RE: JDBC performance issues after moving to Java 8

Yes, I can confirm this with field experience as well.  


--
Jim Oberholtzer
Agile Technology Architects


-----Original Message-----
From: JAVA400-L [mailto:java400-l-bounces-Zwy7GipZuJhWk0Htik3J/[email protected]] On Behalf Of Tim
Rowe
Sent: Friday, July 06, 2018 8:46 AM
To: java400-l-Zwy7GipZuJhWk0Htik3J/[email protected]
Subject: Re: JDBC performance issues after moving to Java 8

   In these cases, I have often seen issue with the Network configuration
   cause this. Most often, its a DNS server that is not working correctly,
   that is causing the code to sit on timeouts...

   Tim

   Tim Rowe, timmr-r/[email protected]
   Business Architect Application Development & Systems Management for IBM i
   IBM i Development Lab, Rochester, MN
   (507) 253-6191 (Tie) 553-6191

   http://www-03.ibm.com/systems/power/software/i/are/index.html



     ----- Original message -----
     From: Mark Murphy <[email protected]>
     Sent by: "JAVA400-L" <java400-l-bounces-Zwy7GipZuJhWk0Htik3J/[email protected]>
     To: Java Programming on and around the IBM i <java400-l-Zwy7GipZuJhWk0Htik3J/[email protected]>
     Cc:
     Subject: JDBC performance issues after moving to Java 8
     Date: Fri, Jul 6, 2018 8:01 AM

     We have a Java application running on IBM i v7.1. It was working fine
     with
     Java 6, but when we moved to Java 8 in preparation for an upgrade to
     v7.3,
     the program started taking over an hour to run. As far as I know, the
     only
     change was to move to Java 8. We are using the 32 bit JVM for both Java
     6
     and Java 8.

     Any ideas on where to look for issues? We are not getting any errors
     that I
     know of, and everything is running through properly. It just takes over
     an
     hour for the program to run now when it used to take minutes. The
     application is using JDBC to communicate with a MS SQL Server. It is
     basically synchronizing data for another process that runs on Windows.
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