Service deployment

[Mikael <mi...@telia.com>]

Hi!

I have a number of services running (cluster singeltons) and each node 
has java code to start them up (they are configured from information in 
a database), so each node tries to start the services when they are 
started, should I check if the service is already running or something 
or will the service deploy method handle all that for me when a number 
of nodes are started and they all try to deploy the same services.

Mikael

Re: Service deployment

[Denis Mekhanikov <dm...@gmail.com>]

Hi Mikael!

You don't need to check whether a service is already deployed.
Ignite will handle such collisions, but only if you don't try to deploy the
same service multiple times with different configurations. Otherwise you
will get an exception.
If configurations match, then consecutive deployments won't take effect,
and service will continue its work.

Denis

пн, 27 нояб. 2017 г. в 14:44, Mikael <mi...@telia.com>:

> Hi!
>
> I have a number of services running (cluster singeltons) and each node
> has java code to start them up (they are configured from information in
> a database), so each node tries to start the services when they are
> started, should I check if the service is already running or something
> or will the service deploy method handle all that for me when a number
> of nodes are started and they all try to deploy the same services.
>
> Mikael
>
>
>