Plugin Installation and Reported State

[chadmichael]

I'm having trouble understanding why my plugin installation reports a different status now and then.  After installing the .dar via the ui, and restarting the service, I see plugins listed variously as:

1) Installation OK

2) No installation required

3) Will perform installation at next server startup.

So, I'm trying to understand these states in light of the plugin installation process outlined in the "Developing Plug-Ins with VMware vCenter Orchestrator" doc.  It describes the process as:

1) upload the dar via the plugins tab

2) Click "Apply Changes"  --  "configuration server may restart"    WHY?

3) Configure plugin, and "Apply Changes"

4) Bounce the vco service ( not the configuration server )

What leads to these different states? 

What is "installation" and why is it sometimes needed and sometimes not?

[igaydajiev]

3) Will perform installation at next server startup.

Means that restart of vCO server is required to preform plugin installation. After restartof the vCO server this status should change to "Instalation OK" if after restart of the service this state is preserved means that there is issue installing the plugin and you can check the server.log file

1) Installation OK.

   Means plugin is successfully installed.

2) No installation required

     Means you don't need to restart vCO server.

When installing the plugin :

1. Uploading the .vmoapp / .dar file

2. unzipping the .dar file

3. Restart vCO Server - at that stage if there are workflows/actions/... packaged in the plugin they get installed.

[chadmichael]

Can you also explain more about what "installation" means?  I'm installing a plugin, and it says "installation not required"  . . . how does that make sense?