Duplicate MYSQL Process group instance created

[VenkataSainath]

We are observing duplicate MYSQL Process group instance creating for some time with Shutdown mode and then we are getting false alerts.

Is there specific reason to detect Duplicate process group instance for some time? And how to remove this?

[JoseRomero]

Hi @VenkataSainath ,

First, please check if the duplicate process group instances have different PIDs (Process IDs). These might be different because the new instance is a different process following a restart or shutdown of the MySQL process.

When the first instance shuts down, Dynatrace detects it as unavailable and may create a problem if you have configured alerting for this process group.

To avoid false alerts, you can adjust your anomaly detection rules for this process group. This way, if you are certain that these process groups should operate with only one instance, you can prevent false alerting.

DEFAULT OPTION:

MY RECOMENDATION:

[VenkataSainath]

Hi @JoseRomero ,

Yes, I can do that But why other process got detected and it always in shutdown mode.
And the process uptime is more than 16days and not restarted also. 

[JoseRomero]

Hi @VenkataSainath ,

Can you check if you have deep monitoring for all of your process and no one of then are excluded of monitoring?

[VenkataSainath]

@JoseRomero , The Server has monitoring with Infra only monitoring mode

[JoseRomero]

Hi Venkata,

I'm back from my vacation!
Hahaha

I recommend creating a case with Dynatrace One support if the platform is not working as expected.

[Julius_Loman]

@VenkataSainath most likely this is due to multiple processes running. It must not be a MySQL server process, but a other MySQL process falling into the same process group. Be sure to check metadata for each process in the process group and compare.

[Esam_Eid]

I think it’s related to host id if its windows server. You need to create host id using the oneagentctl commands

Regards

Esam