Polling Engine down on Network Performance Monitor

Hello Folks,

I have a customer who is running Orion Network Performance Monitor v 8.1. They have recently upgraded from version 7.

After the upgrade, they seem to be having a problem with the Polling Engine shutting down. It would work fine for a few hours and then stop. Then the charts would start to update again several hours later from that minute so therefore all the data for past few hours would be missing. Another few hours and its starts all over again.

They never had that problem with version 7.5. I can not seem to figure out what could be causing it. I have updated their hotfixes up to 4 and nothing. They have reinstalled the software twice.

I can not find errors in any logs.

Any help would be appreciated.

Thank you.

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Accepted answers

Poketna

If you kill the NetPerfMonService (which by the way is running at 20% CPU utilization and not at max 1% as it usually does) with sysinternals utility, then when you relaunch it the polling Engine comes back on for a while....

All comments

aLTeReGo

Oh good, I'm not alone. I thought I was losing my mind. I've been having this exact same problem since upgrading to 8.1. I thought it was just me, but after spending all day trying to get it to work, I'm convinced it's not my environment. I've been monitoring the interface with a sniffer and I'm not seeing any ICMP or SNMP traffic when this occurs. I also see the NetPerfMonService.exe running at 40% CPU utilization, which is about 30% higher than usual.

Images seem to be broken on Thwack so here is a link to the screenshot

http://dug.servebeer.com/drop/pollerstat.jpg

I've re-run the configuration wizard, restarted all the services, run the database maintenance but so far nothing has helped. All of my graphs have stopped updating except when I restart the services, but even then they only update for an hour or so.

http://dug.servebeer.com/drop/badgraph.jpg

My database has 20+ GB of free space and the drive has 60GB of free disk space. I'm at a complete loss to explain this behavior. Anyone have any suggestions?

mark_wiggans

is this image there?

http://dug.servebeer.com/drop/badpoller.jpg

I can see the pollerstat.jpg

aLTeReGo

Sorry about that. I've updated the link above. It's also here.

http://dug.servebeer.com/drop/badgraph.jpg

Poketna

If you go into the Web interface, then into Admin, and then into Polling Engines, it will show polling engine down when its not logging.

I do not know how to restart it without rebooting the PC. When I try to end NetworkPerfMon task it freezes.

Problem is it goes UP and Down.... You go in and its Green and UP and logging, another time its red and Down and nothing is being logged.

There has to be some reason for this. The clients database is not big at all. Few hundred devices tops. And like I said he

never had this issue with ver 7.