dev@glassfish.java.net

Re: InstanceState service : getting the state of an instance

From: Anissa Lam <anissa.lam_at_oracle.com>
Date: Wed, 07 Jul 2010 10:16:27 -0700

Hi Vijay,

On 7/7/10 10:02 AM, Vijay Ramachandran wrote:
> For those CLI/module owners who want a way to get the state of an
> instance at any time :
>
> A new service, InstanceState, has been introduced. You can use this by
> doing the following in your code :
>
> @Inject InstanceState state;
>
> As of now, this service interacts with the command replication
> framework and, hence, the state of an instance changes from RUNNING to
> RESTART_REQUIRED only. Soon this service will interact with GMS
> subsystem and every other instance state change will be reflected.
What are other state that will be returned besides RUNNING, NOT_RUNNING
and RESTART_REQUIRED ?
Is this an enum ? where is this defined ?

thanks
Anissa.
>
> You may want to consider using this instead doing other forms of
> pinging an instance (like doing uptime / version / locations command)
> to see if an instance is alive.
>
> Let me know if you have any feedback / comments / issues with this.
>
> Vijay
>
>
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