Web cache documentation

Hi everyone,
I've installed Oracle9i Application Server(v1.0.2.2.2) for Windows NT/2000, on two single nodes with the repository on a Windows 2000 Cluster.
I would like to configure Web Cache for load balancing, where is it possible to find documentation about Administering Web Cache, considering that on OTN there is the one related to the last release of OAS?
Regards
Fabrizio

You can use webcache 902 with 9iAS r1, the later version of webcache is a preferrable option and works just fine.
-JP

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Linux Web Cache Standalone Documentation

Hello, I have downloaded the as_linux_x86_webcache_101202.cpio, however I am unable to find the installation documentation, it does not come with the download and I am also unable to find it on OTN. Can some direct me to where I may be able to locate this document? Regards Stephen

Again bit late comment but just in case if you haven't yet found the solution.
Yes, you can use this file (as_linux_x86_webcache_101202.cpio) to install Standalone Web Cache. You can also install it off of Oracle Application Server Companion CD.
I tried it and when I extract this file here is what I see:
$ ls -l
total 285780
-rw-r--r-- 1 oracle dba 292340224 Sep 17 15:14 as_linux_x86_webcache_101202.cpio
drwxr-xr-x 5 oracle dba 4096 Dec 1 2005 Disk1
$cd Disk1
$ls -l
total 20
drwxr-xr-x 4 oracle dba 4096 Dec 1 2005 install
-rwxr-xr-x 1 oracle dba 5189 Dec 1 2005 runInstaller
drwxr-xr-x 9 oracle dba 4096 Dec 1 2005 stage
drwxr-xr-x 4 oracle dba 4096 Dec 1 2005 utils
So there it (runInstaller) is under Disk1 directory.
Thanks
Shail

Oracle Web Cache Administration and Deployment Guide

Does anyone know where the Oracle Web Cache Administration and Deployment Guide is?
From Oracle9iAS Documentation Library CD-ROM,
it says this document is in OTN. However, I just can't find this document in OTN.
Any idea?

Rick -
try this link on for size:
http://technet.oracle.com/docs/products/ias/doc_library/1022doc_otn/caching.102/a90372/toc.htm
To get to the (iAS documentation, try this path through technet
Top Level
-> click documentation link on RHS
-> click Oracle9i Application Server link
-> click Generic Documentation Library link (HTML) or (PDF)
That should get you to the documentation library, from which you can view all the component doc, install guides, performance guides, etc.
null

Web Cache Connection Error

Hi All,
I had installed Application Server 10g on one Window 2000 Server machine. It was working fine. But as all the components of Application Server were installed on one machine thats why its performance was bad.
So i decided to move the Oracle AS Portal to another machine. I installed only oracle portal and its required subcomponets on another machine. The new instance used the old server's metadata and other services.
The Portal Now works fine but there are certain issues.
First is that when i deploy an application on the new portal home and when try to register it, it gives me following error:
=============================================================
Internal error (WWC-00006)
The provider URL specified may be wrong or the provider is not running. (WWC-43176)
=============================================================
The Provider URL is also correct and the the provider is also running. as when i open the URL in browser it gives me success page.
The Second Error is of Web Cache. and i think it could be the cause of the first error as well.
When i go to the global Setting of the Portal/Administer, and then to Cache Tab and check Clear The Entire Web Cache and press apply i get the following error.
=============================================================
Could not open web cache connection. (WWC-40019)
=============================================================
I checked everything and everything seams to be fine. Remember that now the WebCache is pointing to the new server webcache services.
I need help in removal of these problems.
Regards
Osama Hashmi

Hi Osama,
See my reply in the Install forum:
Just checking, have you reviewed the OracleAS Portal Error Messages Guide for the error message "WWC-40019: Could not open web cache connection?"
This guide can be found on OTN at http://www.oracle.com/technology/documentation/appserver1012.html and it t describes this error and what can be done to solve it in detail.

Oracle Web Cache - Load Balancer Mode

Hello,
I am facing a problem related to fault tolerance in Oracle Web Cache
My environment:
2 Nodes of Oracle Application Server 10.1.3 configured in cluster.
have configured Oracle Web Cache (in LoadBalancer mode only) to simulate a BigIP load balancing above these two oc4j node. This to be used as fault tolerance so if one http request will fail the LoadBalancer will direct it to the second oc4j (its http server).
I have used the defaults recommended by Oracle documentation for configuration clustering load balancer using Oracle Web Cache and using JSESSIONID for Session binding with oc4j-type. I left all other cluster/server setting to default
Problem:
The problem is when I am shutting down one oc4j instance the Oracle Web Cache tries to keep the session with the un-available oc4j node and not direct the session to the other oc4j node.
If I choose to start a new session (loose current work) than it does work with the second (alive) oc4j node, but than where is its fault tolerance??
What do i need to do to keep working with the same session over the second oc4j node. My deployed Web App is enabled to work in cluster, using Oracle Application Server console. Here is its orion-application.xml
+<?xml version="1.0"?>+
+<orion-application xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://xmlns.oracle.com/oracleas/schema/orion-application-10_0.xsd" deployment-version="10.1.3.1.0" default-data-source="jdbc/OracleDS" component-classification="external"+
schema-major-version="10" schema-minor-version="0" >
+     <web-module id="session_rep" path="session_rep.war" />+
+     <persistence path="persistence" />+
+     <principals path="principals.xml" />+
+     <jazn provider="XML" />+
+     <log>+
+          <file path="application.log" />+
+     </log>+
+     <cluster allow-colocation="false">+
+     <replication-policy trigger="onRequestEnd" scope="modifiedAttributes"/>+
+     <flow-control-policy enabled="false" />+
+          <protocol>+
+               <peer>+
+                              <opmn-discovery/>+
+               </peer>+
+          </protocol>+
+     </cluster>+
+</orion-application>+
Will appreciate any help !

is OHS/apache deployed between web cache and your OC4J? if so, i think since OHS/apache is alive to web cache, web cache keeps routing to it.
maybe in your script, you can shutdown both OHS/apache and OC4J totgether so web cache can correctly route.

Web Cache Default Install Caching ESI fragments

Hi,
My platform is Windows 2000 Advanced Server with the latest patches. The web cache is as of the version install from the following file downloaded at ITN 9ias903_win32.zip.
I just need a quick answer as the web cache rule sets are very complex.
http://192.168.20.101:7778/home.html has just these lines
HTML><HEAD><TITLE>TPC-W Home Page</TITLE>
<META http-equiv=Content-Type content="text/html; charset=big5">
<META content="MSHTML 6.00.2800.1126" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<H1 align=center>TPC Web Commerce Benchmark (TPC-W)</H1>
<P align=center><IMG height=67 src="../tpcw/Images/tpclogo.gif"
width=288 align=bottom border=0></P>
<H2 align=center>Home Page</H2>
<esi:include src="http://192.168.20.101:7777/j2ee/servlet/TPCW_home_interaction" />
<TABLE ALIGN="center" BGCOLOR="#c0c0c0" BORDER="0" CELLPADDING="6" CELLSPACING="0" WIDTH="700">
<TR ALIGN="CENTER" BGCOLOR="#ffffff" VALIGN="top">
<TD COLSPAN="2" VALIGN="MIDDLE" WIDTH="300">
<IMG SRC="../tpcw/Images/whats_new.gif" ALT="New Product">
http://192.168.20.101:7778/home.html
http://192.168.20.101:7778/home.html
http://192.168.20.101:7778/home.html?test=test
Will Web Cache from default install automatically cache the first url and the second url will just fetch the doc from cache?
How about the third url? Will web cache fetch the cached contents or bypasses the cache?
Will Web Cache caches the images files ?
../tpcw/Images/whats_new.gif
Regards,
SC

I can't open any of the links you provided. Anyway, you need to set up caching rules in the config for whatever you want to cache, whether it's html files or gifs or whatever. Either that, or you need to use surrogate-control response headers.
If you haven't already done so, my suggestion is that you read the relevant sections of the documentation and then follow up on this posting if you have further questions.

Web cache listen ports

We have set up Web cache on a Windows NT 4.0 box to cache ASP pages served up by another box running IIS.
Using a listen port of 80 and a application web server with the host port entry set to 80 everything works fine. However we have a number of additional sites running on different ports under IIS - e.g. 84, 85 etc. When I add these ports to the application web server list and create an equivalent entry in the web cache listen ports list I always get the incorrect content served up by web cache.
For example I request /servername:84/home/main.asp and I get server /servername:85/home/main.asp
Is there another setting that I have to use to get this to work correctly ?
Thanks in advance
Niels Montanana
Technology Director
Practical Law Company, London, England

Try the virutal hosting workaround I documented in a disussion topic titled "Virtual Hosting in Web Cache 2.0.0.x". Note that you will need to change your origin Web Server config to use name-based virtual hosting instead of IP/Port-based virtual hosting.
The upcoming 9.0.2 release of Web Cache will support a more flexible virtual hosting mechanism.

Web Cache Parameters?

Hi Friends,
Can Anybody suggest a way to get the Web Cache CurrentTime/CurrentWebcacheStart/TimeSinceStart from the Command Line.The Web Cache GUI Tool running on port number 4000 shows All these details.My Problem is I need these kind of parameters from the Command Line.
Hope to Hear From your Side
Regards,
G Sreekumar

I'm not sitting at a machine with access to a running cache, so I can't verify this just now. But somehow I don't think you can access these stats from the current webcachectl utility. According to the documentation, webcachectl status only gives you process id info: http://download-west.oracle.com/docs/cd/A97688_08/generic.903/b10055/admin.htm#1009289
Please log an enhancement request via Metalink if you need this functionality.
Thank you.

Web Cache with UCM server

Hi All,
Can anyone help me in knowing how to configure webcache on top of UCM server and what is webcache invalidation?
If you provide any link of documentation for that ,then it will be a great help.
Thanks,
Shruti

http://oamidam.wordpress.com/category/oracle-web-cache/

Web Cache 'Ping URL' not working.

Hi,
I have recently installed a Webcache clustered pair which sit in front of OHS which reverse proxys back to OUCM/Web Logic, my OWC version is 11.1.1.2 and am looking for some clarification of how the Ping URL actually works in Web Cache.
When OHS is shutdown, Webcache detects the service is down and prevents it from servicing requests, however it will not mark the service as down when I intentionally set ping URL to a page that does not exist generating a 404, will Ping URL polling only mark a server as being down if a 500 error is generated?
Something else I would like clarification of is 'Ping Interval', I have set this to be aggressive at '1' however I do not see any polling traffic or see any hits in OHS log that indicate polling of the Ping URL is taking place.
Thanks in advance,
Mark.

Not sure I need any update to this now, I've just read through the help section 'help/edit_add_appserver.htm' and can see that a 404 is not considered a failure and also that the server only starts to poll when the failover threshold has been reached.
This would explain why the server was not being marked as down, although I'm still not sure why I do not see the polling traffic in Apache logs but I can live with that :)
Cheers,
Mark.

Standalone webcache or Web cache from Oracle Apps Server 10.1.2.0.2?

Hi
I am installing web cache on two servers in web tier and J2EE server (with OHS) on another two servers in apps tier. Should I use standalone webcache or install from Oracle Apps Server package? If I choose Oracle Apps Server package, I have to disable Home, HTTP components. But it is DCM managed. Any suggestions?
And should I deploy my OHS servers on web cache servers in the web tier? In future we want to expand J2EE installation, we will deploy Portal with SSO, OID etc.
Regards
Shen Jie

Shen Jie,
Please review the Enterprise Deployment to see what are the best architectures.
Hope this helps.
Deepak

Error installing EM10gR2 Configuration assistant "Web Cache Configuration A

I am getting an error when the web cache configuration assistant is running. Here is the output of the message:
Output generated from configuration assistant "Web Cache Configuration Assistant" (attempt 2):
Command = /oracle/oms10g/jdk/bin/java -DORACLE_HOME=/oracle/oms10g -Djava.net.preferIPv4Stack=true -classpath /oracle/oms10g/sysman/webapps/emd/WEB-INF/lib/webcachecfg.jar:/oracle/oms10g/sysman/webapps/emd/WEB-INF/lib/emd.jar:/oracle/oms10g/lib/emSDK.jar:/oracle/oms10g/dcm/lib/dcm.jar:/oracle/oms10g/jlib/repository.jar:/oracle/oms10g/lib/xmlparserv2.jar:/oracle/oms10g/jlib/emConfigInstall.jar:/oracle/oms10g/jdbc/lib/classes12.zip:/oracle/oms10g/jdbc/lib/nls_charset12.jar:/oracle/oms10g/jlib/jndi.jar:/oracle/oms10g/jlib/rt.jar:/oracle/oms10g/jdk/lib/i18n.jar:/oracle/oms10g/jlib/ldapjclnt10.jar:/oracle/oms10g/jlib/ojmisc.jar:/oracle/oms10g/j2ee/home/jazn.jar:/oracle/oms10g/j2ee/home/jaas.jar oracle.ias.webcache.config.WebcacheConfig -oh /oracle/oms10g
Failed in smi manipulation().
A problem has occurred reading the initial configuration and storing it into repository
Resolution:
Please refer to the base exception for resolution, or call Oracle support.
Base Exception:
/oracle/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
Resolution:
Please make sure the values entered in OHS configuration files are correct.
oracle.ias.sysmgmt.exception.InvalidConfigurationException: Base Exception:
/oracle/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
Resolution:
Please make sure the values entered in OHS configuration files are correct.
     at oracle.ias.sysmgmt.repository.plugin.advanced.apache.StateTranslator.checkConfigFileValidity(Unknown Source)
     at oracle.ias.sysmgmt.repository.plugin.advanced.apache.StateTranslator.validateConfigDuringEvaluate(Unknown Source)
     at oracle.ias.sysmgmt.repository.plugin.advanced.apache.PlugInImpl.localConfigValidation(Unknown Source)
     at oracle.ias.sysmgmt.repository.DcmPlugin.localConfigValidation(Unknown Source)
     at oracle.ias.sysmgmt.repository.RepositoryImpl.performLocalValidation(Unknown Source)
     at oracle.ias.sysmgmt.repository.SyncUpHandler._updatePluginConfigData(Unknown Source)
     at oracle.ias.sysmgmt.repository.SyncUpHandler.syncUpFromLocalFiles(Unknown Source)
     at oracle.ias.sysmgmt.repository.RepositoryImpl.syncUpFromLocalFiles(Unknown Source)
     at oracle.ias.sysmgmt.utility.editpropagator.PropagateLocalEdit.repositoryInit(Unknown Source)
     at oracle.ias.sysmgmt.persistence.utility.PMUtility.initConfiguration(Unknown Source)
     at oracle.ias.sysmgmt.task.TaskMaster.initConfiguration(Unknown Source)
     at oracle.ias.sysmgmt.task.TaskMaster.sysInit(Unknown Source)
     at oracle.ias.sysmgmt.task.TaskMaster.sysInit(Unknown Source)
     at oracle.ias.sysmgmt.task.InstanceManager.sysInit(Unknown Source)
     at oracle.ias.sysmgmt.task.InstanceManager.init(Unknown Source)
     at oracle.ias.sysmgmt.EntryPoint.init(Unknown Source)
     at oracle.ias.webcache.config.WebcacheConfig.smiSetup(WebcacheConfig.java:483)
     at oracle.ias.webcache.config.WebcacheConfig.smiEnableWebcache(WebcacheConfig.java:454)
     at oracle.ias.webcache.config.WebcacheConfig.enableConfiguration(WebcacheConfig.java:299)
     at oracle.ias.webcache.config.WebcacheConfig.main(WebcacheConfig.java:87)
Configuration assistant "Web Cache Configuration Assistant" failed
The "/oracle/agent10g/cfgtoollogs/configToolFailedCommands" script contains all commands that failed, were skipped or were cancelled. This file may be used to run these configuration assistants outside of OUI. Note that you may have to update this script with passwords (if any) before executing the same.-----------------------------------------------------------------------------
My etc/hosts file looks like:
cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
172.24.254.25 k25
Ugh!

sorry, a little bit late but i had the same problem.
/oracle/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
simple make the link "ln -s libdb.so.3 libdb.so.2" in the /usr/lib directory.
regard´s
roland

Cisco Web Caching Solution

Hi There,
I need a high availability web caching solution for 500 users, preferential with proxy funcionality.
Cisco had the Cisco Web Caching Engine, but it is End-of-Sales already. The new product that will replace the EOS product, is Wide Area Application Engine (WAE) plataforms. Is that right?
The Cisco Global Price List has a SKU product SE512-IPROXY-K9 (Security / iProxy WAE-512 bundle, 1GB MEM, 1 250GB HDD Incl.).
The question are:
The SKU product SE512-IPROXY-K9 is the right product for my needs?
What is the difference between the SKU SE512-IPROXY-K9 and the SKU WAE-512-K9?
Regards,
Pedro Vasques

Hi Pedro,
The WAE product line does WAN Optimization which includes HTTP optimization. The WAN Optimization solution works between two WAEs (one being at a Branch office and the other being at Data Center ). When employees at branch office tries to access resources like Servers at Data Center their TCP based traffic gets optimized. For more info pl go to http://www.cisco.com/go/waas
Cisco's Web Caching was a different solution. It caches the web objects when first user goes to a given web site. The following user requests will be served locally as long as cache history is available for that web page.
I suggest you contact either a Cisco partner or Cisco representative in your area.
thanks
Nat

Problem in web cache cluster in 10.1.2.3

Hi,
I'm using webcache clustering in Oracle AS 10.1.2. and there are 3 cluster members.
But all the requests are getting routed through cluster member 1. When i'm bringing down services(HTTP, webcache,webcache admin) of member1 i'm unable yto access my website.
when member_1 is working, i'm able to access site from all 3 web servers through both web cache http listener port and OHS listener port.
Help !

I understand this is not an EBS related question, so please post your question in the appropriate forum for a better/faster reply -- https://forums.oracle.com/forums/category.jspa?categoryID=13
Thanks,
Hussein

Problem in web cache cluster in 10.1.2

Hi,
I'm using webcache clustering in Oracle AS 10.1.2. and there are 3 cluster members.
But all the requests are getting routed through cluster member 1. When i'm bringing down services(HTTP, webcache,webcache admin) of member1 i'm unable yto access my website.
when member_1 is working, i'm able to access site from all 3 web servers through both web cache http listener port and OHS listener port.
Help !

I understand this is not an EBS related question, so please post your question in the appropriate forum for a better/faster reply -- https://forums.oracle.com/forums/category.jspa?categoryID=13
Thanks,
Hussein

Web cache documentation

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