Hi,

Heap issue was resolved using -Xms2048m -Xmx2048m -XX:MaxPermSize=1024m.
Thanks Grainier, Abimaran and Sajith

Regards,
Charini

On Mon, Jun 20, 2016 at 12:01 PM, Sajith Ravindra <[email protected]> wrote:

> Hi Charini,
>
> How large are these events ? It's unlikely that Max attribute aggregator
> has caused this since it only keeps the values. The most probable reason is
> memory is not enough to hold the 3min window. We should be able to confirm
> this by analyzing the generated hepdump.
>
> As Abimaran has mentioned you should be able to overcome this issue by
> increasing the Xms and Xmx values. I assume you have used the default
> values for Xms and Xmx.
>
> Thanks
> *,Sajith Ravindra*
> Senior Software Engineer
> WSO2 Inc.; http://wso2.com
> lean.enterprise.middleware
>
> mobile: +94 77 2273550
> blog: http://sajithr.blogspot.com/
> <http://lk.linkedin.com/pub/shani-ranasinghe/34/111/ab>
>
> On Mon, Jun 20, 2016 at 10:32 AM, Abimaran Kugathasan <[email protected]>
> wrote:
>
>> Hi Charini,
>>
>> You have to either increase the allocated heap size (-Xmx) or the limit
>> check can be disabled by adding the option -XX:-UseGCOverheadLimit to
>> the command line.
>>
>> More information can be found here [1]
>>
>>
>> [1] :
>> http://www.oracle.com/technetwork/java/javase/gc-tuning-6-140523.html#par_gc.oom
>>
>> On Mon, Jun 20, 2016 at 10:02 AM, Charini Nanayakkara <[email protected]>
>> wrote:
>>
>>> Hi,
>>>
>>> I get $subject when attempting to execute Max aggregate function when a
>>> 3 min duration is considered on an external time stamp. The overhead limit
>>> is likely to have exceeded due to 9 000 000  events arriving within this 3
>>> min duration. Any suggestions on resolving this issue are appreciated.
>>>
>>> Thank you
>>> Charini
>>>
>>> --
>>> Charini Vimansha Nanayakkara
>>> Software Engineer at WSO2
>>> Mobile: 0714126293
>>>
>>>
>>> _______________________________________________
>>> Dev mailing list
>>> [email protected]
>>> http://wso2.org/cgi-bin/mailman/listinfo/dev
>>>
>>>
>>
>>
>> --
>> Thanks
>> Abimaran Kugathasan
>> Senior Software Engineer
>>
>> Email : [email protected]
>> Mobile : +94 773922820
>>
>> <http://stackoverflow.com/users/515034>
>> <http://lk.linkedin.com/in/abimaran>
>> <http://www.lkabimaran.blogspot.com/>  <https://github.com/abimarank>
>> <https://twitter.com/abimaran>
>>
>>
>> _______________________________________________
>> Dev mailing list
>> [email protected]
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>>
>>
>


-- 
Charini Vimansha Nanayakkara
Software Engineer at WSO2
Mobile: 0714126293
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