Re: Too many SET TimeZone and Application_name queries

Hi Adrian,

Thanks a lot for the response.

We are using JDBC Driver 42.2.8 along with the Tomcat Server on Java 8. As
part of application code, We are *not* setting timezone (or) application
names. One observation was, application was querying columns of the
datatype "timestamp without time zone" .

Regards, Amarendra

On Fri, Oct 11, 2019 at 7:33 PM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> On 10/11/19 4:49 AM, Amarendra Konda wrote:
> > Hi,
> >
> > In our test environment, it was observed that there are too many queries
> > were getting fired to the database server, even though they are not part
> > of the SQL query execution.
> >
> > And the number of queries that were coming to server are very high. Can
> > you please suggest on how to avoid these queries to the database server ?
>
> My guess is your application server/framework is setting the below.
> What are you using for above?
>
> >
> >
> > 2019-10-10 13:37:25 UTC:172.31.77.194(36920):
> > user1(at)new_unity_green1:[2549]:LOG: duration: 0.081 ms statement: *SET
> > application_name='PostgreSQL JDBC Driver';*
> > 2019-10-10 13:37:25 UTC:172.31.69.112(45682):
> > user1(at)new_unity_green0:[3545]:LOG: duration: 0.036 ms statement: *SET
> > TimeZone='UTC';*
> > 2019-10-10 13:37:25
> > UTC:172.31.77.194(36902):user1(at)new_unity_green1:[2112]:LOG: duration:
> > 0.177 ms statement: *SET TimeZone='Etc/UTC';SET
> > application_name='PostgreSQL JDBC Driver';*
> >
> >
> > *_Environment_*
> >
> > * PGBouncer 1.9
> > * JDBC Driver 42.2.8
> > * Java 1.8
> > * PostgreSQL 9.6.2 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.3
> > 20140911 (Red Hat 4.8.3-9), 64-bit
> >
> >
> > Application Server, pgBouncer and database server are all configured
> > with UTC only.
> >
> > =>show timezone;
> > TimeZone
> > ----------
> > UTC
> >
> > Thanks in advance,
> >
> > Regards, Amarendra
> >
> >
> >
> >
> >
> >
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>