Sun JVM Performance Issue in Sun Solaris 10 (SPARC)

Hi,
Issue : Performance issue after the migration of a Java application from IBM-AIX 5 to Sun Solaris 10 (SPARC)
I am facing performance issue after the migration of a Java application from IBM-AIX 5.3 to Sun Solaris 10 (SPARC).
Normally the application takes less than 1 hour to complete the process in AIX, but after migration in Solaris the application is taking 4+ hours.
The Java version of IBM AIX is ,
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build pap32dev-20051104)
IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 AIX ppc-32 j9vmap3223-20051103 (JIT enabled)
The Java version of Solaris 10 is,
Java(TM) Platform, Standard Edition for Business (build 1.5.0_17-b04)
Java HotSpot(TM) Server VM (build 1.5.0_17-b04, mixed mode)
Description of Application
The application merges 2 XML files of size 300 MB each using DOM Parser and generates flat file according to certain business logic.No remote files are using for the file generation. There are two folders and around 200 XML file in each folders of similar names. The application loads 2 similar XML file at a time from each folder and Processes. Same way, the application processes all the 200 XML file pairs using loop.
The JVM Parameters are given below.
/usr/java5/bin/java -cp $CLASSPATH -Xms3072m -Xmx3072M com.db.mcc.creditderiv.GCDXMLTransProc
Here the extended swap memory in AIX is 3072 (3GB). After copying the same tode to Solaris, the
application started throwing java.lang.OutofMemoryError. So that we have increased the swap memory up to 12 GB.
Since 32bit Java allows maximum 4 GB extended memory we started using 64 Bit Java in Solaris using -d64 argument.
The Current JVM Parameter in Solaris is given below.
java -d64 -cp $CLASSPATH -Xms8192m -Xmx12288m com.db.mcc.creditderiv.GCDXMLTransProc ( 64 GB Swap Memory is available in the System)
We have tried the following options
1.       Extended heap size up to 12 GB using -xms and -xmx parameters and tried multiple -XX options. Earlier the application was working fine in AIX with 3.5 GB extended heap size. ( 64 GB Swap Memory is available in the System)
2.       Downloaded and installed the Solaris SPARC Patches from the website,
     http://java.sun.com/javase/downloads/index_jdk5.jsp
4. Downloaded and installed XML and XSLT patch from sun website
5.       Tried to run the Java in server mode using -server option.

A 64 bit VM is not necessarily faster than a 32 bit one. I remember at least on suggestion that it could be slower.
Make sure you use the -server option.
As a guess IBM isn't necessarily a slouch when it comes to Java. It might simply be that their VM was faster. Could have used a different dom library as well.
Could be an environment problem of course.
Profiling the application and the machine as well might provide information.

Similar Messages

How to troubleshoot JVM performance issues

We recently had a performance issue with our application running on Java 1.4.2 on Windows where the CPU utilization was extremely high. Using the +PrintClassHistogram option I was able to determine that a char array was utilizing more than 500 megabytes of memory.
My question is, is there another option I can include or process I can follow that would help me determine which object was creating this array?
I am not a Java programmer so I apologize if this is elementary question or if I posted this in the wrong forum. I am the SA they call when the application is not running correctly. I have been reading this forum and the manuals trying to find something that would assist me. The developers will fix the problem after I pinpoint where the problem is.
We do not have any type of JVM profiler so I am trying to troubleshoot this issue with thread dumps and JVM options. My assumption is that if a profiler can retrieve the information I should be able to. Is this a correct assumption?
Lastly, if we were to purchase a profiler does anyone have a recommendation on which one to use? Our latest version of the application utilizes Java 5 so we would need something that would work with both versions of Java if possible.
Any assistance or recommendations anyone could provide would be greatly appreciated.

unixmon wrote:
We recently had a performance issue with our application running on Java 1.4.2 on Windows where the CPU utilization was extremely high. Using the +PrintClassHistogram option I was able to determine that a char array was utilizing more than 500 megabytes of memory.
My question is, is there another option I can include or process I can follow that would help me determine which object was creating this array?
I am not a Java programmer so I apologize if this is elementary question or if I posted this in the wrong forum. I am the SA they call when the application is not running correctly. I have been reading this forum and the manuals trying to find something that would assist me. The developers will fix the problem after I pinpoint where the problem is.
This is a management problem. If you have a performance problem then you should be calling the developers and telling them to figure it out and that they need to fix it. You certainly shouldn't be looking at code or profilers.
Unless you have plenty of time on your hands and your goal is to become a developer.
But regardless...
Buying a profiler is an option but if you go that route then to figure out a solution you will be a java programmer even if that isn't your title.
You should however figure out how to simulate load on the server, even with a profiler. There are tools that allow you to send things like http requests, web service requests, etc. Simulating load is a good idea even without a profiler. It allows you to estimate future system needs dependent upon future company growth.
Note that profiling really slows down an application so an app that can handle 10 requests a second might only be able to do 1 a second or less while being profiled.

Performance issues (Oracle 9i Solaris 9)

Hi Guys,
How do I tell if my database is performing at its optimum level. We seem to be having perfomance issues on one of our applications. There are saying it's the database, network, etc.
Thank you.

Hi,
In order to determine whether or not your Database is having performance Issues,you will need to install and execute Statspack. Statspack is utility which provides information about the Performance Parameters of Oracle Database.
If you are already using statspack report for performance analysis post the snapshot of the report.........
Regards,
Prosenjit Mukherjee.

Essbase Performance Issues on Sun Solaris 10

We have a new Hyperion Environment 11.1.1.3 with Essbase sitting on a Solaris box. We are running a calculation script under the "FINSTMT" database that is called CALCALL. This is the default calculation for a database in Essbase (it runs a command called CALC ALL). We are running this same calc against the same database outline and data set across the environments to benchmark performance.
The script in the new environment should run faster, but it runs slower. The server is basically sleeping and we were curious if anyone can recommend configurations within the app or for the OS? Things like semiphors, shared memory, etc... Also if anyone has suggests or ideals to tweak Essbase performance on a Solaris 10 machine and/or UNIX. What should I do to the Essbase.config file?
Mike

I can't help you solaris tuning, but some things to look at.
1. Is the Essbase.cfg file the same on both servers? You might have parallel calculation turned on in one and not the other. Caches could also be set differently
2. Are the database caches set the same? This could impact performance as well
3. Are you doing an apples to apples comparison? Is one database loaded and recalculated many times while the other is not (or restructured or reloaded)

JCaps 5.1.3 Sun Solaris CPU performance issue

Folks,
We are experiencing a serious CPU performance issue on our Solaris server with HL7 projects deployed.
The projects consist of the sample HL7 inbound and outbound projects with an additional service sending to a batch local file external for writing journals.
The performance issue occurs when there is volume of data in the queues/topics. As we continue to deploy additional HL7 projects (usually about 6 interfaces), the CPU increases until it reached 100%.
This sanapshot is prstat when no date is transmitting through the interfaces (One inbound - one outbound):
B PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
15598 jre 379M 177M sleep 59 0 2:49:11 3.1% eManager/74
21549 phs 1174M 1037M sleep 59 0 14:49:00 2.5% is_dm_phs/113
23090 phs 3456K 3136K cpu1 59 0 0:00:01 0.4% prstat/1
23102 phs 3792K 3496K sleep 59 0 0:00:00 0.2% prstat/1
21550 phs 46M 35M sleep 59 0 0:13:27 0.1% stcms.exe/3
1272 noaccess 209M 95M sleep 59 0 0:26:30 0.1% java/25
11733 jre 420M 212M sleep 59 0 1:35:40 0.1% java/34
131 root 4368K 2480K sleep 59 0 0:02:10 0.1% nscd/30
23094 phs 3064K 2168K sleep 59 0 0:00:00 0.1% bash/1
This sanapshot is prstat when data is transmitting through the interfaces(One inbound - one outbound):
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
21549 phs 1174M 1037M cpu1 20 0 14:51:20 88% is_dm_phs/113
15598 jre 379M 181M sleep 59 0 2:49:18 1.3% eManager/74
21550 phs 46M 35M sleep 49 0 0:13:29 1.2% stcms.exe/3
23090 phs 3456K 3128K cpu3 49 0 0:00:03 0.4% prstat/1
1272 noaccess 209M 95M sleep 59 0 0:26:30 0.1% java/25
11733 jre 420M 212M sleep 59 0 1:35:40 0.1% java/34
21546 phs 118M 904K sleep 59 0 0:01:21 0.1% isprocmgr_dm_ph/13
This sanapshot is prstat -L when data is transmitting through the interfaces (One inbound - one outbound):
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/LWPID
21549 phs 1174M 1037M cpu1 41 0 0:00:45 22% is_dm_phs/13971
21549 phs 1174M 1037M sleep 51 0 3:31:06 21% is_dm_phs/1394
21549 phs 1174M 1037M run 51 0 3:14:16 20% is_dm_phs/1296
21549 phs 1174M 1037M sleep 52 0 3:14:13 19% is_dm_phs/1380
15598 jre 379M 181M sleep 50 0 1:49:57 3.1% eManager/4
21549 phs 1174M 1037M sleep 59 0 0:15:36 1.7% is_dm_phs/4
21550 phs 46M 35M sleep 59 0 0:10:52 1.0% stcms.exe/1
21549 phs 1174M 1037M sleep 59 0 0:10:45 0.9% is_dm_phs/6
15598 jre 379M 181M sleep 54 0 0:33:35 0.3% eManager/35
21549 phs 1174M 1037M sleep 59 0 0:03:34 0.3% is_dm_phs/5
21550 phs 46M 35M sleep 59 0 0:02:37 0.2% stcms.exe/2
21549 phs 1174M 1037M sleep 59 0 0:02:17 0.2% is_dm_phs/3
21549 phs 1174M 1037M sleep 59 0 0:02:17 0.2% is_dm_phs/2
Solaris 10 server details:
CPU's (4x900 Sparc III+)
4096 MB RAM
SunOS testican 5.9 Generic_118558-39 sun4u sparc SUNW,Sun-Fire-880
Disk: 6 internal Fujitsu 72GBs
swapspace on the server:
total: 4305272k bytes allocated + 349048k reserved = 4654320k used, 10190536k available
My sysadmin has run statistics (iostat, vmstat, psig, pmap, pfind, pstack, mpstat, etc.) - and has reported that the server is performing fine - with the exception of the CPU. It also looked like the swap space was not being utilized.
We have increased the MaxPerm value to 512, and increased the heapsize on isprocmgr_dm_phs to -Xmx2048m, and increased the heapsize on the domain to 2048 per KB 103824
We have also added the -d64 value (specific to Solaris) per the Deployment Guide.
We increased the value of Maximum Pool size in the JMS clients to 128 - per the deployment Guide.
We increased the swapspace on the server to 10Gb:
total: 4305272k bytes allocated + 349048k reserved = 4654320k used, 10190536k available
We have modified the tcpip and kernal parameters per the Sun Administration server 8.2 performance tuning guide:
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
open files (-n) 8192
pipe size (512 bytes, -p) 10
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 29995
virtual memory (kbytes, -v) unlimited
None of these modificatons appear to increase performance.
Any help is appreciated.
Thanks
Rich...

Hi,
I noticed this behavior with the Alert + SNMP Agents installed but not configured. In this situation, the SNMP agent generates traps for all events, leading to high CPU using, even when nothing was processed. Are you in a similar case?
Regards

Performance issue studio 10 fortran compiler on 2500 blade solaris 10

Dear All,
We facing performance issue on sun blade 2500 with fortran (studio 10).
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if u any solution on this pl. mail me [email protected]
regards
Narayan

You'll need to provide more details before we can help you. You could start by using the performance analyzer to find the slowest parts of your program. You might also be using inappropriate flags (e.g., compiling without optimization would be a problem).

BEA-280101 warning while using Weblogic 10.3.3 on SPARC 64bit sun jvm

Hi all:
I got this warning when start Weblogic 10.3.3 on SPARC 64bit sun jvm
<BEA-280101> <The persistent file store "_WLS_xxxdomain" is forced to use buffered I/O and so may have significantly degraded performance. Either the OS/hardware environment does not support the chosen write policy or the native wlfileio library is missing. See store open log messages for the requested and final write policies. See the documentation on store synchronous write policy configuration for advice.>
I have checked that Native I/O is enabled,but it seems JMS can't find correct .so file
Any idea? Thanks in advance!
Best regards,
James

We are also getting the same error on a Linux 10.3.3 installation with 64bit jrockit
Red Hat Enterprise Linux Server release 5.5
Linux 2.6.18-194.3.1.el5 #1 SMP x86_64 x86_64 x86_64 GNU/Linux
Is that the correct driver? This is a default weblogic installation, what is missing so it uses the correct I/O method?
####<Jun 22, 2010 6:04:12 PM CEST> <Info> <Store> <server> <wlserver> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <> <12772226524
27> <BEA-280008> <Opening the persistent file store "_WLS_admdominio1" for recovery: directory=/weblogic103/user_projects/domain/servers/server/data/store/default requestedWritePolicy="Dire
ct-Write" fileLockingEnabled=true driver="NIO".>
####<Jun 22, 2010 6:04:12 PM CEST> <Warning> <Store> <wlserver> <wlserver> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <> <1277222652564> <BEA-280101> <The persistent file store "_WLS_wlserver" is forced to use buffered I/O and so may have significantly degraded performance. Either the OS/hardware environment does not support the chosen write policy or the native wlfileio library is missing. See store open log messages for the requested and final write policies. See the documentation on store synchronous write policy configuration for advice.>
Edited by: ezra-s on 22-jun-2010 18:46

How to install Apache Web Server with PHP on Sun Solaris Sparc machine

Hi,
We are trying to install the Apache Web Server and the PHP package on a Sun Solaris Sparc machine running on SunOS 5.8. We are having compilation problems with the source code of both these packages.
Does anybody know if there are ready solaris packages for Apache and PHP available from where we can download and install instead of source code compilation?
Or any instructions / things to watch for when installing Apache with PHP (if anybody has tried installing Apache with PHP on Sun Solaris earlier) is most welcome.
Thanks,
Harish

Apache should be bundled along with Solaris check in "/var/apache" in Solaris 8 and Solaris 9
php is available at www.php.net
I found an old document for installing PHP maybe this will help.
Cheers
-Dhruva
+++++++++++++++++++++++++++++++++++++++++++++++++++++++Installing PHP 3.x for Apache 1.x.x on Solaris
Introduction
This document describes how to install PHP for Apache on Solaris.
You should have Apache installed before trying to install PHP.
If you want to use PHP with MySQL then you must install MySQL first.
Before we Begin
1. These instructions assume that you have Apache installed according to instructions.
Getting PHP
1. You must be logged in as root to perform this installation.
su root
2. I save all my downloads in:
/usr/local/dist
If you don't already have one, you may need to create that directory now:
mkdir /usr/local/dist
3. You can get PHP 3.0.14 from here(www.php.net).
cd /usr/local/dist
ftp ftp.php.net
cd pub/distributions
bin
get php-3.0.14.tar.gz
bye
Installing PHP
1. We will install PHP in /usr/local/build, but use a tricky tar command
to do it in on hit from the download directory:
cd /usr/local/dist
tar xvfz php-3.0.12.tar.gz -C ../build
Compiling PHP
1. First let's get where the action is:
cd /usr/local/build/php-3.0.14
2. You now have 3 options:
* Simple PHP install without MySQL - goto step 3
* Simple PHP install with MySQL - goto step 4
* Custom PHP install - goto step 5
3. Simple PHP install without MySQL. Next, jump to step 6.
./configure --with-apache=../apache_1.3.12
4. Simple PHP install with MySQL. MySQL must be installed before you can configure PHP to use it. I recommend that MySQL should always be reachable with /usr/local/mysql. Even if you install it else where you
should create a symbolic link from /usr/local/mysql. Otherwise the compiler can have problems finding the mysqlclient library. The command
should look like this:
./configure with-mysql=/usr/local/mysql with-apache=../apache_1.3.12
Next, jump to step 6.
5. Custom PHP install. Take a look at the available configuration directives by using this command:
./configure --help
6. Now we can make the PHP executable. This may take a while.
make
7. Now we install the PHP module with:
make install
Adding the PHP Module to Apache
1. Now we have to setup Apache to include the PHP module:
cd ../apache_1.3.12
2. Re-configure Apache to use the PHP module. You should use your previous Apache configure command along with the PHP activate module directive.
You can see your previous Apache configure command by doing:
cat config.status
You can configure Apache using the previous command with the added PHP module by doing:
./config.status --activate-module=src/modules/php3/libphp3.a
If you used the simple Apache install from instructions the command will look like this:
./configure prefix=/usr/local/apache activate-module=src/modules/php3/libphp3.a
3. Make and install Apache with PHP enabled:
make
4. We need to stop the server before installing the files:
/usr/local/apache/bin/apachectl stop
5. Now we can install the new binaries:
make install
6. Start apache again (now running the new php enabled version):
/usr/local/apache/bin/apachectl start
Setting Up PHP
1. We have to tell Apache to pass certain file extensions to PHP. We do this in Apache's httpd.conf file.
cd /usr/local/apache/conf
2. Edit the httpd.conf file. If you do a search for php you will find a couple of commented out lines telling Apache to use the PHP module. You should uncomment them to look like this.
AddType application/x-httpd-php3 .php3
AddType application/x-httpd-php3-source .phps
3. I prefer to use the extension .phtml, you can use whatever extension you like (even .html) by adding lines to httpd.conf like this:
AddType application/x-httpd-php3 .phtml
Check that it Works
1. We have to restart Apache to make these changes take effect on the running server.
cd /usr/local/apache/bin
./apachectl restart
2. Apache should now be running with PHP enabled. The server version should include PHP/3.0b2.
./apachectl status
Apache Server Status for dev.synop.com
Server Version: Apache/1.3.9 (Unix) PHP/3.0.12
Server Built: Oct 25 1999 00:37:07
3. Now it is time to test PHP with a page. The simplest thing to do is create a page called test.php3. My file is here. This file contains the
following text:
<?php phpinfo(); ?>
4. Point your browser at this file on the virtual host which you used:
http://localhost/test.php3

Can I run SUN and BEA JVM with WL9.1 on Solaris 9

Is it possible to run a WL9.1 domain on SUN JVM and another one on BEA JRockit? The reason I asked is that for the WL9.1 Sparc download, there's one for Solaris 8,9 and 10 on Sparc and there's another one for Solaris 9 with JRockit Supported. Is this mean I have to install both on 2 separate BEA home?

Right, I read the docs. What's confusing is that on the WLS download page, there's a download for the Solaris Sparc 8,9,10 (server910_solaris32.bin). There's another download for Solaris 9 with JRockit Supported (server910_generic.jar). For the server910_solaris32.bin, it comes with the SUN JDK. For the server910_generic.jar, it doesn't have the SUN JDK and it needs a separate JRockit download, jrockit-R26.3.0-jdk1.5.0_06-solaris-sparcv9.bin. Also, in the WLS9.1-JRockit install docs, it requires the LD_LIBRARY_PATH to point to sparc64 instead of sparc in the {WL_HOME}/common/bin/commEnv.sh.
I guess my question is which file should I use for the base WLS install? server910_solaris32.bin or server910_generic.jar? If I use the server910_solaris32.bin, I will need to add JRockit as a separate install. If I use server910_generic.jar, i will need to install JRockit as well as the SUN JDK.

Issues with migrating to SUN JVM

Hi
Chapter 4 of the "Microsoft Java Virtual Machine Transition Guide for IT Professionals" [part of the documentation for "The Diagnostic Tool for the Microsoft Virtual Machine"] contains[under a discussion of disabling Java] :
(a) '... the Sun JRE, which "impersonates" the Microsoft Java Virtual Machine in IE ...';
(b) 'Some Java plug-ins install in a Windows system by "impersonating" the Microsoft Java Virtual Machine using the same registry entry and Class ID in installation ... Be cautious when installing JREs that impersonate the Microsoft Java Virtual Machine ...'.
Can anyone provide more information about this "impersonation" and what to be "cautious" about?
In particular:
(1) Does the impersonation only affect interpretation of applets under Internet Explorer plus any direct HTML references to the associated registry entries [and not any direct executable references to the Microsoft Java VM]?
(2) Does the Microsoft Java VM have to be retained [even if another JRE is installed] to support any direct executable references to it?
When I run "The Diagnostic Tool for the Microsoft Virtual Machine" on a Windows 98SE system, its VM Dependency Report has many entries for Micrsoft library modules - eg IEDETECT.DLL - and its Visual J++ Class Report has many entries - eg C:\WINDOWS\SYSTEM\MSHTML.DLL.
There is no information about whether such dependencies are critical - the modules may have alternative paths if the MSJVM is not installed.
At this stage, I suspect that Microsoft is not going to issue updates to such modules [Windows 98 is no longer fully supported] and therefore it would be unsafe to remove the Microsoft Java VM.
Chapter 4 also mentions a "TreatAs" subkey, and recommends removing it. Does the Sun JRE install or rely on such a subkey?
Chapter 6 says that "The use of Microsoft extensions is easy to find in current J++ source files ..." but is there any way that users without access to such source files can find which executable modules are dependendent on the entries shown when I run "The Diagnostic Tool for the Microsoft Virtual Machine" and look at its Visual J++ JAVAREG Report [which lists CLSIDs and associated Java classes for msjava.dll].
Regards,
Peter Jones

HI Owen,
JVM dependent web Applications are not working with IE after migrating to SUN JVM from MSJVM
steps I followed are as follows.
1)uninstalled MSJVM using MSJVM removal tool
2) Install SUNJVM 1.4.2_07
os used is windows xp sp2.
I did checked SUN JVM in Internet options.
Then I tried to test JVM dependent web apps on this they are not working. sometime JVM was attempting to upgrade to a newer version.
But strangely it started working when I followed follwong steps.
1) Install SUNJVM 1.4.1 (initial) - this version actually works proper with Documentum
2) Uninstall SUNJVM 1.4.1 from Add/Remove Programs AND Remove the two Java Folders from Registry, under the Software Folder
3) Reboot the pc
4) Install SUNJVM 1.4.2_07
5)checked SUN JVM in Internet options.
Can Some one help me to know the reason for both not wokring and working.espl working since deepending on this I need to decide on how to migrate to SUN JVM
Thanks
Nagaraj
History:
My client is having MSJVM on their PCs I had suggested to migrate all these MSJVM dependent apps to SUN JVM. In this process I wanted to test these MSJVM apps with SUN JVM. while setting test lab I observed above mentioned behaviour.

Link to downoad the OBIEE software for Sun Solaris sparc 64 bit

Guys,
Help me out to know from where i can get software of OBIIEE(Siebel) for installation on Sun Solaris sparc 64 bit.? Its's urgent
reards
Prashant

Such specific software is not available on OTN, you have to contact an Oracle sales representative.
Werner

When is OSM 7.0 available on Sun Solaris Sparc 64 bit ?

Hi
Does anyone know when is version 7.0 of OSM will be available for download for Sun Solaris SPARC (64bit) ?
Currently, only version 6.3.1 is available from edeliver.oracle.com for Sparc 64bit, as far as I can see, I can only find "Oracle Communications Order and Service Management 6.x Media Pack".
For Linux, version 7.0 was made available on edelivery.oracle.com early this year.
Regards
Alf Hogemark

It is available now.
OSM 7.0 for Solaris Sparc 64-bit and for HP-UX Itanium were both made available on Oracle E-Delivery (www.edelivery.oracle.com) as of earlier this week.

Sun ONE 6.1 Performance Issues - Sleeping / Hanging

We have been running the Sun family of web servers for many years now, and ran Netscape Enterprise Server 3.6 for a long time.
Several months ago we upgraded to Sun ONE Web Server 6.0 and then 6.1. We have not had any issues until the past few weeks.
Specifically, the web server appears to 'go to sleep' or 'hang' for many seconds - sometimes up to 45 seconds - before processing any requests.
The server will accept the connection immediately but will not return a page. If left alone, the problem will go away, only to return again. A stop and start will also cure the problem.
Some background: 6 web servers run on this same server (Sun E250 2x400 MHz, 1280 MB RAM) - these servers are all relatively lightly loaded. Copper gigabit connection for network.
Primary data is static, with very few cgi-bin scripts and no applets or server-side Java.
All 6 servers have DNS lookups enabled with caching. The server also has a local DNS caching server running (BIND 9) which is used to help performance.
One of the 'public' web servers (external people can access it) is the one showing these performance issues. I've enabled statistics, and it seems during these 'sleepy' periods I see the following in /.perf (which it finally returns): (I am fetching /.perf every minute and timing how long it takes to fetch it, then saving it in a separate file):
webservd pid: 9507
Sun ONE Web Server 6.1 B08/22/2003 12:37 (SunOS DOMESTIC)
Server started Thu Mar 11 00:31:37 2004
Process 9507 started Thu Mar 11 00:31:37 2004
ConnectionQueue:
Current/Peak/Limit Queue Length 98/98/4096
Total Connections Queued 17873
Average Queueing Delay 0.11 milliseconds
ListenSocket group1:
Address http://146.137.96.68:80
Acceptor Threads 1
Default Virtual Server https-www.anl.gov
KeepAliveInfo:
KeepAliveCount 0/256
KeepAliveHits 1414
KeepAliveFlushes 0
KeepAliveRefusals 0
KeepAliveTimeouts 709
KeepAliveTimeout 30 seconds
SessionCreationInfo:
Active Sessions 105
Total Sessions Created 158/256
CacheInfo:
enabled yes
CacheEntries 1024/1024
Hit Ratio 58558/76530 ( 76.52%)
Maximum Age 30
Native pools:
NativePool:
Idle/Peak/Limit 1/1/128
Work Queue Length/Peak/Limit 0/0/0
DNSCacheInfo:
enabled yes
CacheEntries 406/2048
HitRatio 16547/18476 ( 89.56%)
Async DNS disabled
Performance Counters:
Average Total Percent
Total number of requests: 16961
Request processing time: 0.5940 10074.6680
default-bucket (Default bucket)
Number of Requests: 16961 (100.00%)
Number of Invocations: 268684 (100.00%)
Latency: 0.0013 21.2806 ( 0.21%)
Function Processing Time: 0.5927 10053.3877 ( 99.79%)
Total Response Time: 0.5940 10074.6680 (100.00%)
Sessions:
Process Status Function
9507 response flex-log
response flex-log
response shtml_send
response shtml_send
response flex-log
response flex-log
response flex-log
response shtml_send
response flex-log
response flex-log
response flex-log
response shtml_send
response flex-log
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response send-cgi
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response shtml_send
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response shtml-hacktype
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response send-cgi
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response send-cgi
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response send-file
response send-cgi
response shtml_send
response shtml_send
response flex-log
response service-dump
Why do I have all of these processes queued on the server?
Is DNS causing this? I know Sun ONE 6.x does NOT have asynchronous DNS implemented (although it is an option, it has no effect). Did Netscape Enterprise Server 3.6 has ASync DNS implemented?
We would like to avoid turning off DNS resolution for a number of reasons. However, what really bothers us is that this web server's performance suddenly became a problem while the other 5 servers see FANTASTIC performance and never go to sleep (although some of them are NOT accessible from the general Internet).
Has anyone else seen this?
As a side note, all of these web servers are using a NSAPI plugin that I wrote years ago. It's purpose is access control and automatic forwarding to different pages. It also uses DNS hostnames, but thinking it might be a problem with this web server, I've disabled DNS on the plug-in. It has not helped. Again, this plug-in has worked great for years and is quite straightforward and simple.
Something tells me there is more going on here - thoughts or ideas?
We're getting immensely frustrated here.
In desperation we've made some magnus.conf changes but to no real effect (partially listed below):
DNS on
RqThrottle 256
StackSize 131072
CGIWaitPid on
AsyncDNS off
KeepAliveThreads 2
MaxKeepAliveConnections 256
UseNativePoll 1
RcvBufSize 8192
# default=100
KeepAliveQueryMeanTime 25
# default=100
KeepAliveQueryMaxSleepTime 25
# CGI
MinCgiStubs 10
MaxCgiStubs 50
CGIStubIdleTimeout 45
CGIExpirationTimeout 90
Thanks for any pointers,
--Dave

Note that at the moment it seems to be responding normally, but we still have a lot of threads hanging around - very strange...
9507 response flex-log
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Issue in configuration - formsweb.cfg (10.1.2.0.2) using Sun JVM

Hi gurus,
Below is my config in formsweb.cfg, I want to use Sun JVM instead of Jinitiator
[customjpi]
baseHTML=D:\Ora10gDS\forms\server\base.htm
baseHTMLjpi=D:\Ora10gDS\forms\server\basejpi.htm
baseHTMLjinitiator=D:\Ora10gDS\forms\server\basejpi.htm
HTMLdelimiter=%
envFile=default.env
escapeparams=true
form=test.fmx
serverURL=/forms/lservlet
codebase=/forms/java
imageBase=DocumentBase
width=100%
height=100%
separateFrame=true
archive=D:\Ora10gDS\forms\java\frmall.jar
archive_jini=D:\Ora10gDS\forms\java\frmall_jinit.jar
jpi_download_page=http://java.sun.com/products/archive/j2se/1.4.2_09/index.html
jpi_classid=clsid:8AD9C840-044E-11D1-B3E9-00805F499D93
jpi_codebase=http://java.sun.com/products/plugin/autodl/jinstall-1_4-windows-i586.cab#Version=1,4,0,0
jpi_mimetype=application/x-java-applet;jpi-version=1.4.2_09
When I calling form using URL http://pc021161.cts.com:8889/forms/frmservlet?config=customjpi which is throwing errors.
Below is my log of Java console
Java Plug-in 1.5.0_06
Using JRE version 1.5.0_06 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\125217
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
java.net.MalformedURLException: unknown protocol: d
     at java.net.URL.<init>(Unknown Source)
     at java.net.URL.<init>(Unknown Source)
     at sun.plugin.util.GrayBoxPainter.setProgressFilter(Unknown Source)
     at sun.plugin.AppletViewer.initApplet(Unknown Source)
     at sun.plugin.AppletViewer.appletInit(Unknown Source)
     at sun.plugin.viewer.LifeCycleManager.initAppletPanel(Unknown Source)
     at sun.plugin.viewer.IExplorerPluginObject$Initer.run(Unknown Source)
load: class oracle.forms.engine.Main not found.
java.lang.ClassNotFoundException: oracle.forms.engine.Main
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed.
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 10 more
Exception in thread "Thread-4" java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletException(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Please help, if anybody have the idea of this error.
Thanks in Advance
Justin

My default.env file is pasting below:
# $Id: default.env 14-apr-2005.13:22:43 pkuhn Exp $
# default.env - default Forms environment file, Windows version
# This file is used to set the Forms runtime environment parameters.
# If a parameter is not defined here, the value in the Windows registry
# will be used. If no value is found in the registry, the value used will
# be that defined in the environment in which the servlet engine (OC4J
# or JServ) was started.
# NOTES
# 1/ The Forms installation process should replace all occurrences of
# <percent>FORMS_ORACLE_HOME<percent> with the correct ORACLE_HOME
# setting, and all occurrences of <percent>O_JDK_HOME<percent> with
# the location of the JDK (usually $ORACLE_HOME/jdk).
# Please make these changes manually if not.
# 2/ Some of the variables below may need to be changed to suite your needs.
# Please refer to the Forms documentation for details.
ORACLE_HOME=D:\Ora10gDS
# Search path for Forms applications (.fmx files, PL/SQL libraries)
# If you need to include more than one directory, they should be semi-colon
# separated (e.g. c:\test\dir1;c:\test\dir2)
FORMS_PATH=D:\Ora10gDS\forms;D:\Source\FMB;D:\Source\LIB
# webutil config file path
WEBUTIL_CONFIG=D:\Ora10gDS\forms\server\webutil.cfg
# Disable/remove this variable if end-users need access to the query-where
# functionality which potentially allows them to enter arbitrary SQL
# statements when in enter-query mode.
FORMS_RESTRICT_ENTER_QUERY=TRUE
# The PATH setting is required in order to pick up the JVM (jvm.dll).
# The Forms runtime executable and dll's are assumed to be in
# D:\Ora10gDS\bin if they are not in the PATH.
# In addition, if you are running Graphics applications, you will need
# to append the following to the path (where <Graphics Oracle Home> should
# be replaced with the actual location of your Graphics 6i oracle_home):
# ;<Graphics Oracle Home>\bin;<Graphics Oracle Home>\jdk\bin
PATH=D:\Ora10gDS\bin;D:\Ora10gDS\jdk\jre\bin\client
# Settings for Graphics
# NOTE: These settings are only needed if Graphics applications
# are called from Forms applications. In addition, you will need to
# modify the PATH variable above as described above.
# Please uncomment the following and put the correct 6i
# oracle_home value to use Graphics applications.
#ORACLE_GRAPHICS6I_HOME=<your Graphics 6i oracle_home here>
# Search path for Graphics applications
#GRAPHICS60_PATH=
# Settings for Forms tracing and logging
# Note: This entry has to be uncommented to enable tracing and
# logging.
#FORMS_TRACE_PATH=<FORMS_ORACLE_HOME>\forms\server
# System settings
# You should not normally need to modify these settings
FORMS=D:\Ora10gDS\forms
# Java class path
# This is required for the Forms debugger
# You can append your own Java code here)
# frmsrv.jar, repository.jar and ldapjclnt10.jar are required for
# the password expiry feature to work(#2213140).
CLASSPATH=D:\Ora10gDS\j2ee\OC4J_BI_Forms\applications\formsapp\formsweb\WEB-INF\lib\frmsrv.jar;D:\Ora10gDS\jlib\repository.jar;D:\Ora10gDS\jlib\ldapjclnt10.jar;D:\Ora10gDS\jlib\debugger.jar;D:\Ora10gDS\jlib\ewt3.jar;D:\Ora10gDS\jlib\share.jar;D:\Ora10gDS\jlib\utj.jar;D:\Ora10gDS\jlib\zrclient.jar;D:\Ora10gDS\reports\jlib\rwrun.jar;D:\Ora10gDS\forms\java\frmwebutil.jar;D:\Ora10gDS\forms\java\frmall.jar;D:\Ora10gDS\forms\java\frmall_jinit.jar
Regards
justin

PLZ HELP ME:::Degradation in performance of ORA-10G in solaris sparc

Hi ,
We recently installed solaris 10 (5.10) on sun sparc 64 bit machine and created oracle DB with 10.2.0.1 release .
Our java application calls the oracle procedure
and procedure returns the result set with sys_refcursor as out parameter.
After solaris 10 installation, our application performance has come down drastically.
The same application is running fine on solaris 9 ( 5.9 )
Old configuration
sun sparc 64 bit
solaris 9 (no patches applied )
oarcle 10.2.0.1 (no patches applied )
jboss      3.2.7
jdk 1.4
New configuration
sun sparc 64 bit
solaris 10 (no patches applied )
oarcle 10.2.0.1 (no patches applied )
jboss 3.2.7
jdk 1.4
would like to know about any known Solaris , Oracle DB patches to address this performance issue.
Any solution to bring back the same old performance with out downgrading , would be of great help to us.
thanks a lot in advance.

user645751 wrote:
we dont have this problem before on the same machine.
But the machine is rebooted with new OS of solaris, and Oracle 10G is installed Freshly as previously.So you want to say that the only thing that changed is the Operating System, the remaining things haven't been touched? "Freshly" installed sounds like a new installation, but that's not what you want to say, is it?
But if we include in the new stored procedures, they r not executing at the same time as earlier procedures does.Unclear what the "new stored procedures" are you are referring to.
No change in the procedures and queries.
we have two instances of our application on the same database with stored procedures(queries included in the stored procedures), this is causing degradation.
As the second instance with no stored procedures, but the same queries will be posed is not showing any degradation.So you have two versions of your application - one using stored procedures that contain queries (and return the result set as REF CURSORs?) and the other one doesn't use these stored procedures?
You need to track down what is causing the performance degradation. Since you're already on 10g you might want to use the built-in AWR reports as a starting point to find out what might be the difference resp. what is causing the most load on the database (of course only if you have an AWR license purchased).
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Sun JVM Performance Issue in Sun Solaris 10 (SPARC)

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