11:35 a.m.
How do we explain the drops in requests in the following example:
http://www.hawkular.org/img/blog/2017/2017-02-13-teaser.png
Shouldn't it always be the same load ?
Do we know if it's an it's an issue in APM, or is it that the load
balancing "lose" some requests as we scale down a server ? or else ?
Thomas
11:46 a.m.
On 02/22/2017 06:35 PM, Thomas Heute wrote:
How do we explain the drops in requests in the following example:
http://www.hawkular.org/img/blog/2017/2017-02-13-teaser.png
Shouldn't it always be the same load ?
Yes.
Do we know if it's an it's an issue in APM, or is it that the
load
balancing "lose" some requests as we scale down a server ? or else ?
Not yet, but I have it on my radar. I think there's something in our
example that is not perfectly coded, as I've seen some Vert.x warnings
like "timed out waiting for answer from ...".
- Juca.
12:37 p.m.
On Wed, Feb 22, 2017 at 6:46 PM, Juraci Paixão Kröhling <
jpkroehling(a)redhat.com> wrote:
On 02/22/2017 06:35 PM, Thomas Heute wrote:
> How do we explain the drops in requests in the following example:
> http://www.hawkular.org/img/blog/2017/2017-02-13-teaser.png
>
> Shouldn't it always be the same load ?
Yes.
> Do we know if it's an it's an issue in APM, or is it that the load
> balancing "lose" some requests as we scale down a server ? or else ?
Not yet, but I have it on my radar. I think there's something in our
example that is not perfectly coded, as I've seen some Vert.x warnings
like "timed out waiting for answer from ...".
Ok, thanks !
- Juca.
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1:55 a.m.
I don't think it can be APM, as it wouldn't be impacted by the scaling of the app
- i.e. if it was APM we would see drops in txns at other points where the scaling
wasn't occurring.
Regards
Gary
----- Original Message -----
On 02/22/2017 06:35 PM, Thomas Heute wrote:
> How do we explain the drops in requests in the following example:
> http://www.hawkular.org/img/blog/2017/2017-02-13-teaser.png
>
> Shouldn't it always be the same load ?
Yes.
> Do we know if it's an it's an issue in APM, or is it that the load
> balancing "lose" some requests as we scale down a server ? or else ?
Not yet, but I have it on my radar. I think there's something in our
example that is not perfectly coded, as I've seen some Vert.x warnings
like "timed out waiting for answer from ...".
- Juca.
_______________________________________________
hawkular-dev mailing list
hawkular-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/hawkular-dev
4:02 a.m.
On 02/23/2017 08:55 AM, Gary Brown wrote:
I don't think it can be APM, as it wouldn't be impacted by
the scaling of the app - i.e. if it was APM we would see drops in txns at other points
where the scaling wasn't occurring.
Right, I think it's a problem in our code *for the example*. APM is
correctly doing its job, telling us there's a problem in our example :)
- Juca.
6:51 a.m.
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13 comments
8 participants
participants (8)
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Adam James -
apachi likov -
Betty Patterson -
Gary Brown -
Himenez Bravo -
Jhon Barbar -
Juraci Paixão Kröhling -
Thomas Heute