Weblogic 8.1 SP4 on AIX Performance issues

We are currently facing big performance issues with our servers that are holding just a couple of applications. The server specs are:
System Model: IBM,7040-681
Processor Type: PowerPC_POWER4
Number Of Processors: 2
Processor Clock Speed: 1500 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
Memory Size: 6144 MB
Good Memory Size: 6144 MB
Java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2)
Classic VM (build 1.4.2, J2RE 1.4.2 IBM AIX build ca142-20060824 (SR6) (JIT
enabled: jitc))
Is anybody aware of this kind of problems for Wl8.1+AIX?
Thanks,
Johann

I am getting the same error as well
cannot load libary 'stackdump': java.lang.UnsatisfiedLinkError: no stackdump in java.library.path
I am creating a simple domain using the domain config wizard and I hope all the PATH and LD_LIBRARY_PATH are set by the default scripts. But I am still getting this error.
But Kill -3 <PID> works though!
Is is a know problem OR am I missing something?!
Bala

Similar Messages

Weblogic 8.1 SP4 Two Interesting Security Issues

FIRST ISSUE:
Has anyone correctly configured a SSL Enabled Active Directory Authentication Provider ? The documentation is a little vague on this topic.
SECOND ISSUE:
We just noticed an issue with the initial authentication request to our security providers. It appears to be handeling initial responses incorrectly but subsequent authentication request are work correctly.
-Corey

Hi. We don't update docs well... You should have zero problems. I might
recommend contacting official support to get the latest version of our
JDBC driver package, but it may not be necessary.
Joe

Performance issue BPC 7.5 SP4

Hi
We have got performance issue after a upgrade from BPC 7.5 SP03 to BPC 7.5 SP04 Patch1.
We got problem with EVDRE reports especially with large reports with a lot of settings in MemberSet or if we use filter on property in MemberSet.
We have reports that expand in about 20 seconds on BPC 7.5 SP03 and takes about 25 minutes to expand after the upgrade to BPC 7.5 SP04 Patch1
I have also made new EVDRE reports and vary simple reports works fine but when I increase the number of members to expand and the number of terms in MemberSet I works very slow.
We have got about 10 applications in this Appset and the problem does only occur in one of this Applications
I have processed all dimensions in the application and done full process and modify application without any error.
I have also tried to create a log file on the EVDRE report to compare logs in the different applications and different ServicPacks but I only get data in the EVDRE_TRACE.TXT file and no data in the EVDRE_LOG.TXT file
Anyone having the same problem? Anyone who knows how to get the EVDRE_LOG.TXT file to work?
Regards
Fredrik

Hi,
Starting with 7.0 SP4 enable the logs is done into other way.
Please follow the note:1328702
Regards
Sorin Radulescu

Performance Issues in weblogic managed server

Hi,
We are facing performance issues in our managed servers in weblogic domain and in logs it is showing this error continuously.
<Oct 2, 2013 10:39:27 AM MST> <Error> <WebLogicServer> <BEA-000337> <[STUCK] ExecuteThread: '47' for queue: 'weblogic.kernel.Default (self-tuning)' has been busy for "700" seconds working on the request "Workmanager: OIMMDBWorkManager, Version: 0, Scheduled=false, Started=true, Started time: 700360 ms
", which is more than the configured time (StuckThreadMaxTime) of "600" seconds. Stack trace:
Thread-294 "[STUCK] ExecuteThread: '47' for queue: 'weblogic.kernel.Default (self-tuning)'" <alive, suspended, blocked, priority=1, DAEMON> {
    -- Blocked trying to get lock: java.io.PrintStream@41a53700[not locked]
    java.io.PrintStream.println(PrintStream.java:755)
    com.wyndham.operations.user.eventHandlers.PostCreateOperationsEventHandler.execute(PostCreateOperationsEventHandler.java:60)
    oracle.iam.platform.kernel.impl.OrchProcessData.runPostProcessEvents(OrchProcessData.java:1225)
    oracle.iam.platform.kernel.impl.OrchProcessData.runEvents(OrchProcessData.java:665)
    oracle.iam.platform.kernel.impl.OrchProcessData.executeEvents(OrchProcessData.java:268)
    oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.resumeProcess(OrchestrationEngineImpl.java:810)
    oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.notifyParentProcess(OrchestrationEngineImpl.java:971)
    oracle.iam.platform.kernel.impl.OrchProcessData.runEvents(OrchProcessData.java:665)
    oracle.iam.platform.kernel.impl.OrchProcessData.executeEvents(OrchProcessData.java:268)
    oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.resumeProcess(OrchestrationEngineImpl.java:810)
    oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.resumeChildProcess(OrchestrationEngineImpl.java:880)
    oracle.iam.platform.kernel.impl.OrchProcessData.handleAdditionalChanges(OrchProcessData.java:552)
    oracle.iam.platform.kernel.impl.OrchProcessData.runEvents(OrchProcessData.java:665)
    oracle.iam.platform.kernel.impl.OrchProcessData.executeEvents(OrchProcessData.java:268)
    oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.resumeProcess(OrchestrationEngineImpl.java:815)
    oracle.iam.platform.kernel.impl.OrchestrationEngineImpl.resumeProcess(OrchestrationEngineImpl.java:843)
    oracle.iam.platform.kernel.impl.OrhestrationAsyncTask.execute(OrhestrationAsyncTask.java:97)
    oracle.iam.platform.async.impl.TaskExecutor.executeUnmanagedTask(TaskExecutor.java:99)
    oracle.iam.platform.async.impl.TaskExecutor.execute(TaskExecutor.java:52)
    oracle.iam.platform.async.messaging.MessageReceiver.onMessage(MessageReceiver.java:60)
    sun.reflect.GeneratedMethodAccessor1493.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:575)
    com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
    com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
    com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
    com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:86)
    com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
    com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
    com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:102)
    com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
    com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:151)
    $Proxy460.onMessage(Unknown Source)
    weblogic.ejb.container.internal.MDListener.execute(MDListener.java:518)
    weblogic.ejb.container.internal.MDListener.transactionalOnMessage(MDListener.java:467)
    weblogic.ejb.container.internal.MDListener.onMessage(MDListener.java:327)
    weblogic.jms.client.JMSSession.onMessage(JMSSession.java:4638)
    weblogic.jms.client.JMSSession.execute(JMSSession.java:4134)
    weblogic.jms.client.JMSSession.executeMessage(JMSSession.java:3820)
    weblogic.jms.client.JMSSession.access$000(JMSSession.java:115)
We have performed workload manager tuning in weblogic console as below.
The property ‘Maximum Threads Constraint’ of work managers OIMMDBWorkManager = 80 and OIMUIWorkManager = 20
Please suggest the solution.

Hi,
If you look more closely at the STUCK Thread stack trace, you will notice that the thread is attempting to acquire a LOCK on the following Object monitor: java.io.PrintStream@41a53700. The native thread state is also in a BLOCKED state.
My primary recommendation is to generate a full JVM Thread Dump (next re-occurence) so we can identify the potential culprit Thread holding such lock. One more thing, please see if you have multiple snapshots of this thread 294?
I also recommend to review the following source code:
com.wyndham.operations.user.eventHandlers.PostCreateOperationsEventHandler.execute(PostCreateOperationsEventHandler.java:60)
Sharing the same Stream object in this case would trigger thread lock contention given java.io.PrintStream has built-in synchronization ex:
   public void println(String x) {
synchronized (this) {
     print(x);
     newLine();
Regards,
P-H
http://javaeesupportpatterns.blogspot.com

BEA Weblogic performance issue

Hi All,
We are using bea weblogic 10.2.
We have some performance issue in our production.
We face the proble like
1. Our bea query takes maxixmum cpu utilization in the oracle databse.
process are content upload, update, expiry and report fetching.
2. When we run BEA query for report it takes around 10 min to run and content count is around 70,000,
is this OK?
3. Some times we get Socket connection error.
4. Sometimes we get portal datasource connection pool error, currently it is set as 30.
5. Almost every process is slow.
Can anyone help me for optimization?
From BBA,
we idetified the query which is taking high CPU utilization..
SELECT
DISTINCT B.NODE_ID, B.NODE_VERSION_ID, B.CM_MODIFIED_DATE, B.MODIFIED_BY,B.VERSION_COMMENT,
B.LIFECYCLE_STATUS,A.OBJECT_CLASS_ID,A.REPOSITORY_NAME
FROM CMV_NODE A, CMV_NODE_VERSION B,(SELECT NODE_ID, MAX(CAST(NODE_VERSION_ID AS INTEGER)) NVI
FROM CMV_NODE_VERSION GROUP BY NODE_ID) A1, ( SELECT B.NODE_ID,B.NODE_VERSION_ID, B.CM_MODIFIED_DATE,
B.MODIFIED_BY, B.VERSION_COMMENT, B.LIFECYCLE_STATUS, A.OBJECT_CLASS_ID, A.REPOSITORY_NAME FROM CMV_NODE A,
CMV_NODE_VERSION B, CMV_NODE_VERSION_PROPERTY N1, CMV_PROPERTY P1, CMV_VALUE_V V1 WHERE A.NODE_ID = B.NODE_ID
AND B.NODE_ID = N1.NODE_ID AND B.NODE_VERSION_ID = N1.NODE_VERSION_ID AND N1.PROPERTY_ID = P1.PROPERTY_ID
AND P1.PROPERTY_ID = V1.PROPERTY_ID AND P1.PROPERTY_NAME = :1 AND (UPPER(V1.TEXT_VALUE) LIKE :2 ESCAPE :"SYS_B_0" )
UNION
SELECT B.NODE_ID, B.NODE_VERSION_ID, B.CM_MODIFIED_DATE, B.MODIFIED_BY, B.VERSION_COMMENT,
B.LIFECYCLE_STATUS, A.OBJECT_CLASS_ID, A.REPOSITORY_NAME FROM CMV_NODE A, CMV_NODE_VERSION B, CMV_NODE_
Edited by: Arvind Rai on Apr 13, 2010 12:49 PM

If your DB CPU is pegged, then anything that does db operations will take time (including some portal operations). If you take a thread dump you should be able to see them waiting on the DB
When we run BEA query for report it takes around 10 min to run and content count is around 70,000,No. If it causes your CPU to max out it isnt. However your content items arent that much, so what query are you running? You could always export and import just the content tables and run your queries on some other machine (Assuming this is the cause)
3. Some times we get Socket connection error.More information needed
4. Sometimes we get portal datasource connection pool error, currently it is set as 30.What is the error?
5. Almost every process is slow.If the DB is maxed this is what you should expect.
When is the query fired? Are your indexes created? I assume caching is not much good to you since these are reporting queries?

Weblogic 8.1 SP4 poor performance

Hi,
I just got started with weblogic 8.1 SP4 platform.
Installed weblogic 8.1 SP4 complete suite on win 2k adv server with 1 Gig RAM.
Well, I have not been able to do much as I initially thought to use it as a DEV platform. I have been trying to run examples via weblogic workshop. The system just crawls whenever I start weblogic server.
Isnt 1 gig of RAM sufficient for the DEV setup ?
Please suggest performace tuning options. I went thru the documentation about performace tuning of weblogic server. I even bumped up the initial heap size for JVM from 256 to 512M, but did not see any improvement from the performance perspective.
please advise.
Thanks

No WLS 8.1 sp4 does not support EJB 2.1
- Ramkumar

Weblogic J2EE agent 2.2 performance issue

Hi All,
Are these known performance issues with J2EE Agent 2.2 for Weblogic 8sp5?
Is there a document that tells about performance tuning of J2EE Agent 2.2 for Weblogic server?
We are doing the load testing with AM 7.0 and Weblogic J2EE Agent. We found that AM7.0 with Apache Policy agent works fine in our load test. Our Application's performance without the J2EE agent is good. The moment we add J2EE Agent for weblogic to the equation, it goes south...
Any help will be appreciated,
Thanks,
Vivek

Hi All,
Are these known performance issues with J2EE Agent 2.2 for Weblogic 8sp5?
Is there a document that tells about performance tuning of J2EE Agent 2.2 for Weblogic server?
We are doing the load testing with AM 7.0 and Weblogic J2EE Agent. We found that AM7.0 with Apache Policy agent works fine in our load test. Our Application's performance without the J2EE agent is good. The moment we add J2EE Agent for weblogic to the equation, it goes south...
Any help will be appreciated,
Thanks,
Vivek

WebLogic 10.3.4 Adminserver Performance Issues - Clustered Environment.

I am running WL 10.3.4 64 bit version on 64 bit hardware (blade serves) running Solaris 10 and I have the servers setup in a cluster. There are 3 machines are part of the cluster.
Managed Server1 is on Blade Server 1
Managed Server2 is on Blade Server 2
Managed Server3 is on Blade Server 3
We have about 20 different clusters setup and 60 servers across those 20 clusters.
The adminserver runs on a separate box (not a blade server). Tasks that do NOT involve the servers or deployments tabs are relatively fast however, when I go to the servers or deployments tab, and to some extent the clusters tab, the response is very slow.
For example, I am running WL 10.3.0 on less robust hardware. I installed the patch that Oracle published to resolve this particular issue. We have a similar number of clusters and servers on in that environment (3 severs to a cluster). The servers tab responds in 10 seconds.
In WL 10.3.4, the servers and deployments tabs take about 45 - 60 seconds to respond. This adds a LOT of overhead to doing any server or deployment related tasks.
I realize that the admin server has to query all the managed servers but performance in 10.3.4 is much worse than WL 10.3.0 with the performance patch.
Has anyone else run into similar performance issues with the WL 10.3.4 ADMIN Console running in a clustered environment? If so, does anyone have any suggestions to help improve performance.
I also run a WL 10.3.4 instance in a single server environment and the servers and deployments tabs respond withing 10 seconds (very fast). It is just in a clustered environment.
Regards,
Mark

hi Mark, it's a very interesting story, any follow-up? I would be curious to know the reason for the delay...

Weblogic 6.1 SP4 Oracle Issue

Hi Guys,
We have the following setup:
1) Weblogic 6.1 SP4 on Windows 2000
2) Oracle 8.1.7
3) Oracle Thin Driver provided by Weblogic for connecting to database.
Through the application when a container managed Enterpise bean tries to update
a varchar field in database.
The updation is succesful but certain junk characters are getting updated in the
specific field. While in Weblogic 6.1 SP2 we are having no problems at all.
Is there any fixes around for this.
Any help is highly appreciated.....
Thanks in advance,
Kumar

The Oracle thin driver default changed between SP3 and SP4 from
version 8.1.7 to 9.2.0. However, the kit has classes12.zip
for 8.1.7 and 9.0.1. We have encountered some things that are
broken in 9.20 and some things that are fixed in 9.20.
You could try putting the 81.7 or 9.0.1 classes12.zip at the beginning of
your
CLASSPATH.
"Kumar" <[email protected]> wrote in message
news:3e3ce843$[email protected]..
>
Hi Guys,
We have the following setup:
1) Weblogic 6.1 SP4 on Windows 2000
2) Oracle 8.1.7
3) Oracle Thin Driver provided by Weblogic for connecting to database.
Through the application when a container managed Enterpise bean tries toupdate
a varchar field in database.
The updation is succesful but certain junk characters are getting updatedin the
specific field. While in Weblogic 6.1 SP2 we are having no problems atall.
>
Is there any fixes around for this.
Any help is highly appreciated.....
Thanks in advance,
Kumar

Performance issues with class loader on Windows server

We are observing some performance issues in our application. We are Using weblogic 11g with Java6 on a windows 2003 server
The thread dumps indicate many threads are waiting in queue for the native file methods:
"[ACTIVE] ExecuteThread: '106' for queue: 'weblogic.kernel.Default (self-tuning)'" RUNNABLE
     java.io.WinNTFileSystem.getBooleanAttributes(Native Method)
     java.io.File.exists(Unknown Source)
     weblogic.utils.classloaders.ClasspathClassFinder.getFileSource(ClasspathClassFinder.java:398)
     weblogic.utils.classloaders.ClasspathClassFinder.getSourcesInternal(ClasspathClassFinder.java:347)
     weblogic.utils.classloaders.ClasspathClassFinder.getSource(ClasspathClassFinder.java:316)
     weblogic.application.io.ManifestFinder.getSource(ManifestFinder.java:75)
     weblogic.utils.classloaders.MultiClassFinder.getSource(MultiClassFinder.java:67)
     weblogic.application.utils.CompositeWebAppFinder.getSource(CompositeWebAppFinder.java:71)
     weblogic.utils.classloaders.MultiClassFinder.getSource(MultiClassFinder.java:67)
     weblogic.utils.classloaders.MultiClassFinder.getSource(MultiClassFinder.java:67)
     weblogic.utils.classloaders.CodeGenClassFinder.getSource(CodeGenClassFinder.java:33)
     weblogic.utils.classloaders.GenericClassLoader.findResource(GenericClassLoader.java:210)
     weblogic.utils.classloaders.GenericClassLoader.getResourceInternal(GenericClassLoader.java:160)
     weblogic.utils.classloaders.GenericClassLoader.getResource(GenericClassLoader.java:182)
     java.lang.ClassLoader.getResourceAsStream(Unknown Source)
     javax.xml.parsers.SecuritySupport$4.run(Unknown Source)
     java.security.AccessController.doPrivileged(Native Method)
     javax.xml.parsers.SecuritySupport.getResourceAsStream(Unknown Source)
     javax.xml.parsers.FactoryFinder.findJarServiceProvider(Unknown Source)
     javax.xml.parsers.FactoryFinder.find(Unknown Source)
     javax.xml.parsers.DocumentBuilderFactory.newInstance(Unknown Source)
     org.ajax4jsf.context.ResponseWriterContentHandler.<init>(ResponseWriterContentHandler.java:48)
     org.ajax4jsf.context.ViewResources$HeadResponseWriter.<init>(ViewResources.java:259)
     org.ajax4jsf.context.ViewResources.processHeadResources(ViewResources.java:445)
     org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:193)
     org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
     org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
On googling this seems to be an issue with java file handling on windows servers and I couldn't find a solution yet. Any recommendation or pointer is appreciated

Hi shubhu,
I just analyzed your partial Thread Dump data, the problem is that the ajax4jsf framework ResponseWriterContentHandler triggers internally a new instance of the DocumentBuilderFactory; every time; triggering heavy IO contention because of Class loader / JAR file search operations.
Too many of these IO operations under heavy load will create excessive contention and severe performance degradation; regardless of the OS you are running your JVM on.
Please review the link below and see if this is related to your problem.. This is a known issue in JBOSS JIRA when using RichFaces / ajaxJSF.
https://issues.jboss.org/browse/JBPAPP-6166
Regards,
P-H
http://javaeesupportpatterns.blogspot.com/

Performance issues with the Vouchers index build in SES

Hi All,
We are currently performing an upgrade for: PS FSCM 9.1 to PS FSCM 9.2.
As a part of the upgrade, Client wants Oracle SES to be deployed for some modules including, Purchasing, Payables (Vouchers)
We are facing severe performance issues with the Vouchers index build. (Volume of data = approx. 8.5 million rows of data)
The index creation process runs for over 5 days.
Can you please share any information or issues that you may have faced on your project and how they were addressed?

Check the following logs for errors:
1. The message log from the process scheduler
2. search_server1-diagnostic.log in /search_server1/logs directory
If the build is getting stuck while crawling then we typically have to increase the Java Heap size for the Weblogic instance for SES>

Performance Issue in Oracle EBS

Hi Group,
I am working in a performance issue at customer site, let me explain the behaviour.
There is one node for the database and other for the application.
Application server is running all the services.
EBS version is 12.1.3 and database version is: 11.1.0.7 with AIX both servers..
Customer has added memory to both servers (database and application) initially they had 32 Gbytes, now they have 128 Gbytes.
Today, I have increased memory parameters for the database and also I have increased JVM's proceesses from 1 to 2 for Forms and OAcore, both JVM's are 1024M.
The behaviour is when users are navigating inside of the form, and they push the down button quickly the form gets thinking (reloading and waiting 1 or 2 minutes to response), it is no particular for a specific form, it is just happening in several forms.
Gathering statistics job is scheduled every weekend, I am not sure what can be the problem, I have collected a trace of the form and uploaded it to Oracle Support with no success or advice.
I have just send a ping command and the reponse time between servers is below to 5 ms.
I have several activities in mind like:
- OATM conversion.
- ASM implementation.
- Upgrade to 11.2.0.4.
Has anybody had this behaviour?, any advice about this problem will be really appreciated.
Thanks in advance.
Kind regards,
Francisco Mtz.

Hi Bashar, thank you very much for your quick response.
If both servers are on the same network then the ping should not exceed 2 ms.
If I remember, I did a ping last Wednesday, and there were some peaks over 5 ms.
Have you checked the network performance between the clients and the application server?
Also, I did a ping from the PC to the application and database, and it was responding in less than 1 ms.
What is the status of the CPU usage on both servers?
There aren't overhead in the CPU side, I tested it (scrolling getting frozen) with no users in the application.
Did this happen after you performed the hardware upgrade?
Yes, it happened after changing some memory parameters in the JVM and the database.
Oracle has suggested to apply the latest Forms patches according to this Note: Doc ID 437878.1
Thanks in advance.
Kind regards,
Francisco Mtz.

Oracle Performance Issue

Hardware Configuration:
Regarding Oracle Performance Issue.
Configuration 1
================
SunV880 - Sunfire
32 GB RAM
14 numbers of 36GB hard disk
8 CPUs
CPU Speed 750MZ.
Software Configuration:
Oracle 8i
OS version - Solaris 8
Customized our own application - Namex
Configuration 2
================
Intel PIII - 750 MZ
2 GB RAM
2 CPUS
Software configuration
Oracle 8i
OS version linux 6.2
Customized our own application - Namex (multi threaded application)
We installed the oracle application in all hard disks. All tables
are splited in to separate hard disks.
OS installed in 1 hard disk.
namex application installed in 1 hard disk
Oracle installed in 1 hard disk.
All tables are splited in to other hard disks.
We are trying to insert some user databases in oracle table. We
achieved up to 150 records/second in Sun server. But in lower
configuration our application inserts up to 100 records/second.
(configuration 2)
We want improve our inserting database records/per rate
in Sun Server.
How to tune our oracle application parameter values in init.ora
file. Our application tries to insert up to 500 records per second.
But I can't able to achieve this value.
init.ora file
=============
db_name = "namex"
instance_name = namex64
service_names = namex64
control_files = ("/disk1/oracle64/OraHome1/oradata/Namex64/control01.ctl", "/disk1/oracle64/OraHome1/oradata/namex64/control02.ctl", "/disk1/oracle64/OraHome1/oradata/namex64/control03.ctl")
open_cursors = 300
max_enabled_roles = 145
#db_block_buffers = 20480
db_block_buffers = 604800
#shared_pool_size = 419430400
shared_pool_size = 8000000000
#log_buffer = 163840000
log_buffer = 2147467264
#large_pool_size = 614400
java_pool_size = 0
log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800
processes = 1014
# audit_trail = false # if you want auditing
# timed_statistics = false # if you want timed statistics
timed_statistics = true # if you want timed statistics
# max_dump_file_size = 10000 # limit trace file size to 5M each
# Uncommenting the lines below will cause automatic archiving if archiving has
# been enabled using ALTER DATABASE ARCHIVELOG.
# log_archive_start = true
# log_archive_dest_1 = "location=/disk1/oracle64/OraHome1/admin/namex64/arch"
# log_archive_format = arch_%t_%s.arc
#DBCA uses the default database value (30) for max_rollback_segments
#100 rollback segments (or more) may be required in the future
#Uncomment the following entry when additional rollback segments are created and made online
#max_rollback_segments = 500
# If using private rollback segments, place lines of the following
# form in each of your instance-specific init.ora files:
#rollback_segments = ( RBS0, RBS1, RBS2, RBS3, RBS4, RBS5, RBS6, RBS7, RBS8, RBS9, RBS10, RBS11, RBS12, RBS13, RBS14, RBS15, RBS16, RBS17, RBS18, RBS19, RBS20, RBS21, RBS22, RBS23, RBS24, RBS25, RBS26, RBS27, RBS28 )
# Global Naming -- enforce that a dblink has same name as the db it connects to
# global_names = false
# Uncomment the following line if you wish to enable the Oracle Trace product
# to trace server activity. This enables scheduling of server collections
# from the Oracle Enterprise Manager Console.
# Also, if the oracle_trace_collection_name parameter is non-null,
# every session will write to the named collection, as well as enabling you
# to schedule future collections from the console.
# oracle_trace_enable = true
# define directories to store trace and alert files
background_dump_dest = /disk1/oracle64/OraHome1/admin/Namex64/bdump
core_dump_dest = /disk1/oracle64/OraHome1/admin/Namex64/cdump
#Uncomment this parameter to enable resource management for your database.
#The SYSTEM_PLAN is provided by default with the database.
#Change the plan name if you have created your own resource plan.# resource_manager_plan = system_plan
user_dump_dest = /disk1/oracle64/OraHome1/admin/Namex64/udump
db_block_size = 16384
remote_login_passwordfile = exclusive
os_authent_prefix = ""
compatible = "8.0.5"
#sort_area_size = 65536
sort_area_size = 1024000000
sort_area_retained_size = 65536
DB_WRITER_PROCESSES=4
How to improve my performance activities on Oracle server.
Please guide me regarding this issue.
If anyone wants more info, please let me know.
Best regards,
Senthilkumar

Are you sure that it is not an application constraint ? i.e. the application can't handle so much data per second ? (application locks, threads )
Have you tried to write a simple test program, which inserts predefined data (which your application inserts) the same data, only changing keys ?
Then comparing the values from the 1st and the 2nd configuration ?
Did you check the way your application is communicating with oracle ? If it is TCP/ip (even on the local machine) then this is your main problem.
And one more thing, do you know if your application is able to run the load (inserts) of data on different threads (i.e. in parallel), because if is not, you won't be able to push the speed higher because your constraint is the speed of a single CPU. Consider running several process, which loads the data.
We had the same problem ot AIX machines with 4 cpus. Monitoring the machine, we found that only 25% (1 cpu) where in use. We had to run 4 processes to push the speed up. Check your system's overal load while running the 'load' (inserts).
log_checkpoint_interval = 10000
Check if this value is appropriate. Maybe you should set it to 0 (infinite). This will disable checkpoints on a 'number of undo record' basis. Checpoints will occure only on log switch.
How much redo files per redo groups do you have ? What is their size ? Are they on different disks ? How much redo data is generated by a single 'record' inserted ?
Hope i helped at least a little.

Socket based application - Performance Issues - Suggestions Needed

Hi All,
We have an application which basically has been developed using core java. Here is a high level information about the application:
a) It opens a serversocket which allows clients to connect to it.
b) For every new client connection, a separate thread is created and this thread deals with requests from clients, processing the data and replying back to clients.
c) Each socket is polled continuously and sockettimeout is 2 seconds. If there is a timeout, we handle the situation and socket is again read. So basically sockets is read every 2 seconds. If number of timeouts reaches a configurable value, we close the connection and thread is dropped as well.
d) In production, three instances of this application are running with the help of a cisco load balancer. It is there for last 5 years.
However there has always been some minor performance isssues and we have sorted them out using different types of garbage collectors, by introducing hardware load balancers, upgrading the code for new Java versions. It is currently running on 1.4.2.
However there has always been some performance issues and today while googling over internet I came across following on the bea website which says that core java sockets are not as efficients as native API. BEA has implemented its own APIs for weblogic. My queries are:
a) Are there any better Java Socket/network API (for solairs, I know Java is plateform independenet but there could be lib which also using native libs) which are much more efficient than Core Java.
b) We are getting the InputStream/OutputStream and creating objects of DataInputStream/DataOutputStream to read the data 'Byte-By-Byte'. Each byte can have different information thats why it is required. Are there any better way of getting info than what we are currently doing.
c) As I mentioned, we are continously polling the socket for read operation with a timeout value of 2 seconds. What is the better among the following from performance point of view: (1) Frequent read operation with a lesser timeout value or (2) Less Frequent read operations with larger timeout value. (3) Any better idea??
Please suggest few things or pointers which I could do to improve the performance of the applcations. Many thanks.
Thanks,Akhil
From BEA website:-
"Although the pure-Java implementation of socket reader threads is a reliable and portable method of peer-to-peer communication, it does not provide the best performance for heavy-duty socket usage in a WebLogic Server cluster. With pure-Java socket readers, threads must actively poll all opened sockets to determine if they contain data to read. In other words, socket reader threads are always "busy" polling sockets, even if the sockets have no data to read. This unnecessary overhead can reduce performance."

My recommendations:
- Always use a BufferedInputStream and BufferedOutputStream around the socket streams
- Increase the socket send and receive buffers to at least 32k if you are on a Windows platform where the default is a ridiculous 8k, which hasn't been enough for about 15 years.
- Your 2-second timeout is far too short. Increase it to at least 10 seconds.
- Your strategy of counting up to N short timeouts of S seconds each is completely pointless. Change it to one single timeout of N*S seconds. There is nothing to be gained by the complication you have introduced to this.

Transaction Timeout (BPEL v10.1.2.0.0, WebLogic 8.1 sp4)

We are attempting to process a transform on a medium sized xml doc (~4.5 MB). For the test case we are simply reading the the doc using the FileAdapter, performing a transformation, and then writing the result to a file using the FileAdapter once again. The flow works fine for smallish files (under ~4MB), however, when dropping a file greater than that size the flow fails once finished while writing entries to the BPEL audit log with a TransactionTimedOutException (see exception below).
I understand what is happening and why (it certainly takes longer than 2 mins to process the file). I have also done quite a bit of digging around for references to this issue and found several posts regarding bumping the transaction timeout value when running the OC4J container. My problem is that we are not running the OC4J container. I know how to manage the default transaction timeout value for WebLogic but it appears that the BPEL application doesn't seem to be honoring the default transaction timeout on the WL Server. I have come to this conclusion for two reasons: first, the default transaction timeout on the WL Server (before modification) is 30 seconds, not the 120 seconds that this transaction is timing out on. second, changing the transaction timeout value on the WebLogic server has no impact on this issue what so ever. I can set the transaction timeout to any value I like, the process ALWAYS times out after 120 seconds.
Is there another setting on the BPEL server that I may have missed that is overriding the default timeout, i.e. is it possible that when the BPEL server process is starting the transaction it is setting the timeout on the TransactionManager in code prior to starting the transaction?
Any pointers are greatly appreciated.
------------- START STACK TRACE ------------------
<2007-03-15 13:50:24,625> <ERROR> <default.collaxa.cube> <BaseCubeSessionBean::logError> Error while invoking bean "cube delivery": Cannot insert audit trail.
The process domain was unable to insert the current log entries for the instance "10601" to the audit trail table. The exception reported is: The transaction is no longer active - status: 'Rolled back. [Reason=weblogic.transaction.internal.TimedOutException: Transaction timed out after 120 seconds
Name=[EJB com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.handleInvoke(java.lang.String,com.oracle.bpel.client.auth.DomainAuth)],Xid=BEA1-0021B65431A170F9CFEF(31469464),Status=Active,numRepliesOwedMe=0,numRepliesOwedOthers=0,seconds since begin=120,seconds left=60,activeThread=Thread[ExecuteThread: '9' for queue: 'default',5,Thread Group for Queue: 'default'],XAServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(ServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(state=ended,assigned=none),xar=weblogic.jdbc.wrapper.JTSXAResourceImpl@154d033,re-Registered = false),SCInfo[f58_integration+orabpelServer]=(state=active),properties=({weblogic.transaction.name=[EJB com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.handleInvoke(java.lang.String,com.oracle.bpel.client.auth.DomainAuth)], weblogic.jdbc=t3://127.0.0.1:9700}),OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=orabpelServer+127.0.0.1:9700+f58_integration+t3+, XAResources={},NonXAResources={})],CoordinatorURL=orabpelServer+127.0.0.1:9700+f58_integration+t3+)]'. No further JDBC access is allowed within this transaction.
Please check that the machine hosting the datasource is physically connected to the network. Otherwise, check that the datasource connection parameters (user/password) is currently valid.
sql statement: INSERT INTO audit_trail( cikey, domain_ref, count_id, block, block_csize, block_usize, log ) VALUES( ?, ?, ?, ?, ?, ?, ? )
<2007-03-15 13:50:24,643> <ERROR> <default.collaxa.cube.engine.dispatch> <BaseScheduledWorker::process> Failed to handle dispatch message ... exception ORABPEL-05002
Message handle error.
An exception occurred while attempting to process the message "com.collaxa.cube.engine.dispatch.message.invoke.InvokeInstanceMessage"; the exception is: Transaction Rolledback.: weblogic.transaction.internal.TimedOutException: Transaction timed out after 120 seconds
Name=[EJB com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.handleInvoke(java.lang.String,com.oracle.bpel.client.auth.DomainAuth)],Xid=BEA1-0021B65431A170F9CFEF(31469464),Status=Active,numRepliesOwedMe=0,numRepliesOwedOthers=0,seconds since begin=120,seconds left=60,activeThread=Thread[ExecuteThread: '9' for queue: 'default',5,Thread Group for Queue: 'default'],XAServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(ServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(state=ended,assigned=none),xar=weblogic.jdbc.wrapper.JTSXAResourceImpl@154d033,re-Registered = false),SCInfo[f58_integration+orabpelServer]=(state=active),properties=({weblogic.transaction.name=[EJB com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.handleInvoke(java.lang.String,com.oracle.bpel.client.auth.DomainAuth)], weblogic.jdbc=t3://127.0.0.1:9700}),OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=orabpelServer+127.0.0.1:9700+f58_integration+t3+, XAResources={},NonXAResources={})],CoordinatorURL=orabpelServer+127.0.0.1:9700+f58_integration+t3+)
at weblogic.transaction.internal.ServerTransactionImpl.wakeUp(ServerTransactionImpl.java:1614)
at weblogic.transaction.internal.ServerTransactionManagerImpl.processTimedOutTransactions(ServerTransactionManagerImpl.java:1117)
at weblogic.transaction.internal.TransactionManagerImpl.wakeUp(TransactionManagerImpl.java:1881)
at weblogic.transaction.internal.ServerTransactionManagerImpl.wakeUp(ServerTransactionManagerImpl.java:1034)
at weblogic.transaction.internal.WLSTimer.trigger(WLSTimer.java:31)
at weblogic.time.common.internal.ScheduledTrigger.run(ScheduledTrigger.java:243)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.time.common.internal.ScheduledTrigger.executeLocally(ScheduledTrigger.java:229)
at weblogic.time.common.internal.ScheduledTrigger.execute(ScheduledTrigger.java:223)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
; nested exception is: weblogic.transaction.internal.TimedOutException: Transaction timed out after 120 seconds
Name=[EJB com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.handleInvoke(java.lang.String,com.oracle.bpel.client.auth.DomainAuth)],Xid=BEA1-0021B65431A170F9CFEF(31469464),Status=Active,numRepliesOwedMe=0,numRepliesOwedOthers=0,seconds since begin=120,seconds left=60,activeThread=Thread[ExecuteThread: '9' for queue: 'default',5,Thread Group for Queue: 'default'],XAServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(ServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(state=ended,assigned=none),xar=weblogic.jdbc.wrapper.JTSXAResourceImpl@154d033,re-Registered = false),SCInfo[f58_integration+orabpelServer]=(state=active),properties=({weblogic.transaction.name=[EJB com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.handleInvoke(java.lang.String,com.oracle.bpel.client.auth.DomainAuth)], weblogic.jdbc=t3://127.0.0.1:9700}),OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=orabpelServer+127.0.0.1:9700+f58_integration+t3+, XAResources={},NonXAResources={})],CoordinatorURL=orabpelServer+127.0.0.1:9700+f58_integration+t3+)
------------- END STACK TRACE ------------------

Hi
i am facing a similar problem..did u find the solution for this problem?
Please pass the solution/workaround u performed for solving this...
Thanks & Regards
Subramanian

Weblogic 8.1 SP4 on AIX Performance issues

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