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All interfaces being removed and then re-added automatically at random times throughout the day?

We've been seeing this behavior since upgrading to 10.2. There is no discernible pattern as far as I can tell. Sometimes it happens several times a day and then it may not happen for several days.

Any idea why this may be happening?

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npm_10_interface_add_remove

Accepted answers

All comments

tbell52

I'm having a similar issue on version 10.1.2 except it's not just inferfaces that are being removed and re-added.

danielleh

FunkBuddha/tbell--

I have this marked for the PM to take a look at.

Tbell, what other issues are you experiencing?

Thanks,
DH

mavturner

Based on the limited information here I suggest you two open support cases. I can't think of any known bug that would be causing this. You will definitely need to include diagnostics when you open the case.

Mav

mdriskell

Just curious do you have multiple polling engines? If you move a device from one poller to another the node and all interfaces will be removed from one and then re-added to the other. This is how it will present itself in the logs.

Just a thought.

billconti

I’m having the same problem and was just wondering if you got a solution on this.

tbell52

For me it's not interfaces that are removed and re-added. It's Virtual Memory, Physical Memory, and Disk Drives.

I only have one Polling Engine.

FunkBuddha

I ave a single polling engine now but when I migrated to my new poller I seem to remember having two temporarily but I fixed that somehow. I wonder if that could be the source of the issue.

yazandasouqi

The same is happening with my 10.1.1 // All interfaces removed and then all of them added again.

NPM service stops suddenly and this is very critical.

Any solutions yet for this issue??

tlwoodstx

Any resolution to this seeing the same issue on a 10.2 NPM box with 2 pollers.

This issue was most probably caused by unstable or slow database connection. We saw several cases in 10.1 and lower version where all interfaces or volumes or nodes we massively removed from poller. It was always caused by database or huge network latency.

In 10. 2 we made it more stable for these situations. Can you see this issue also on latest 10.2.2? If so, please open support ticket and I would love to look at it.

Thanks

billconti

I’ve opened a ticket with SolarWinds and so far this is the response that I’ve gotten.

“We had this issues before, in earlier versions as well. This is due to the fact that we had (and still have apparently) with the interface remapping. The interfaces are not actually deleted from the DB, but for the fact that the interfaces are not seen with the same index till the rediscovery is done, causes this kind of behavior.“

They are working on it and when I get further info I’ll pass it along.

billconti

Just a follow up on this I did try loading 10.2.2, yesterday, and came in this morning and I have 3,000 deletes and adds. My Case # is: 308523

billconti

I’ve been working with Solarwinds Support Engineer Radu Grigorescu and he gave me this suggestion and it seems to be working. All other events are reporting without a problem but the add / remove are not reporting.

1. Open Solarwinds Database manager

2. Expand the DB till you'll find the eventTypes table

3. Right click on it, and choose query table

4. Select the Read-Write Radio button and for the EventType 16 and 17 uncheck the Record box

This will configure Orion not to record interfaces added/removed.