Community
- Command Central
- MVP Program
- Monthly Mission
- Blogs
- Groups
- Events
- Media Vault
Products
- Observability
- Network Management
- Application Management
- IT Security
- IT Service Management
- System Management
- Database Management
Content Exchange
- SolarWinds Platform
- Server & Application Monitor
- Database Performance Analyzer
- Server Configuration Monitor
- Network Performance Monitor
- Network Configuration Manager
- SQL Sentry
- Web Help Desk
Free Tools & Trials

Fast Polling

I understand that in Orion you set the Node Warning Level which is a period of time that following a failed ping the node will be marked in a Warning state versus a down state. According to the documentation, when a node is in the Warning status Orion continually performs "Fast Polling" to check the status of the node.

What I have not been able to find is what the Fast Polling interval is. When Fast Polling is performed, what is the interval, how often does it occur?

Find more posts tagged with

Accepted answers

Karlo.Zatylny

Hi,

There is a setting that you can use to increase the number of times we will try to ping a device on a status poll by default. Meaning that even before fast polling kicks in, we will try to ping the device X number of times to make sure we didn't just maybe miss a ping because of network load.

In your Settings table of your Orion database, you may or may not have the entry:

SWNetPerfMon-Settings-Response Time Retry Count

This value, even if not in the database defaults to 1. Meaning we will try to ping the device once before failing and moving into fast poll if necessary. If you were to update this number "CurrentValue" to 3, then if we were polling the device and the first ping failed, we would try again, and if that one failed, again before going into fast poll mode. If any one of the 3 succeed, then we immediately just mark the device as up for that poll interval. There is no time delta between these pings. If one fails, another is tried as fast as the code can run.

You probably don't need to change this number unless you are seeing a lot of your nodes go to warning because your network often drops ICMP packets.

Hopefully, this helps even more.

All comments

borgan

I have always understood the interval to be 10 seconds. Any disagreements?

byrona

I have always understood the interval to be 10 seconds. Any disagreements?

I would love to get confirmation on this. Also, do the Fast Poll pings get logged into the database in such a way that they are then used to calculate against availability? I would assume so but once again, I am looking for some solid confirmations.

Karlo.Zatylny

Hi,

Here is perhaps a more detailed explanation than what you are looking for.

On a status poll orion performs an ICMP ping operation. If that ping fails then we set the Node to Warning Status and begin Fast Poll. By default, we will poll in Fast Poll mode for 120 seconds and send a ping every 10 seconds. (120 seconds configurable from your Polling Settings page - Node Warning Level). If after the 120 seconds, all of the pings sent every 10 seconds have failed, then we will mark the node as Down. So on average it will take 13 failed pings to set a node to the Down status.

Fast Poll pings are not logged against availability.

There are more settings to ping more than once on the initial status poll, too.

byrona

Karlo

This isn't more than I was looking for, this is exactly what I was looking for, thanks!

As a followup, do do you mean when you say the following...

There are more settings to ping more than once on the initial status poll, too.

cahunt

But what are the settings to get back to that UP Status? What polling interval is kept until node is back UP - and what is the ping sequence and timing to confirm the UP status once that initial UP ping gets a response?