On 09/09/2004 08:15 Tore Halset wrote:
> On Sep 8, 2004, at 16:00, Tom Lane wrote:
>
>> This is a smoking gun: your client *is* issuing cancel requests, whether
>> you know it or not. (Either that or some other process has magically
>> acquired the secret cancel key that was issued to your connection.)
>
> Thanks! I think I found the problem and a solution to it. The java
> framework reused Statement objects and issued a st.cancel() between every
> query performed with the Statement object. I just commented out the
> st.cancel() line and everything seems to work ok. I googled for others
> having the same problem and found this one:
>
> http://archives.postgresql.org/pgsql-jdbc/2003-09/msg00167.php
>
> Perhaps it is the same problem? Is this something that can be fixed in
> the jdbc driver or are PostgreSQL(+jdbc) doing the right thing here?
>
> Regards,
> - Tore.
Given that statement.cancel() should only be used to cancel a running
query, I think the problem is more in your framework's misuse of cancel()
rather than in the driver itself.
--
Paul Thomas
+------------------------------+-------------------------------------------+
| Thomas Micro Systems Limited | Software Solutions for Business |
| Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk |
+------------------------------+-------------------------------------------+
