How is uptime calculated for each OS?

[tbowen]

I am using “uptime of operating system” to show system uptime. How is that calculated for each OS?

[jgo]

On Windows windows the agents checks how long it’s been since the first process started on the OS instance.
On Linux/Nix/Mac the agent reads value from /proc/uptime.

[Brindha]

hi Can you tell me how you’re getting the uptime of computer via relevance

[vk.khurava]

here you go - uptime in Days

if (uptime of operating system < 0*second) then ERROR "0" else ((uptime of operating system) / day) of ((now - boot time of operating system) / day)

[Brindha]

@ vk.khurava,

I would like to use this relevance in the API like this,

https://bigfixservername:52311/api/query?relevance=(relevance to get the up time)

can you guide me how to attach the computer name with the relevance you mentioned

[vk.khurava]

@Brindha

I would like to use this relevance in the API like this,

Yes, you can do that but what I am understanding you dont have Uptime Retrieved property created, use above relevance & create one 1st after that try using below query in your API relevance.

Uptime of OS relevance

Break your code into pieces & test which one is creating issue. What I believe you dont have UPTIME property based on the other question you have posted & thats cause of relevance failure. Q: ((names of it, ids of it, operating systems of it, concatenation "|" of (ip addresses of it as string), ( concatenation "" of substrings separated by "," of it) of ( last report time of it as string), value of result from (bes property "Uptime in Days") of it) of bes computers whose ( name of it as lower…

[Brindha]

@vk.khurava,
In Production , I’ve seen one property for uptime and I tried it in API. It worked and gave the uptime in days, like this.
This is the screenshot for successful query

In dev env, I’ve created custom system property , I’m able to see the uptime in minutes for the servers in the console, but when I query the property in API again it is returning the same error given below.

[vk.khurava]

hufff you made it finally !!!

[Brindha]

yes with the help of you guys, but not sure why in dev env, it is not giving the output even when the output is properly coming in console