Hi Abimaran,

But not in the default docker images. Yes in K8S artifacts we have set the
Xmx value. But again we need to clearly document it like why to change? how
to change? ..etc.

On Fri, Oct 20, 2017 at 3:41 PM, Abimaran Kugathasan <[email protected]>
wrote:

> Hi Lakmal,
>
> All of the container related images will use the default startup script
> shipped in the product to boot the image up, ex [1]. And, we are
> setting -Xms256m -Xmx1024m for all the products.
>
> -XX:MaxHeapSize option is equivalent to -Xmx. [2]
>
> [1]: https://github.com/wso2/kubernetes-apim/blob/2.1.0-
> nfs/base/apim/init_carbon.sh
> [2]: https://docs.oracle.com/javase/8/docs/technotes/tools/
> windows/java.html
>
> On Fri, Oct 20, 2017 at 2:21 PM, Lakmal Warusawithana <[email protected]>
> wrote:
>
>> Hi All,
>>
>> If we do not set MaxHeapSize in JVM which runs inside docker it will set
>> it as 1/4 of the physical memory. But issue is, inside the docker it will
>> read as total physical memory of the HOST machine rather taking allocated
>> memory to that docker container. So if we do not properly set MaxHeapSize
>> it will cause to many issues. [1]
>>
>> As a quick action, shall we properly document this in our all docker
>> repositories? Also it should go to doc site as well.
>>
>> Going forward we should allow users to pass this as env variable and set
>> it up.
>>
>> [1] https://developers.redhat.com/blog/2017/03/14/java-inside-docker/
>>
>> thanks
>>
>> --
>> Lakmal Warusawithana
>> Senior Director - Cloud Architecture; WSO2 Inc.
>> Mobile : +94714289692 <+94%2071%20428%209692>
>> Blogs : https://medium.com/@lakwarus/
>>             http://lakmalsview.blogspot.com/
>>
>>
>>
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>>
>>
>
>
> --
> Thanks
> Abimaran Kugathasan
> Senior Software Engineer - API Technologies
>
> Email : [email protected]
> Mobile : +94 773922820 <+94%2077%20392%202820>
>
> <http://stackoverflow.com/users/515034>
> <http://lk.linkedin.com/in/abimaran>
> <http://www.lkabimaran.blogspot.com/>  <https://github.com/abimarank>
> <https://twitter.com/abimaran>
>
>
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>


-- 
Lakmal Warusawithana
Senior Director - Cloud Architecture; WSO2 Inc.
Mobile : +94714289692
Blogs : https://medium.com/@lakwarus/
            http://lakmalsview.blogspot.com/
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