Question about speed issues using JSP/JavaBeans/JRun & SQL Server

Hi. I am a developer for a small software company. About 2 years ago we started development on an E-Commerce platform written in Java. It has administrative tools that are actual applications and also web admins that are jsp pages.
Every JSP page we have calls java beans, and these java beans then pull information from or put information into our database.
Our database is SQL server 7.0 and is a relational DB. So, for instance, we have about 100 items, with 15 features each, 3 images, and so its a pretty small database, but it has quite a few rows.
Now, to pull information straight from our database and spit it out on a jsp page, it takes about 2 seconds, to put information into the database (saving a survey), it takes about 5-10 seconds. To me, this seems like a VERY long time just for a page to load. We have about 7 websites all running on the same server with different instances of JRun 3.0, and that same server is running SQL Server and IIS 5.0.
Now, without posting our thousands of lines of code, can anyone help me try to figure out where our bottleneck might possibly be? Any help or suggestions would be greatly appreciated
Anyone that has done something similar, what was your database access time and what did you use to display your pages? (Jrun with IIS or what)
I'm the last person here (everyone else jumped ship and I wasn't here for the design aspect of this project) and before we bring in a consultant to try to work on this, I was hoping that some of you here could share your insight on any similar projects you may have worked on.
Thank you very much.

Make sure that your JDBC code is using connection pooling. You would know this since you would have to set up a DataSource in the JMC.
Then instead of going through the DriverManager, you would get your Connection from the DataSource object via the InitialContext object.
If you're already using Connection pooling, verify that the SQL statements are as efficient as possible. That is, make sure they are using indexes in the DBMS. The SQL tracer tool can show any bad performing SQL.
Lastly, re-index any tables if they are not reindexed on a regular basis. How often you re-index will depend on how often the data changes.
Good luck ...

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Question about openning files using SDK 10.

I have written a Plug-In for SDK 9 that works wonderfully. One of the functions is for the user to be able to page (Next/Previous) between PDF files on our server. This functionality now longer works without crashing Acrobat 10. All I am doing is creating the URL path to the next/previous PDF, creating a CustomFileSys with the path and calling AVDocOpenFromFile.
Does this no longer work with Acrobat 10 SDK?
Thanks!

Should work fine, AFAIK.
For this level of issue, I would open a formal support request with developer support.
From: Adobe Forums <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Date: Mon, 10 Oct 2011 08:51:08 -0700
To: Leonard Rosenthol <[email protected]<mailto:[email protected]>>
Subject: Question about openning files using SDK 10.
Question about openning files using SDK 10.
created by Greggars<http://forums.adobe.com/people/Greggars> in Acrobat SDK - View the full discussion<http://forums.adobe.com/message/3963065#3963065

Design question about when to use inner classes for models

This is a general design question about when to use inner classes or separate classes when dealing with table models and such. Typically I'd want to have everything related to a table within one classes, but looking at some tutorials that teach how to add a button to a table I'm finding that you have to implement quite a sophisticated tablemodel which, if nothing else, is somewhat unweildy to put as an inner class.
The tutorial I'm following in particular is this one:
http://www.devx.com/getHelpOn/10MinuteSolution/20425
I was just wondering if somebody can give me their personal opinion as to when they would place that abstracttablemodel into a separate class and when they would just have it as an inner class. I guess re-usability is one consideration, but just wanted to get some good design suggestions.

It's funny that you mention that because I was comparing how the example I linked to above creates a usable button in the table and how you implemented it in another thread where you used a ButtonColumn object. I was trying to compare both implementations, but being a newbie at this, they seemed entirely different from each other. The way I understand it with the example above is that it creates a TableRenderer which should be able to render any component object, then it sets the defaultRenderer to the default and JButton.Class' renderer to that custom renderer. I don't totally understand your design in the thread
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=680674
quite yet, but it's implemented in quite a bit different way. Like I was saying the buttonClass that you created seem to be creating an object of which function I don't quite see. It looks more like a method, but I'm still trying to see how you did it, since it obviously worked.
Man adding a button to a table is much more difficult than I imagined.
Message was edited by:
deadseasquirrels

How to use JSP in apache web server

hi all,
can anybody tell me how to use JSPs in Apache Web Server.
Thanks
sir

You would need a servlet container to run Servlets and JSPs. And Apache's Tomcat is one such free container available. Download Tomcat from http://jakarta.apache.org and integrate with Apache WS
HTH

(new?) performance problem using jDriver after a Sql Server 6.5 to 2000 conversion

Hi,
This is similar - yet different - to a few of the old postings about performance
problems with using jdbc drivers against Sql Server 7 & 2000.
Here's the situation:
I am running a standalone java application on a Solaris box using BEA's jdbc driver
to connect to a Sql Server database on another network. The application retrieves
data from the database through joins on several tables for approximately 40,000
unique ids. It then processes all of this data and produces a file. We tuned
the app so that the execution time for a single run through the application was
24 minutes running against Sql Server 6.5 with BEA's jdbc driver. After performing
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Sql Server 2000 version. I ran the app and got an alarming execution time of
5hrs 32 min. After some research, I found the problem with unicode and nvarchar/varchar
and set the "useVarChars" property to "true" on the driver. The execution time
for a single run through the application is now 56 minutes.
56 minutes compared to 5 1/2 hrs is an amazing improvement. However, it is still
over twice the execution time that I was seeing against the 6.5 database. Theoretically,
I should be able to switch out my jdbc driver and the DBMS conversion should be
invisible to my application. That would also mean that I should be seeing the
same execution times with both versions of the DBMS. Has anybody else seen a
simlar situation? Are there any other settings or fixes that I can put into place
to get my performance back down to what I was seeing with 6.5? I would rather
not have to go through and perform another round of performance tuning after having
already done this when the app was originally built.
thanks,
mike

Mike wrote:
Joe,
This was actually my next step. I replaced the BEA driver with
the MS driver and let it run through with out making any
configuration changes, just to see what happened. I got an
execution time of about 7 1/2 hrs (which was shocking). So,
(comparing apples to apples) while leaving the default unicode
property on, BEA ran faster than MS, 5 1/2 hrs to 7 1/2 hrs.
I then set the 'SendStringParametersAsUnicode' to 'false' on the
MS driver and ran another test. This time the application
executed in just over 24 minutes. The actual runtime was 24 min
16 sec, which is still ever so slightly above the actual runtime
against SS 6.5 which was 23 min 35 sec, but is twice as fast as the
56 minutes that BEA's driver was giving me.
I think that this is very interesting. I checked to make sure that
there were no outside factors that may have been influencing the
runtimes in either case, and there were none. Just to make sure,
I ran each driver again and got the same results. It sounds like
there are no known issues regarding this?
We have people looking into things on the DBMS side and I'm still
looking into things on my end, but so far none of us have found
anything. We'd like to continue using BEA's driver for the
support and the fact that we use Weblogic Server for all of our
online applications, but this new data might mean that I have to
switch drivers for this particular application.Thanks. No, there is no known issue, and if you put a packet sniffer
between the client and DBMS, you will probably not see any appreciable
difference in the content of the SQL sent be either driver. My suspicion is
that it involves the historical backward compatibility built in to the DBMS.
It must still handle several iterations of older applications, speaking obsolete
versions of the DBMS protocol, and expecting different DBMS behavior!
Our driver presents itself as a SQL7-level application, and may well be treated
differently than a newer one. This may include different query processing.
Because our driver is deprecated, it is unlikely that it will be changed in
future. We will certainly support you using the MS driver, and if you look
in the MS JDBC newsgroup, you'll see more answers from BEA folks than
from MS people!
Joe
>
>
Mike
The next test you should do, to isolate the issue, is to try another
JDBC driver.
MS provides a type-4 driver now, for free. If it is significantly faster,
it would be
interesting. However, it would still not isolate the problem, because
we still would
need to know what query plan is created by the DBMS, and why.
Joe Weinstein at BEA
PS: I can only tell you that our driver has not changed in it's semantic
function.
It essentially send SQL to the DBMS. It doesn't alter it.

Can we use different Databases (Oracle & SQL Server) in one report?

Post Author: venki5star
CA Forum: .NET
Hi there.
Can we use different databases (Oracle & SQL Server) in a same report?
If possible how?
Another question,
Can we change the Provider Name at runtime of the given report. If so the above question is useless...
Thanks in Advance.

I tried this using Oracle Provider for OLEDB (the one that supplied by Oracle Client) and Crystal Reports 9. you can drag the column into designer but the image does not appear in preview.
I guess it's because CR does not recognized it as image, and there are no information that the blob data is an image at all.

How To Use Reporting Services On SQL Server 2000 ?

Hi all .
Today , I has a issue .
Normal , if the customer use SQl Server 2005 , it is no proplem , so if use SQL Server 2000 , Now , I want to use Reporting services on SQL Server 2000 , but , I am searching on Internet , so I know , if I want to use SQL 2000 reporting server , I must have license of SQL server 2000 .
is Every body idea for this issue ? .
Please help me .
Thanks alot .

Ok ,anyway thanks alot ,.

Using DB Link for SQL Server

Hi All,
When I query the SQL server table from Oracle using DB Link, it works fine for any table:
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But when I try to query specific columns like
Select test.status from testtable@DBLINK test
then it gives me error ORA-00904: "test.Status invalid Identifier", I can see this particular column when I query the testtable for all of the columns.
I don't know what to do.
Thanks

You need to use quoted names. SQL Server data dictionary stores names in same case they were entered while Oracle in upper case. So when you issue
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Using Ranking on MS SQL Server 2005

Hello,
We are on BOXI3.1 base version and have a universe on top of MS SQL Server 2005.
My question is regarding use of rank functions. BO guides state that
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it. If this is not the case, the Add a database ranking button is disabled on
the Query Panel toolbar. Databases that support ranking are Oracle, DB2,
Terradata and Redbrick.
So SQL Server is not in the list. However the add database ranking button is enabled on
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Is there any universe parameter i need to enable to use ranking? Has any-one mangaged to
use ranking functionality with SQL Server 2005.
Thanks in advance.

Hi Bashir Awan,
When we create this Object (using your example) at Universe level is the ranking hardcoded ?
My questions is, say i have Product object (with values A, B, C, D, E), and sales aggregated (10, 20, 30, 40, 50, 60, 70, 80, 90, 100)
Say the table is as follows
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Note: * represents Oversees sales outside US
Case 1: Now when we rank whole data to select top 3 we should get (E, D, C in Desc order)
Case 2: Now if I apply prompt on Country of sales as US will I get (E, B, D) or is it still (E, D, C as earlier).
Case 3: Similarly if I apply prompt on Product (no prompt on Country) in the filter pane and select (A, D, E) will my results show (E, D, A) or (E, D) as the value of A may be restricted due to ranking formula based on sales at Universe level.
I am sorry I may be asking a very basic question. Thanks
Sudhir.

This driver is locked for use with embedded applications - SQL Server

Hello guys,
Background:
I developed an application using JSC2 with MS SQL Server 2000 as the database and Sun Application Server PE 8 as App Server. During development, I am able to deploy and test it. But as soon as I've installed Sun Application Server PE 8 on our Production Server, exported my app there and tried to execute it, I get the error
"This driver is locked for use with embedded applications".
I just wanna ask, though I've seen other threads saying that the only solution is to buy the EE or SE of Sun App Server, isn't there really any work-around with this?
Thanks very much for your help.

OK, that is the same setup we have (Creator built application running with MS SQL Server).
I wrote a tutorial talking about integrating Creator with Spring. In it you will find out how to use SQL Server with a Creator built app running on the Platform Edition. That tutorial can be found here: http://swforum.sun.com/jive/thread.jspa?threadID=52657&tstart=15
In short, look to jTds.
Hope this helps.

Error when using Oracle Migration WorkBench (Sql Server 2k to Oracle 8i)

I'm trying to migrate a Sql Server 2k database to an Oracle 8i schema using OMWB. After using BCP to collect metadata information on the source database, I tried to capture the source data model and got a "Capture aborted" message on the progress screen (even though then it appears a dialog window reporting "0 errors and 0 warnings", funny!). Down there is the error log OMWB generated. After reading some posts, I changed some columns of the OMWB dictionary that holds the source database name, but still got the same error. If someone can enlighten me on this toppic, I'd greatly appreciated it.
Here's the error log of OMWB:
** Oracle Migration Workbench
** Production
** ( Build 20050629 )
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** user language: es
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** user timezone:
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** java vendor: Sun Microsystems Inc.
** o.s. arch: x86
** o.s. name: Windows 2000
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..\lib\boot.jar
** Started : Fri Feb 23 17:18:48 GMT-03:00 2007
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With the Partitioning option
JServer Release 8.1.6.0.0 - Production
Repository Connection URL: jdbc:oracle:thin:@ServerCms:1521:sigcewbc
** The following plugins are installed:
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** Microsoft SQLServer 2000 Plugin, Production Release 10.1.0.4.0
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** Microsoft SQLServer 7.0 Plugin, Production Release 10.1.0.4.0
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** Shutdown : Fri Feb 23 18:00:50 GMT-03:00 2007

Duplicate thread
Error when using Oracle Migration WorkBench (Sql Server 2k to Oracle 8i)

Issue while connecting to MS SQL Server 2008

Hi everyone,
I have not seen any thread that gives me a clue to my problem.
I have OBIEE 10.1.3.4.0 on Windows.
I have created an ODBC3.5 Datasource to a SQL Server 2008 and the test connection is successful.
I have also imported the tables from the SQL Server 2008 into the Physical Layer of the OBIEE Administration tool. However after check-in, my problem begins trying to do an Update Row Count with the following Error message:
NQODBCSQL_STATE: HY000nQSError: 10058 A general error has occurred.
nQSError: 43093 An error occured while processingthe EXECUTE PHYSICAL statement.
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Any suggestion or pointer will be greatly appreciated.

Reading your post Issue in connecting to MS SQL Server 2008 I guess this thread here can be closed.
Cheers,
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How to use OEM to moniter sql server 2000

Hi,
I need to learn How to use OEM to moniter sql server 2000.
Can anyone help me and give me some website or documents
to read?
So I can learn to do this job.
Thanks.

See Note 115302.1 in Metalink.oracle.com
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Questions about Indexing and Using an Indexing POA

Although I have only about 50 users, at least 15 of them have in excess of 100,000 messages in their accounts and the POA (version 7.0.2) is regularly slowing to a crawl. (I just know that plans for revolution are fomenting!) I have embarked on a campaign to reduce these accounts by archiving everything off to get mail accounts down to 3000 or fewer pieces. I have achieved user buy-in, but have worked on only a few users so far.
In another closely related thread, it was suggested to me that the PO speed issues relate to broken indexes. And I suspect that given so many messages, the indexes were never getting fully rebuilt with the default QF POA settings. I am trying to fix that situation in addition to reducing mail account sizes. So, I have set up a second POA on another server and dedicated it to the indexing task. The /qfinterval is set for 1 hour, other /qf switches at default. The POA-QF does no mail delivery, but it does do nightly user upkeep.
The POA-QF seems to be steadily working away and making progress at reducing the number of unindexed messages. However, I have questions about what I am seeing and what more I can do:
1. Is the progress I am seeing real progress? For example I have a user with over 100,000 messages to be indexed and every time I check the logs, the count drops by about 500 messages per hourly QF cycle. I assume that if I just let it keep running, it will eventually get caught up and fixed. Not only with this user, but with all the others as well. Will my patience (and theirs) be rewarded? Are there any gotchas I need to prepare for?
2. One user has recently had virtually all of her messages successfully moved to archive. I can see them in the Archive, and do not see them in the online account. However, now over a week later, QF still shows >130,000 items still left to index for that user. The POA-QF is making slow, steady progress reducing that number, but why is this user's QF count still so high? Does it just need more time, or is there something amiss for this user?
3. I may want to rebuild indexes for single users from scratch. I have seen the TID 3105742 which tells how to do this: Essentially you turn off mail delivery functions, and make some other switch changes to dedicate the POA to indexing for just a single user, and then you let the POA rebuild the indexes. The implication of that scenario is that the POA is now enjoying exclusive access to the user's databases.
If I want to use my secondary POA-QF to rebuild a user's index from scratch, does the main POA have to be offline and the user out of GWise? That is, Does the QF process require exclusive access in order to rebuild indexes from scratch?
Thanks for any thoughts or suggestions.
Peter Smick

pgsmick wrote:
> 1. Is the progress I am seeing real progress? For example I have a user with
> over 100,000 messages to be indexed and every time I check the logs, the count
> drops by about 500 messages per hourly QF cycle. I assume that if I just let
> it keep running, it will eventually get caught up and fixed. Not only with
> this user, but with all the others as well. Will my patience (and theirs) be
> rewarded? Are there any gotchas I need to prepare for?
Set this switch for this indexing POA - /qflevel=999 - this will index
everything in one run. It will take a long time, but with no qflevel switch you
are indeed only indexing 500 messages at a time, and if the user has that much
mail, it might never really catch up.
>
> 2. One user has recently had virtually all of her messages successfully moved
> to archive. I can see them in the Archive, and do not see them in the online
> account. However, now over a week later, QF still shows >130,000 items still
> left to index for that user. The POA-QF is making slow, steady progress
> reducing that number, but why is this user's QF count still so high? Does it
> just need more time, or is there something amiss for this user?
>
This is odd, because really the index count should drop to nothing, but with the
above switch this might get resolved as well.
> 3. I may want to rebuild indexes for single users from scratch. I have seen
> the TID 3105742 which tells how to do this: Essentially you turn off mail
> delivery functions, and make some other switch changes to dedicate the POA to
> indexing for just a single user, and then you let the POA rebuild the indexes.
> The implication of that scenario is that the POA is now enjoying exclusive
> access to the user's databases.
Not really - the POA is not enjoying exclusive access to the user's database,
the indexer is just avoiding an attempt to index anything else.
> If I want to use my secondary POA-QF to rebuild a user's index from scratch,
> does the main POA have to be offline and the user out of GWise? That is, Does
> the QF process require exclusive access in order to rebuild indexes from
> scratch?
No - QF never requires exclusive access. That said, you may find that an
extremely vigorous QF can cause slowdowns for the user.
Danita
Novell Knowledge Partner
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Few questions about file sharing using airport

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Yes.
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Question about speed issues using JSP/JavaBeans/JRun & SQL Server

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