On 9/9/13 7:05 AM, Yoel Spotts wrote:
Rick,

Thanks for the quick response and help. If that is the case (i.e. there is a 
race condition possibility), why would you recommend shutting down the engine 
first?
Hi Yoel,

You can do it either way. Bringing down the engine first minimizes the risk that your application will exit without gracefully parking the engine. But if you need to handle the race condition, then bring down the server first.

Regards,
-Rick
Yoel

-----Original Message-----
From: Rick Hillegas [mailto:[email protected]]
Sent: Monday, September 09, 2013 10:02 AM
To: [email protected]
Subject: Re: Network Server startup and shutdown

On 9/9/13 6:56 AM, Yoel Spotts wrote:
Rick,

Interesting. Thanks for the info.

Can you help me understand this a little better: if I shutdown the engine (by calling 
DriverManager.getConnection("jdbc:derby:;shutdown=true")), won't the network service be 
"orphaned" (i.e. a network service without an underlying engine -- even if for a only a 
short period of time)?
Yes, that's true. If you are worried about that race condition, you can bring 
the server down first and then the engine.

Hope that's more useful for you,
-Rick
Thanks

Yoel

-----Original Message-----
From: Rick Hillegas [mailto:[email protected]]
Sent: Monday, September 09, 2013 9:43 AM
To: [email protected]
Subject: Re: Network Server startup and shutdown

On 9/4/13 10:27 AM, Yoel Spotts wrote:
I am starting a network server in addition to an embedded server. I'd
like to do this programmatically, by calling

NetworkServerControl server = new NetworkServerControl();

server.start (null);

as described here:
http://docs.oracle.com/javadb/10.5.1.1/adminguide/tadminconfig814963.
h
tml

My question is: should I start the network server first or the
embedded server?

Hi Yoel,

This can be a little puzzling for people who are familiar with non-embedded 
databases. I think what you mean is the network server and the embedded engine. 
There is no such thing as an embedded server. The network server boots the 
derby engine as needed. You don't need to boot the engine.
And when shutting down, which one should I shutdown first?

I would recommend bringing down the engine first and then the server.

Hope this helps,
-Rick
Thanks!

Yoel Spotts



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