9:15 AM Thomas Weise <th...@gmail.com>
>> wrote:
>>
>>> Properties are part of the operator state. So if the intention is to
>>> change properties after the application was launched the operator cannot be
>>> marked stateless.
>>>
>>>
>>> On Fri, Jan 22, 2016 at 9:11 AM, Sandesh Hegde <sa...@datatorrent.com>
>>> wrote:
>>>
>>>> Hello Team,
>>>>
>>>> Is it possible mark the operators stateless but the properties needs to
>>>> be applied from the config after recovery?
>>>>
>>>> Thanks
>>>> Sandesh
>>>>
>>>
>>>
>

Re: Stateless operator and Properties

[Amol Kekre <am...@datatorrent.com>]

AFAIK right now platform does not have it right now. This is a valid ask.
Usually this means the the variable(s) underneath are constant, but
initialized during setup as opposed to being declared final.

Thks
Amol

On Fri, Jan 22, 2016 at 9:25 AM, Sandesh Hegde <sa...@datatorrent.com>
wrote:

> Suppose property is fixed in that case I want to mark the operator as
> stateless and during recovery I want the property to be re-applied from the
> config file. This logic can be coded in the operator, but can it be done by
> the platform?
>
> On Fri, Jan 22, 2016 at 9:15 AM Thomas Weise <th...@gmail.com>
> wrote:
>
>> Properties are part of the operator state. So if the intention is to
>> change properties after the application was launched the operator cannot be
>> marked stateless.
>>
>>
>> On Fri, Jan 22, 2016 at 9:11 AM, Sandesh Hegde <sa...@datatorrent.com>
>> wrote:
>>
>>> Hello Team,
>>>
>>> Is it possible mark the operators stateless but the properties needs to
>>> be applied from the config after recovery?
>>>
>>> Thanks
>>> Sandesh
>>>
>>
>>

Re: Stateless operator and Properties

[Sandesh Hegde <sa...@datatorrent.com>]

Suppose property is fixed in that case I want to mark the operator as
stateless and during recovery I want the property to be re-applied from the
config file. This logic can be coded in the operator, but can it be done by
the platform?

On Fri, Jan 22, 2016 at 9:15 AM Thomas Weise <th...@gmail.com> wrote:

> Properties are part of the operator state. So if the intention is to
> change properties after the application was launched the operator cannot be
> marked stateless.
>
>
> On Fri, Jan 22, 2016 at 9:11 AM, Sandesh Hegde <sa...@datatorrent.com>
> wrote:
>
>> Hello Team,
>>
>> Is it possible mark the operators stateless but the properties needs to
>> be applied from the config after recovery?
>>
>> Thanks
>> Sandesh
>>
>
>

Re: Stateless operator and Properties

[Thomas Weise <th...@gmail.com>]

Properties are part of the operator state. So if the intention is to change
properties after the application was launched the operator cannot be marked
stateless.


On Fri, Jan 22, 2016 at 9:11 AM, Sandesh Hegde <sa...@datatorrent.com>
wrote:

> Hello Team,
>
> Is it possible mark the operators stateless but the properties needs to be
> applied from the config after recovery?
>
> Thanks
> Sandesh
>