Re: Resource Graph behaviour change in V22

OpenNMS 22.0.0 changed to the "Backshift" engine for rendering resource
graphs by default (see https://issues.opennms.org/browse/NMS-10152).

I think you may be seeing this bug in Backshift impacting the zoom
behavior: https://issues.opennms.org/browse/BSHIFT-172

You can revert to the older "png" engine by editing
$OPENNMS_HOME/etc/opennms.properties, and
setting org.opennms.web.graphs.engine to "png".

On Sun, Jun 10, 2018 at 8:55 PM JohnD Blackburn <[email protected]>
wrote:

> We’ve recently upgraded from 21.0.4 to 22, and I’ve noticed a change to
> how resource graph’s behave.
>
>
>
> Previously, I could generate a graph for the previous week/month, and then
> zoom in on an “interesting” spike in the graph by clicking on the graph,
> and then dragging the mouse pointer over the relevant timeframe of the
> graph, and OpenNMS would then re-generate the graph with the selected
> timeframe, with an appropriately re-scaled Y axis.
>
>
>
> Now I only seem to be able to “zoom” in on the graph by spinning the wheel
> on the mouse, but it is zooming both the x and Y axis, so by the time I’ve
> zoomed into the appropriate timeframe for the “interesting spike”, the y
> axis has also zoomed the same amount.  Eg:
>
>
>
>
>
>
>
> Now I want to zoom on those spikes, but all I seem to be able to get is:
>
>
>
>
>
>
>
> Both X and Y axis are zooming at exactly the same rate.
>
>
>
> What I need is to be able to zoom the X axis, and have the y axis scale
> appropriately to the range of data for the currently visible X axis.
>
>
>
> How do I get this functionality back?
>
>
>
>
>
> Regards,
>
> John Blackburn
>
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-- 

Mike Kelly

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