Status, NCV and time stamps

(Sending this again to the list, as I sent it using the wrong e-mail
previously (non-subscriber e-mail))

I second this request for enhancement. It would be nice to be able to send
more data from the client to be displayed on the column/test page, but not
get parsed to be included in the RRD graph. Only parsing certain lines that
are in the NCV format would be a nice feature. Something like what J.C.
mentioned ("a data parser that looks for a hidden HTML comment marker for
lines to process (and ignores the rest)") would work well for this, IMO.

Or is there a way to do this already? (even through a hack?)

Nothing urgent, just something that would be nice to be included in some
future Xymon release.

Thanks.

--
Matt Vander Werf

On Tue, Oct 6, 2015 at 10:39 AM, Matt Vander Werf <user-dfc3cf2ca434@xymon.invalid>
wrote:

I second this request for enhancement. It would be nice to be able to send
more data from the client to be displayed on the column/test page, but not
get parsed to be included in the RRD graph. Only parsing certain lines that
are in the NCV format would be a nice feature. Something like what J.C.
mentioned ("a data parser that looks for a hidden HTML comment marker for
lines to process (and ignores the rest)") would work well for this, IMO.

Or is there a way to do this already? (even through a hack?)

Nothing urgent, just something that would be nice to be included in some
future Xymon release.

Thanks.

--
Matt Vander Werf

On Mon, Oct 5, 2015 at 7:48 PM, Boldt, David <user-945c7be1b8e4@xymon.invalid> wrote:

Thanks for these leads. Will looks at both the filter and "trends"
message options.

As a request for enhancement, I think it would be useful to have an
option to use a regexp to extract data from the status, one for each
variable.


On Mon, Oct 5, 2015 at 7:36 PM, J.C. Cleaver <user-87556346d4af@xymon.invalid>
wrote:

On Mon, October 5, 2015 3:52 pm, Boldt, David wrote:

I'm in the process of converting Big Brother tests to XYMon and would
like
to enable RRD/graphics for these tests.

Several of these tests present date/time information which is
important.

As a workaround for one test I have replaced the colon on a HH:MM:DD
formatted date with a dot, but it doesn't really look like a time
anymore.

* Is there a way to have NCV ignore colons (and only use "=")?

* Is there a way to have NCV ignore a line (which might contain
colons)?

Unfortunately, there isn't a way to do either of these at the moment. I'd
considered a data parser that looks for a hidden HTML comment marker for
lines to process (and ignores the rest), but it's not quite present yet.

* Can I use Data messages in such a way that the corresponding Status
message is not parsed?

The easiest way to do this would be to add a --filter= option to the
xymond_channel command line for the xymond_rrd process that's handling
the
*status* channel, but not the data channel.

There's a CPU load hit for doing so (since now you're doing a PCRE on
each
message), however it may not have much of an impact depending on your
message volume.

* Might there be some other mechanism entirely?

Generally, speaking for more advanced RRD submission, the 'trends'
message
can be a useful data payload which is read directly by xymond_rrd. The
advantage there (aside from more direct control) is the ability to send
data points for multiple graphs at once, which could outweigh the expense
of another message transmission.


HTH,

-jc

--
                                         -- David Boldt
                                            <user-945c7be1b8e4@xymon.invalid>


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