How know databases connected with Derby networkServer

2014-01-24 Thread AirDT
Hello everyone, 

I run a NetworkServer that allows multiple users to connect to multiple
Derby database. 
How do I know databases connected at a given moment ?
In order to :
- Have knowledge of potential users connected to each connected dataBase
- Shutdown these databases in order to remove them without shutDown derby. 
-...

Any help would be appreciated.
Thanks in advance

AirDT



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Re: How know databases connected with Derby networkServer

2014-01-24 Thread Rick Hillegas

On 1/24/14 2:32 AM, AirDT wrote:

Hello everyone,

I run a NetworkServer that allows multiple users to connect to multiple
Derby database.
How do I know databases connected at a given moment ?
In order to :
- Have knowledge of potential users connected to each connected dataBase
- Shutdown these databases in order to remove them without shutDown derby.
-...

Any help would be appreciated.
Thanks in advance

AirDT



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http://apache-database.10148.n7.nabble.com/How-know-databases-connected-with-Derby-networkServer-tp136724.html
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Hi AirDT,

I don't believe that Derby tracks this information anywhere. However, 
you might be able to hack this kind of tracking into 
org.apache.derby.impl.jdbc.EmbedConnection.


Hope this helps,
-Rick


Re: How know databases connected with Derby networkServer

2014-01-24 Thread Bryan Pendleton

How do I know databases connected at a given moment ?
In order to :
- Have knowledge of potential users connected to each connected dataBase
- Shutdown these databases in order to remove them without shutDown derby.


You didn't say what platform you are on, but one simple way is to use
a tool like 'lsof' (on Linux) or 'ProcessExplorer' (on Windows) to
determine what files are open by your Network Server.

In particular, the lock files are important.

thanks,

bryan



Re: How know databases connected with Derby networkServer

2014-01-24 Thread Peter Ondruška
Emory is cheap nowadays. Just run each database in separate JVM. If you are on 
Linux or AIX I would recommend IBM Java with class sharing..

Peter

 On 24 Jan 2014, at 11:32, AirDT cont...@solgt.fr wrote:
 
 Hello everyone, 
 
 I run a NetworkServer that allows multiple users to connect to multiple
 Derby database. 
 How do I know databases connected at a given moment ?
 In order to :
 - Have knowledge of potential users connected to each connected dataBase
 - Shutdown these databases in order to remove them without shutDown derby. 
 -...
 
 Any help would be appreciated.
 Thanks in advance
 
 AirDT
 
 
 
 --
 View this message in context: 
 http://apache-database.10148.n7.nabble.com/How-know-databases-connected-with-Derby-networkServer-tp136724.html
 Sent from the Apache Derby Users mailing list archive at Nabble.com.