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From "David Van Couvering (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-293) Correlate client connection with embedded connection
Date Mon, 16 May 2005 20:52:06 GMT
Correlate client connection with embedded connection
----------------------------------------------------

         Key: DERBY-293
         URL: http://issues.apache.org/jira/browse/DERBY-293
     Project: Derby
        Type: Improvement
    Versions: 10.1.0.0    
 Environment: N/A
    Reporter: David Van Couvering
    Priority: Minor
     Fix For: 10.1.0.0


There should be a way for someone to correlate a given embedded connection with its matching
network client connection, if such a client connection exists.  

See 

http://article.gmane.org/gmane.comp.apache.db.derby.devel/3748

and

http://article.gmane.org/gmane.comp.apache.db.derby.devel/3942

for some background info on how to get useful information out of the DRDA protocol
stream to accomplish this.

This could be done either by modifying the toString() method of an embedded
connection to show its associated network client connection information or (my
preference) include this information in the proposed Connection VTI (see DERBY-292).  I am
worried that if we use toString() for this, the output will be overly long and complicated;
also, over a period of time the same embedded connection may be associated with multiple client
connections, resulting in a changing toString() value for the embedded connection.  This seems
problematic if we are intending toString() to uniquely identify a connection for the lifetime
of the connection -- this would be a good goal to have as it would enable us to do some useful
debugging using the VTIs.

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