[Xymon] [xymon] Re: holes in trend graphs

[Stewart, Tom L.]

No, it seems I get fewer gaps using --no-cache, but it has always only affected the "cpu" and "users and processes" graphs. When I can catch the missing data in process, I see that the rrd is never updated or timestamped, but I never see any type of error message in any of the log files.

I also forget to mention that I am only using one setting for the rrd definitions and I do have the extra-rrd definition for the soloris MP and Zone stats.

Here is what the configuration file looks like for the rrd... stuff in tasks.cfg.

 # "rrdstatus" updates RRD files with information that arrives as "status" messages.
[rrdstatus]
        ENVFILE /home/xymon/server/etc/xymonserver.cfg
        NEEDS xymond
        CMD xymond_channel --channel=status --log=$XYMONSERVERLOGS/rrd-status.log xymond_rrd --no-cache --rrddir=$XYMONVAR/rrd

# "rrddata" updates RRD files with information that arrives as "data" messages.
[rrddata]
        ENVFILE /home/xymon/server/etc/xymonserver.cfg
        NEEDS xymond
        CMD xymond_channel --channel=data  --log=$XYMONSERVERLOGS/rrd-data.log xymond_rrd --no-cache --rrddir=$XYMONVAR/rrd --extra-te
sts=mpstat,zonestat --extra-script=/home/xymon/server/ext/rrd_data.pl

And here is the rrddefinitions.cfg file for only what I have changed.

# This one is the default setup. You can change it, if you like.
[]
        # 576 datapoints w/ 5 minute interval = 48 hours @ 5 min avg.
        RRA:AVERAGE:0.5:1:82944
        # 576 datapoints w/ 6*5 minute averaged = 12 days @ 5 min avg.
        #RRA:AVERAGE:0.5:6:82944 **** NOT USED ****
        # 576 datapoints w/ 24*5 minute averaged = 48 days @ 5 min avg.
        #RRA:AVERAGE:0.5:24:82944 **** NOT USED ****
        # 576 datapoints w/ 288*5 minute averaged = 576 days @ 5 min avg.
        #RRA:AVERAGE:0.5:288:82944 **** NOT USED ****

Tom


-----Original Message-----
From: Jeremy Laidman [mailto:jlaidman at rebel-it.com.au] 
Sent: Monday, March 28, 2011 9:42 PM
To: Stewart, Tom L.
Cc: xymon at xymon.com
Subject: Re: [Xymon] [xymon] Re: holes in trend graphs

Tom, do you get the same as me with the "--no-cache" option:
1) gaps for most trend graphs go away
2) trend graphs for "cpu" and "users and processes" went to zero (actually NaN)

J

On Fri, Mar 25, 2011 at 12:35 AM, Stewart, Tom L.
<Tom.Stewart at landsend.com> wrote:
> I put a note in last week saying I was having the same issue in the 4.3
> release and looks like the same issue that was in the beta. The holes
> are totally random and I asked if the --no-cache still works the same in
> the xymond_rrd, but I have not seen anyone respond.
>
> Tom
>
> -----Original Message-----
> From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf
> Of Jeremy Laidman
> Sent: Wednesday, March 23, 2011 9:44 PM
> To: xymon at xymon.com
> Subject: [Xymon] [xymon] Re: holes in trend graphs
>
> Has anyone made progress with this?  I have the exact same problem
> with no solution and nothing interesting in the logs.  As soon as I
> disable caching on xymond_rrd, the gaps go away.
>
> However as soon as I did this, the graphs for "cpu load" and "users
> and processes" both stopped updating completely.  All other trend
> graphs are perfect.  None of the network tests had a problem, so this
> seems to be restricted to numbers coming from the xymon client as
> "client data".
>
> -----Original Message-----
> From: "Stewart, Tom L." <Tom.Stewart (at) landsend.com>
> Date: Wed, 12 Jan 2011 09:18:03 -0600
> To: xymon (at) xymon.com
> Subject: [xymon] Re: holes in trend graphs
>
> I believe Henrik has found and fixed this issue, but I don't know if it
> is in the beta3 version. He has been talking about a new release.
>
> Tom
>
> -----Original Message-----
> From: Dominique Frise [mailto:dominique.frise (at) unil.ch]
> Sent: Wednesday, January 12, 2011 2:08 AM
> To: xymon (at) xymon.com
> Subject: [xymon] Re: holes in trend graphs
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