Re: Relationship between JDBC Connections, Statements, ResultSets and open data paths

["Timur Evdokimov" <timur@xxxxxxxxx>]

Hello Fred,

It's great that people from IBM are with us :)

Can you please shed light on the following behaviour I observed recently.

I ran a stress-test, which was executing thousands of queries through JDBC
to DB/2 at AS/400 box.
Database connections were pooled, i.e. not closed at all.
When I watched particular database connection job, it had a number of open
files.
Over time, the number grew up to nearly 100, then in a few seconds went down
to ~10, then grew back to nearly 100 again, then dropped back... and so on,
all the way.

Is it a sort of "garbage collection"?

Regards,
Timur

> If you close the statement, its ResultSet(s) is/are closed.
>
> Fred A. Kulack - IBM eServer iSeries - Enterprise Application Solutions
> ERP, Java DB2 access, Jdbc, JTA, etc...
> IBM in Rochester, MN  (Phone: 507.253.5982   T/L 553-5982)
> mailto:kulack@us.ibm.com   Personal: mailto:kulack@magnaspeed.net
> AIM Home:FKulack  AIM Work:FKulackWrk
> MSN Work: fakulack@hotmail.com