Slow rendering of JSP pages

Hello,
We are in the process of upgrading iPlanet 4.1 to 6.1Sp2. We have made enhancements to our code to support this effort, ie making our session bean serializable, adding the context dir in jsp to jsp calls.
Right now we are noticing slow rendering speed for jsp pages compared to iPlanet 4.1. It seems the page loads to a certain point, there is about 2-4 second delay before the page completes loading.
I've activated the monitor for performance statistics.
Here is the perf dump.
webservd pid: 8109
Sun ONE Web Server 6.1SP2 B04/07/2004 16:09 (SunOS DOMESTIC)
Server started Tue Jul 13 10:33:08 2004
Process 8109 started Tue Jul 13 10:33:08 2004
ConnectionQueue:
Current/Peak/Limit Queue Length 0/1/4096
Total Connections Queued 11
Average Queue Length (1, 5, 15 minutes) 0.00, 0.00, 0.00
Average Queueing Delay 0.15 milliseconds
ListenSocket group1:
Address http://10.201.1.53:80
Acceptor Threads 1
Default Virtual Server https-infa.net
KeepAliveInfo:
KeepAliveCount 2/256
KeepAliveHits 44
KeepAliveFlushes 0
KeepAliveRefusals 0
KeepAliveTimeouts 8
KeepAliveTimeout 30 seconds
SessionCreationInfo:
Active Sessions 2
Keep-Alive Sessions 0
Total Sessions Created 48/256
CacheInfo:
enabled yes
CacheEntries 27/1024
Hit Ratio 82/140 ( 58.57%)
Maximum Age 30
Native pools:
NativePool:
Idle/Peak/Limit 1/1/128
Work Queue Length/Peak/Limit 0/0/0
Server DNS cache disabled
Async DNS disabled
Performance Counters:
Average Total Percent
Total number of requests: 57
Request processing time: 1.2522 71.3780
default-bucket (Default bucket)
Number of Requests: 57 (100.00%)
Number of Invocations: 866 (100.00%)
Latency: 0.0003 0.0174 ( 0.02%)
Function Processing Time: 1.2519 71.3606 ( 99.98%)
Total Response Time: 1.2522 71.3780 (100.00%)
Sessions:
Process Status Function
8109 response service-dump
response service-j2ee

Here is a sample of jsp that renders partially. Each page renders to the same spot for that page, then there is a 5-10 second delay before the page finishes.
<-- Partial Page rendered -->
<HTML>
<HEAD>
<TITLE> FAST : Health Check</TITLE>
<link rel="stylesheet" type="text/css" href="/styles/table.css">
<script>

</script>
</HEAD>
<BODY BACKGROUND="/graphics/BACK25.jpg" BGPROPERTIES="FIXED">
<SCRIPT>
var menuBarOption = "";
</SCRIPT>
<SCRIPT>

</SCRIPT>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0>
<TR>
<TD width="85" height="600" bgcolor="#000066" VALIGN="TOP">
<BR>
<SCRIPT>
var publicSCRMOption = "PROCESSES";
</SCRIPT>
<TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0" ALIGN="LEFT">
<TR><TD height="15" NOWRAP>
<FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFFFFF">
<STRONG> FAST Menu </STRONG></FONT>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "WEBTRENDS")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/fast/fast.htm"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> WebTrends</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "PREMIER")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/fast/premierLogin.jsp"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> Premier</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "PROCESSES")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/faf.unix.servlet.GetHealthCheckServlet"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> Processes</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "EDISTATUS")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/faf.unix.servlet.GetEDIStatusServlet"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> EDI</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "SANIT<--- End of Partial Page --->
This is the complete page which take about 5-10 seconds
<--- Beginning of Completed Page --->
<HTML>
<HEAD>
<TITLE> FAST : Health Check</TITLE>
<link rel="stylesheet" type="text/css" href="/styles/table.css">
<script>

</script>
</HEAD>
<BODY BACKGROUND="/graphics/BACK25.jpg" BGPROPERTIES="FIXED">
<SCRIPT>
var menuBarOption = "";
</SCRIPT>
<SCRIPT>

</SCRIPT>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0>
<TR>
<TD width="85" height="600" bgcolor="#000066" VALIGN="TOP">
<BR>
<SCRIPT>
var publicSCRMOption = "PROCESSES";
</SCRIPT>
<TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0" ALIGN="LEFT">
<TR><TD height="15" NOWRAP>
<FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFFFFF">
<STRONG> FAST Menu </STRONG></FONT>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "WEBTRENDS")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/fast/fast.htm"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> WebTrends</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "PREMIER")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/fast/premierLogin.jsp"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> Premier</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "PROCESSES")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/faf.unix.servlet.GetHealthCheckServlet"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> Processes</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "EDISTATUS")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/faf.unix.servlet.GetEDIStatusServlet"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> EDI</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "SANITYCHECK")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/faf.unix.servlet.GetSanityCheckDiagnosticServlet"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG>Sanity Check</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "FASTBOOK")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/fast/fastBook.htm"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG> FAST Book</STRONG></SPAN></FONT></A>
</TD></TR>
<TR><TD height="15" NOWRAP>
<SCRIPT>
if (publicSCRMOption == "AWBREPORT")
     document.write(' <img border="0" src="/salesCRM/graphics/rarrow.gif" width="8" height="12">');
else
     document.write(' ');
</SCRIPT>
<A HREF="/servlet/faf.unix.servlet.AWBCountReportServlet"><FONT SIZE="-2" FACE="verdana, arial, helvetica" COLOR="#FFCC66">
<SPAN STYLE="{text-decoration:none}"><STRONG>AWB Report</STRONG></SPAN></FONT></A>
</TD></TR>
</TABLE>
</TD>
<TD width="715" VALIGN="TOP">
<DIV ALIGN="right">
<font size="1" color='black'><script LANGUAGE="JavaScript" SRC="/date.js"></script></font>
</DIV>
<H4> Process - Health Check</H4>
<form name="processes" method="POST">
<BLOCKQUOTE>
AS400 DATA PULL - HEALTH CHECK (For IT Personnel Use)
<BR><BR>
<table border="1" bordercolordark="#003366" bordercolorlight="#003366" cellpadding="4" cellspacing="0" width="90%">
<tr bgcolor="#003366">
<TD align="center"><b><font color="#ffffff" size="2">NAME</b></font></TD>
<TD align="center"><b><font color="#ffffff" size="2">RUN</b></font></TD>
<TD align="center"><b><font color="#ffffff" size="2">STARTED</b></font></TD>
<TD align="center"><b><font color="#ffffff" size="2">FINISHED</b></font></TD>
<TD align="center"><b><font color="#ffffff" size="2">FLAG</b></font></TD>
<TD align="center"><b><font color="#ffffff" size="2">RECOVERY</b></font></TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> CLIENTAR </TD><TD align='center'> Daily </TD><TD align='left'> 6/30/04 9:56 AM </TD><TD align='left'> 6/30/04 10:00 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> CONTAINERALERT </TD><TD align='center'> DAILY </TD><TD align='left'> 6/23/04 6:00 AM </TD><TD align='left'> 6/23/04 6:00 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> DAYMONTHREVENUE </TD><TD align='center'> Daily </TD><TD align='left'> 6/23/04 5:20 AM </TD><TD align='left'> 6/23/04 5:39 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'>   </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> FADAILYREVENUE </TD><TD align='center'> Daily </TD><TD align='left'> 6/30/04 10:13 AM </TD><TD align='left'> 6/30/04 10:19 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> FAONTIMECOMPLIANCE </TD><TD align='center'> Daily </TD><TD align='left'> 7/15/04 2:44 PM </TD><TD align='left'> 7/15/04 2:47 PM </TD><TD align='center'> SUCCESS </TD><TD align='left'>   </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> FAPAYROLLLOCS </TD><TD align='center'> WEEKLY </TD><TD align='left'> 6/18/04 4:30 PM </TD><TD align='left'> 6/18/04 4:30 PM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> FAPROCESS </TD><TD align='center'> Daily </TD><TD align='left'> 6/23/04 4:00 AM </TD><TD align='left'> 6/23/04 4:02 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> FATIMESHEET </TD><TD align='center'> WEEKLY </TD><TD align='left'> 6/18/04 4:30 PM </TD><TD align='left'> 6/18/04 4:39 PM </TD><TD align='center'> SUCCESS </TD><TD align='left'> CLEAR DB AND RESTART PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> FAVOLUME </TD><TD align='center'> Daily </TD><TD align='left'> 6/30/04 10:30 AM </TD><TD align='left'> 6/30/04 4:15 PM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> HP_EMPEXTRACT </TD><TD align='center'> Daily </TD><TD align='left'> 7/26/04 7:10 AM </TD><TD align='left'> 7/26/04 7:10 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> HP_HOURSLOAD </TD><TD align='center'> Daily </TD><TD align='left'> 7/26/04 7:10 AM </TD><TD align='left'> 7/26/04 7:10 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> HP_PUNCHPROCESS </TD><TD align='center'> Daily </TD><TD align='left'> 7/26/04 7:10 AM </TD><TD align='left'> 7/26/04 7:10 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> MONTHLYVOLUME </TD><TD align='center'> Monthly </TD><TD align='left'> 6/1/04 12:00 AM </TD><TD align='left'> 6/1/04 12:11 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<tr bgcolor="#FFFFFF">
<TD align='center'> PREPAIDRATEMAP </TD><TD align='center'> DAILY </TD><TD align='left'> 6/29/04 10:26 AM </TD><TD align='left'> 6/29/04 10:38 AM </TD><TD align='center'> SUCCESS </TD><TD align='left'> RESTART THE PROCESS </TD>
</tr>
<TR bgcolor="#FFFFFF">
<TD colspan="6" align="center">
<B>Total records returned : 14</B>
</TD>
</TR>
</TABLE>
</form>
</BLOCKQUOTE>
<script LANGUAGE="JavaScript" SRC="/publicFooter.js"></script>
</TD>
</TR>
</TABLE>
</BODY>
</HTML><--- End of Complete page --->

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Problem : when i m refreshing or opening the page , it takes a lot of time to open. well the data are also not so much huge that it take some time. ]
Plz help me

Why have you declared your own interface Tag?
The server knows nothing about your custom classes.
You should be implementing the javax.servlet.jsp.tagext.Tag Interface.
Actually the easier way is for your tag to extend SimpleTag, which implements the basic interface for you, leaving you to override the bit you want to.
Check out the API: http://java.sun.com/j2ee/1.4/docs/api/javax/servlet/jsp/tagext/package-summary.html

Timed out issue in jsp page!

Dears,
It is really amazing for me to see this issue in my application which I deployed in Oracle Application Server 10g r2.
I am using JDeveloper 10g to create jsp pages.
On one jsp page i am displaying 15 html tables for a report.
All tables have 1 query to get records from oracle 10g database.
Am opening one connection and than one by one running queries just before each table and rendering data through ResultSet
(which is scrollable).
If I test this page from JDeveloper, it is displaying fine.
But when I deploy this page in Oracle Application Server 10g,
and create a portlet and show this jsp page in portlet and open this page,
this page most of the time giving 'TIMED OUT', and a few times displaying report properly.
I tried PreparedStatement to run multiple queries for Oracle DB, but couldn't make it successfully.
BTW,
I checked my OAS log, it shows following error:
09/03/16 18:39:08 hrwfapp: [instance=(null), id=(null)] ERROR: Request has exceeded its warning timeout Time[elapsed=61046ms.
Warning timeout=20000ms.] Request[id=5003532663665,3 providerId=493501 portletId=117 portletName=AttritionReports
portletInstance=35555_ATTRITIONREPORTS_493501 user=PUBLIC] Thread[ name=AJPRequestHandler-ApplicationServerThread-6
priority=5 alive=true interrupted=false groupName=ApplicationServerThreadGroup]
Please help me in this regard, what should I do to avoid Timed out issue.
Best Regards

Hi,
if this occurs only in combination with portlets then I would try the Oracle Portal forum for help or use customer support to help you analyzing the issue
Frank

How Can I speed up the results on my JSP page with the help of Caching.

I am generating a dropdown listbox by merging an xml file with a style sheet(xsl).
This list box comes up fine without any problems. Now, I am adding some advanced
logic to the
style sheet (xsl) to use the same xml file in a more efficient way. This time
the generation
of the list box is taking much longer (upto 25 seconds) although I get the results
I want.
Is there any way I could speedup this process by using weblogics caching. I know
the process is slowing down
due to the code in the stylesheet. Will caching resolve this issue?. I tried
using
<wl:cache> </wl:cache> on the jsp page generating this listbox but found no improvement.
Any help will be very much appreciated.

turn off your phone, unplug your router, leace it off for 30 seconds, and then power it back on and turn the iphone back on

Junk characters like" � � "displayed in the jsp page please help.

Hi,
I am getting junk characters like � � displayed in the jsp page.
In the JSP page i used javascript "& nbsp" for appending spaces to a string "CCR" to get "CCR " .
Now the Resultant string "CCR " has three spaces appended to its right.
This String is set in session in that JSP page.
In the next JSP page i am getting that string from session.
After getting the string the "substring" function is performed to get only the first 5 charcters of the string. Now the result is displayed as " CCR� � " with has last 2 characters as junk values � � insteed of displaying as "CCR ". Please help me in solving this issue.
Please note that initially the sting "CCR" is got from the Oracle database in Solaris Machine.
Regards,
Vijay

have you tried:
strenuously inspecting the string that is coming from the db? do an actual loop over the string, character by character, dumping to System.out to make sure the characters are EXACT coming out of the db.
note you have to append " " not just "& nbsp"
post the code that is doing the output. the relevant bean code, the jsp, everything relevant - WITH COMMENTS discussing where things are happening.
Also, is it "weird characters" in the browser only? have you done a view source on the actual html source that the browser is rendering (right click in IE and click view source). browsers can act odd if you don't feed then exactly what they want, and it looks like you're feeding it escaped characters that it is rendering as something else.

Taglib repeating in jsp page in TOMCAT. (Can this be Tag pool issue? )

Hi,
We have an application and it is running fine on one servlet container "ServletExec". We are migrating our application to Tomcat and some weird things happenned.
In one of my JSP pages say page " A ", I have included another small JSP say " B "which just created a table with one row and various columns.
Now the columns are created in a taglib. And I am using that taglib inside that page " B".
Now this is working fine in ServletExec.
But in tomcat when I refersh page A or come to this page dfrom some other page, there are multiple instance of tables from page B are rendered.
SO every time I refresh a new entry added to already existing table.
Can any one please help?
I looked in some documents and found that this may be because of some Tag pooling in Tomcat newer versions. Is that right?
If yes how can I remove this tag pooling in my taglib java class?
Any help is highly appreciated.
Thanks

Hi
try disabling the tag pooling and check the page.
To disable the tag pooling in Tomcat
make enablePooling = false for the jsp servlet declaration in
$TOMCAT_HOME/conf/web.xml
Regards

Slow rendering of JSP pages

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