White holes in xymon graphs
Hi,
can anyone explain those (white) blackouts in the attached xymon graph? I see no messages neither in the client nor in the server logs.Those blackouts happen at different times:The duration is ~ 10 minutes = 2 intervalls?
Any hints? hjb
[Anhang "hobbithole2.pdf" gelöscht von Hermann-Josef Beckers/Kreis-Steinfurt]
This is the same thing I have been getting except my holes are only for one 5 minute interval and then repeats exactly 1 hour later, 2 hours later and sometimes 3 hours later. No messages, and other trending do not show any issue.
Are you running the 4.3.0 beta 2 version?
Tom
From: Hermann-Josef Beckers [mailto:hj.beckers at kreis-steinfurt.de] Sent: Tuesday, January 19, 2010 9:13 AM To: hobbit at hswn.dk Subject: [hobbit] White holes in xymon graphs
Hi,
can anyone explain those (white) blackouts in the attached xymon graph? I see no messages neither in the client nor in the server logs.Those blackouts happen at different times:The duration is ~ 10 minutes = 2 intervalls?
Any hints? hjb
[Anhang "hobbithole2.pdf" gelöscht von Hermann-Josef Beckers/Kreis-Steinfurt]
Re: Stewart, Tom L. 2010-01-19 <426A0EF5343CDE4CAA8565BBEDB9526F01632DA6 at USMSG111.leinternal.com>
This is the same thing I have been getting except my holes are only for one 5 minute interval and then repeats exactly 1 hour later, 2 hours later and sometimes 3 hours later. No messages, and other trending do not show any issue.
I've seen random holes caused by data being sent to the server twice (happends if you interconnect multiple hobbit servers), but these leave messages in rrd-status.log like "illegal update, minimum update delay is 1 second".
Is the data really sent every 5 minutes? It could be delayed by some (other) cronjob, and then get associated to the wrong time slot.
Christoph
cb at df7cb.de | http://www.df7cb.de/
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Hi,
i have those too and I'm running 4.2.0 on Debian built from source. And the holes in trends match more or less exactly the time the server was offline and/or rebooted. Maybe this gives you a point where you can start your investigations.
Cheers Torsten
Hermann-Josef Beckers wrote:
Hi,
can anyone explain those (white) blackouts in the attached xymon graph? I see no messages neither in the client nor in the server logs.Those blackouts happen at different times:The duration is ~ 10 minutes = 2 intervalls?
Any hints? hjb
[Anhang "hobbithole2.pdf" gelöscht von Hermann-Josef Beckers/Kreis-Steinfurt]
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I too have seen these white holes and have not figured out a pattern. I was getting errors in my rrd-status log about the time used to updates items, but for some reason that message stopped 15 days ago. I am running 4.3.0-0.beta2
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From: Hermann-Josef Beckers [mailto:hj.beckers at kreis-steinfurt.de] Sent: Tuesday, January 19, 2010 9:13 AM To: hobbit at hswn.dk Subject: [hobbit] White holes in xymon graphs
Hi,
can anyone explain those (white) blackouts in the attached xymon graph? I see no messages neither in the client nor in the server logs.Those blackouts happen at different times:The duration is ~ 10 minutes = 2 intervalls?
Any hints? hjb
[Anhang "hobbithole2.pdf" gelöscht von Hermann-Josef Beckers/Kreis-Steinfurt]
participants (5)
-
bb4＠richter-it.net
-
bewhite＠fellowes.com
-
cb＠df7cb.de
-
hj.beckers＠kreis-steinfurt.de
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Tom.Stewart＠landsend.com