Reboot Servers in sequence and check the respective URLs.

[Saju Mathew]

 

Hi All,

 

I have a requirement.

 

I have to reboot three servers, say. x, y and z and have to check URL say, a, b and c.

 

Requirement is.

Reboot server 'x' ;

Check URL 'a' after the reboot for availability; 

If (URL 'a' is available). go to step 2

Else

Generate an Alarm. Stop the reboot sequence here

 

Step 2

Reboot server 'y'

Check URL 'b' after the reboot for availability; 

If (URL 'b' is available). go to step 3.

Else

Generate an Alarm. Stop the reboot sequence here

 

Step3

Reboot server 'z'

Check URL 'c' after the reboot for availability; 

If (URL 'c' is available). End with an alarm as successful.

Else Generate an Alarm.

 

End.

 

Hope to find a solution to this. All option are welcome.

 

 

Thank You!

[Tgentilhomme]

Hi,

 

When you say reboot the server, do you mean reboot the Nimsoft Agent or reboot the Physical Machine/VM ? (No just to be sure).

 

 

That's seem like a challenge (but i like challenge). That's my proposition : 

 

- Create a logmon profile to execute a script (to reboot the server) when a log file is updated

- Update this text file with a callback.

- Check for http (with timeout threshold defined) => Else create an alarm! 

 

Step back to 1 for a new robot.

 

A another solution is to install a kind of probe capable to send instructions to the system (but constraint are different).

 

Anyway, what you want to do sound very dangerous for many reason  

 

Best Regards,

Thomas

[Saju Mathew]

Hey Thomas,

 

These are VM reboots we are speaking about.

Can I capture the first reboot alert and execute a script using nas probe? Is this possible?

 

Regards,

Saju Mathew

[Tgentilhomme]

Hi,

 

Depending on what you want to do with lua NAS Scripting.But dont forget : If you keep alive a lua script in NAS, alarm processing is stopped (so the NAS stop his work).

 

Best Regards,

Thomas

[Saju Mathew]

Oh!! Yeah I missed that. That is an issue then.

 

We have powershell script as well for that. I was wondering If I can do the sequence with help of Nimsoft. So, had this query.

 

 

Regards,

Saju Mathew

[Tgentilhomme]

Hi,

 

Personally i dont like bash or powershell (that's such a pain to parse stdout for every requests etc..). I have build my own Probe Utility interface with NodeJS (with auto-parsing of stdout). 

 

GitHub - UIM-Community/NodeUIM: CA UIM Probe Utility asynchronous binding 

 

const nodeuim = require('nodeuim');

setImmediate( async function() {

    const PDS = await nodeuim.Request({
        callback: 'gethubs',
        timeout: 1500,
    });
   
    PDS.get('hubslist').forEach( ({name: hubName}) => {
        console.log(`Hubname => ${hubName}`);
    });

});

 

Best Regards,

Thomas

[Tgentilhomme]

Hi Saju,

 

Did you succeed to answer the need ?

 

Best Regards,

Thomas

[Saju Mathew]

Hi Thomas,

 

Thank You for the input and help. We came up with a Powershell script to do the same.

 

Reagrds,

Saju Mathew