Can you avoid committing the transaction on every item? Committing
takes more database effort than the initial update/insert, so batching
these within one transaction is highly advisable if it's possible.
Christian.
On 15-Jan-09, at 21:02 , James Sherwood wrote:
Hello,
It took 13 seconds to create the List with 14000 objects.
At 1 hour 45 minutes I was at 8600 records committing each one.
For the service, I haven't went that far in T5 yet so I will have to
look it
up.
If there was a way to save the whole list at once using the session
that
might be faster as well.
--James
-----Original Message-----
From: Angelo Chen [mailto:angelochen...@yahoo.com.hk]
Sent: January-15-09 9:33 PM
To: users@tapestry.apache.org
Subject: [Spam Rating:3.18] Re: T5 and hibernate slowing with more
records
Hi James,
I do not see any reason why it is slow, but would suggest to do
following:
1) try to put everything into a list of objects without saving to the
database, slow?
2) use a service to accept the list from #1, beging a transaction,
save,
commit, slow?
Angelo
James Sherwood wrote:
Hello,
I am using POI to take an excel file and put it into a Mysql database
using
hibernate.
I put a counter on the records going into the database and it
starts off
fast but then slows to over 15 seconds a record and I cannot figure
out
why.
My code is basically this:
Public class DatabaseDump{
@Inject
Private Session _session;
Public void onAction(){ //they hit the go button
Loop rows{
_session.beginTransaction();
Loop cells{
Fill
the
object from the cells
_session.save(Object);
}
_session.getTransaction().commit();
}
}
Everything works fine as in the database gets filled for the rows
it has
completed but gradually slows to a crawl and at around 2700 records
of
10500
records it's a record every 15 seconds.
I run the project under eclipse using Tomcat. The memory starts at
around
80mb and only goes up to around 110mb.
What am I doing wrong?
--James
--
View this message in context:
http://www.nabble.com/T5-and-hibernate-slowing-with-more-records-tp21483684p
21490838.html
Sent from the Tapestry - User mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
Christian Edward Gruber
christianedwardgru...@gmail.com
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
