Here's my dillema:

We are currently building a site with multiple machines to run our website 
and client sites as well.  I would like to run the postgres binary on 2 
machines concurrently to assist in load balancing.  $PGDATA will be kept on 
a RAID 1+0.    I need to know where postgres does it's row & table locking. 
 If it's done in memory, I've got some problems!  If it's done at or near 
the $PGDATA directory (which sounds like bad performance decision) that 
would be piece of cake.    Any advice or ideas on this issue would be 
GREATLY appreciated.

Thanks in advance!!

Larry


-- 
Lawrence M. Kagan
Allied Infosystems, Inc.
E-mail:    larry@alliedinfosystems.com
Web:       www.alliedinfo.com
Phone:     (954) 647-4600
Toll-free: (877) WEB-5888

Thu, 22 Feb 2001 10:43:58 +0000
"Lawrence M. Kagan" <larry@alliedinfosystems.com>
Where is locking done?
Hi,

i've tried to fetch a TIMESTAMP column from the database into a Java
Timestamp instance using the ResultSet.getTimestamp(int index) method.
Whenever i call this method i get some error message:

    User.findUser: Bad Timestamp Format at 19 in 2001-03-19 22:05:50.45+01
    Bad Timestamp Format at 19 in 2001-03-19 22:05:50.45+01
            at
org.postgresql.jdbc2.ResultSet.getTimestamp(ResultSet.java:447)
            at de.reswi.portal.User_DO.bind(User_DO.java:85)

If i try to bind this column to a java.sql.Date instance using
ResultSet.getDate(int index) everything works fine but i loose the precision
i need.

BTW: it's possible to write Timestamp type objects into the column. The
Method ResultSet.setTimestamp(int index, Timestamp stamp) works fine.

Ciao,
    - ralf


----- Original Message -----
From: "Lawrence M. Kagan" <larry@alliedinfosystems.com>
To: <pgsql-hackers@postgresql.org>
Sent: Thursday, February 22, 2001 11:43 AM
Subject: [HACKERS] Where is locking done?


> Here's my dillema:
>
> We are currently building a site with multiple machines to run our website
> and client sites as well.  I would like to run the postgres binary on 2
> machines concurrently to assist in load balancing.  $PGDATA will be kept
on
> a RAID 1+0.    I need to know where postgres does it's row & table
locking.
>  If it's done in memory, I've got some problems!  If it's done at or near
> the $PGDATA directory (which sounds like bad performance decision) that
> would be piece of cake.    Any advice or ideas on this issue would be
> GREATLY appreciated.
>
> Thanks in advance!!
>
> Larry
>
>
> --
> Lawrence M. Kagan
> Allied Infosystems, Inc.
> E-mail:    larry@alliedinfosystems.com
> Web:       www.alliedinfo.com
> Phone:     (954) 647-4600
> Toll-free: (877) WEB-5888
>


Mon, 12 Mar 2001 22:12:58 +0100
"Ralf Edmund Stranzenbach" <ralf@reswi.de>
JDBC handling of a Timestamp-Column