Oracle9iAS Web Cache Invalidation?

Hi All,
Any body knows the default uid/pwd of Oracle9iAS Web Cache Invalidation running on port number 4001
regds

invalidator:invalidator I think

Similar Messages

Oracle9iAS Web Cache Demo Wrong link

Cooking with Code - Oracle9iAS Web Cache Demo
http://www.oracle.com/pls/ebn/popup.on_demand?p_shows_id=587023

Hello,
Thats one mechanism we are trying to explore at our end. The only thing is that we are not send the invalidation requests from EJB but from the classes provided by the Web framework we are using. What we are trying to achoeve is that if we make the invalidation as the first step of any Business Process transaction, and if it fails the entire transaction is rolled-back and we donot change the data. That way atleast web-cache is uptodate but the flip side is that Business Processes suffer.....

Oracle9iAS Web Cache for PL/SQL ????????

Hi,
I installed Oracle9iAS Web Cache.
I could cache any web site which write by asp, jsb,... but I can not cache web site http://www.vnn.vn because it write by pl/sql.
How do I cache web site which write by pl/sql, ex that web site.
Please, give me email follow address : [email protected]
Thanks
Nguyen Tien Dat

You should have no problem using Web Cache to accelerate a PL/SQL driven site. Any site that delivers content via HTTP is a good candidate for Web Cache. Try downloading the standalone Web Cache software from OTN, and be sure to read the manual to learn about how it works and how to configure it.

Oracle9iAS Web Cache Demo Broken link

the link Cooking with Code - Oracle9iAS Web Cache Demo
http://www.oracle.com/pls/ebn/popup.on_demand?p_shows_id=587023
is broken(ErrorDocument 404 This page has generated a 404
error.) . it's accessible from the main otn page.

HI,
does this sound like total malarkey to you?
No, not at all. JPG is the commonly used format for images for the web.
Open an image file in Preview. From the menu bar click File / Save As. Select JPG.
As an example go here: http://www.google.com/images?hl=en&source=imghp&biw=1277&bih=566&q=flowers&gbv=2 &aq=f&aqi=g10&aql=&oq=&gs_rfai=
Right or control click any image then click Inspect Element. Type in JPG in the search field on the right, press return or enter on your keyboard. You'll see JPG highlighted.
Carolyn

What is Oracle9iAS Web Cache ?

Hi All,
What is Oracle9iAS Web Cache Release 9.0.2.0.0 in Win2k SP3 ?
I have developing web applications using jsp,servlets on OC4J and in what way can Oracle9iAS be used in my web applications ?
Thanks & Regards,
Kumar.

Also, please check out JESI tags that you can use in your JSPs to leverage Web Cache.
more info at
http://otn.oracle.com/docs/products/ias/doc_library/90200doc_otn/web.902/a95883/jesitags.htm#1016996
-Prasad

Web Cache Invalidation & HA

Hi Web Cache Team,
We are currently using Webcache 9.0.3.1 cluster in our production environment with Oracle 9iAS as the app server. Now there is some critical content which is served (for better performance) through the Web Cache. We have implemented the invalidation mechnism using the invalidation APIs. But the problem is if for some reason the invalidation mechanism fails then what is the alternate route to invalidate the cached contents as they will be otherwise serving wrong data. Let me give an example:
Case 1: Web cache is down
Solution: Well in this case we are safe as even the users of the system will not be able to get the Stale data from cache.
Case 2: The webcache is up but the link from n/w link from App Server to the webcache (via Load Balancers) is down. In this case our application will NOT be able to invalidate the cache if the underlying data changes. Moreover the users will continue to be served old content.
Solution: How can we invalidate or notify cache in this case? Use DMS APIs ???
Case 3: Both the Webcache & Network links are fine but in invalidation code (written in Java) throws an exception.
Solution: POssibly we can trap all the exceptions in the invalidation logic and do something..... what???
Any ideas will be highly appreciated.

Hello,
Thats one mechanism we are trying to explore at our end. The only thing is that we are not send the invalidation requests from EJB but from the classes provided by the Web framework we are using. What we are trying to achoeve is that if we make the invalidation as the first step of any Business Process transaction, and if it fails the entire transaction is rolled-back and we donot change the data. That way atleast web-cache is uptodate but the flip side is that Business Processes suffer.....

Web Cache Invalidation

Hi,
Having a few problems invalidating based on query string parameters.
I want to invalidate the "all" URLs with the following parameters: "CompanyCode=VOD"
I'm sending the following invalidation message :
<?xml version="1.0" ?>
<!DOCTYPE INVALIDATION SYSTEM "http://www.oracle.com/webcache/90200/WCSinvalidation.dtd">
<INVALIDATION VERSION="WCS-1.0">
<OBJECT>
<ADVANCEDSELECTOR URIPREFIX="/" HOST="server.com:4001" URIEXP="">
<OTHER TYPE="SUBSTRING" NAME="QUERYSTRING_PARAMETER" VALUE="CompanyCode=VOD"/>
</ADVANCEDSELECTOR>
<ACTION REMOVALTTL="5"/>
</OBJECT>
</INVALIDATION>
There is a file called:
server.com:7777/pages/companyPage.jsp?lang=en&CompanyCode=VOD
Invalidation Response Received:
<?xml version="1.0"?>
<!DOCTYPE INVALIDATIONRESULT SYSTEM "http://www.oracle.com/webcache/90200/WCSinvalidation.dtd">
<INVALIDATIONRESULT VERSION="WCS-1.0">
<SYSTEM>
<SYSTEMINFO NAME="WCS_CACHE_NAME" VALUE="xldn0193dap.ldn.swissbank.com-WebCache"/>
<SYSTEMINFO NAME="WCS_NUM_OBJECT" VALUE="0"/>
</SYSTEM>
<OBJECTRESULT>
<ADVANCEDSELECTOR URIPREFIX="/" HOST="server.com:4001" URIEXP="" >
<OTHER TYPE="SUBSTRING" NAME="QUERYSTRING_PARAMETER" VALUE="CompanyCode=VOD" />
</ADVANCEDSELECTOR>
<RESULT ID="1" STATUS="SUCCESS" NUMINV="0"/>
</OBJECTRESULT>
</INVALIDATIONRESULT>
Basically, I want to be able to just specify the parameter and then invalidate anything with this query string parameter. Keep getting NUMINV=0 though.
Any help would be gratefully received.
Tks,
Ger

It's ok guys, sorted it. Was calling wrong method in AdvancedSelectorInvalidator. Should have been calling:
AdvancedSelectorInvalidator advInv =
new AdvancedSelectorInvalidator(
uriPrefix);
Which generates:
<ADVANCEDSELECTOR URIPREFIX="/">

Sample app: Web Cache and ESI

Download a new sample application and learn how to deliver dynamic, personalized content faster with Oracle9iAS Web Cache and Edge Side Includes (ESI). Oracle9iAS Web Cache and ESI can also accelerate the performance of e-business applications and boost productivity of employee-facing applications across an intranet.
Regards,
-rh

The source code and docs have been updated.

(WWC-40019) web cache connection error

Dear All,
I installed Oracle9iAS Release 2 Portal & Wireless installation type on my PC and the Oracle Infrastructure on another PC. When i tried to follow the described steps to shutdown my Oracle9iAS instance and then the Infrastructure instance to increace the RAM size of the Infrastructre machine and when i tried to startup the infrastructure and then my portal instance. I faced with the problem that my portal instance can't connect to the web cache and got the following error message :
Error: Could not open web cache connection. The portal use-web-cache setting is set to ON while web cache
may be down. (WWC-40019)
Any help will be appreciated.
Regards,
Mohammed Amin
[email protected]

This error could happen because of various causes. These are mentioned in the Config Guide.
Oracle9iAS Portal Configuration Guide Release 2 (9.0.2)
8.1 Oracle9iAS Web Cache related issues
Error: Could not open web cache connection. The portal use-web-cache setting is set to "on" while web cache may be down. (WWC-40019)
http://portalcenter.oracle.com/pls/ops/docs/FOLDER/COMMUNITY/CONFIGHTML/cgtroub.htm#1015385
Most often the reason is that of wrong Web Cache related config. info.in the Portal.
The following doc on scripts might help you address the config. issue
B.2 Oracle9iAS Web Cache configuration scripts
http://portalcenter.oracle.com/pls/ops/docs/FOLDER/COMMUNITY/CONFIGHTML/cgscript.htm#639250
If your problem is still not sovled you might want to read the following sections
6.4 Configuring Load Balancing Routers
http://portalcenter.oracle.com/pls/ops/docs/FOLDER/COMMUNITY/CONFIGHTML/cgmidfw.htm#1006335
6.8 Configuring Oracle9iAS Portal to Work with Oracle9iAS Web Cache
http://portalcenter.oracle.com/pls/ops/docs/FOLDER/COMMUNITY/CONFIGHTML/cgmidfw.htm#1009317
Hope this helps.
- Senthil

Web Cache Error

We are occassionally getting the following error in various scenarios -- in development or just browsing the site:
"Oracle Web Cache Network Error"
Oracle Web Cache encountered a network error when communicating with the application web server.
We have Web Cache installed on the same server as the portal application, but an Oracle consultant who was in a few weeks ago said we had more than enough capacity. Any ideas? We're on Oracle Portal Version: 3.0.9.8.2 and

The error you are seeing is usually the result of a slow response from your origin server, although it could be something else. If you provide
a snippet of your Web Cache event log (verbose), I'll be able to assist you better.
For now, let's assume it is due to a slow origin server response. On a cache miss, if the Web Cache doesn't receive a response
from the origin server within a given time interval, it will close the connection with the origin server and respond to the browser with
a network apology page. This is the page you are seeing. There are ways to correct this.
First of all, you should modify the network apology page in order to customize it for your application or web site. The file is located in the $ORACLE_HOME/webcache/docs directory.
If you're using Web Cache 9.0.2.x, the default origin server timeout is 3600 seconds. You probably won't have to change this, but if you want to, then
please refer to the "Oracle9iAS Web Cache v9.0.2.0 Administration and Deployment Guide", available on OTN.
The relevant section is" Chapter 6, Task 7: Configure Network Timeouts."
If you're running Web Cache 2.0.0.x, the default origin server response timeout is 30 seconds. This default was chosen because we felt
that no application should take more than 30 seconds to respond to a user's request. Since then, we've learned that a lot of apps out there,
especially business intelligence apps, have complex queries that take several minutes, if not hours, to complete. To change this default timeout, you need to modify your internal.xml
file. Here's a snippet from the 2.0.0.4 readme.html file describing how to do this:
3.0 Network Apology Pages
When Oracle Web Cache sends requests to an application Web server, Oracle Web Cache permits the application Web server 30 seconds in which to
generate a response for the browser. If the application is unable to generate a response within that time, Oracle Web Cache sends a network apology
page to the browser.
If 30 seconds is not sufficient, then you can change the default settings of the OSSEND_TIMEOUT and OSRECV_TIMEOUT attributes in the
internal.xml file:
OSSEND_TIMEOUT: Network round-trip time (latency) between Oracle Web Cache and the application Web server. The 20 second default of
the OSSEND_TIMEOUT attribute is usually sufficient for most operating systems.
You can determine the latency to the application Web server by issuing the the following command from the Oracle Web Cache computer:
ping -s application_Web_server
This command provides output similar to the following:
PING sales.us.acme.com: 56 data bytes
64 bytes from sales.us.acme.com (130.35.45.34): icmp_seq=0. time=20. ms
64 bytes from sales.us.acme.com (130.35.45.34): icmp_seq=0. time=21. ms
If the time value is over 20 seconds, then increase the OSSEND_TIMEOUT attribute value.
OSRECV_TIMEOUT: Latency and application Web server processing time. The default is 30 seconds.
You can determine the processing time by sending a sample request to the application Web server and monitoring the time to process the
request. If the processing time is over 30 seconds, then increase the OSRECV_TIMEOUT attribute value.
To change these default settings:
1.Locate the following line in the internal.xml file:
<CALYPSONETINFO/>
2.Modify the <CALYPSONETINFO/> line as follows:
Add the OSSEND_TIMEOUT attribute as follows:
<CALYPSONETINFO OSSEND_TIMEOUT="seconds"/>
Add the OSSRECV_TIMEOUT attribute as follows:
<CALYPSONETINFO OSSRECV_TIMEOUT="seconds"/>
Add both the OSSEND_TIMEOUT and OSSRECV_TIMEOUT attributes as follows:
<CALYPSONETINFO OSSEND_TIMEOUT="time" OSRECV_TIMEOUT="time"/>

Web Cache 2.0.0.2.0 Available

In case you haven't already noticed, Web Cache 2.0.0.2.0 is
available for download on OTN. There is also an additional patch
set or two available on Metalink.

I can't figure out where is WebCache 2.0.0.2.0 stand alone
download.
I only found these links:
Oracle9iAS Web Cache for Sun SPARC Solaris
webcache20020_solaris.zip - Note: requires prior installation of
Web Cache 2.0.0.1.0 - see the readme. (10,022,460 bytes)
webcache20010solaris.tar.gz - (64,298 kb) - Note: This download
is Oracle9iAS Web Cache (v2.0.0.1.0), a later version than is
currently shipping in Oracle9iAS v1.0.2.2.
esikit2.zip - (146 kb)
The latest release of Oracle9i Application Server includes
support for ESI (Edge Side Includes) technology that will improve
the response time and scalability of even the most dynamic Web
sites.
Or is necesary to download "Oracle9iAS v1.0.2.2.1 Core for Sun
SPARC Solaris"
Best regards, Marcelo.

Where is ias903 j2ee and web cache distribution for NT?

http://otn.oracle.com/software/products/ias/devuse.html
gives option 4
NT - 324 MB
Oracle9iAS J2EE and Web Cache
- Oracle HTTP Server
- Oracle9iAS Containers for J2EE
- Oracle9iAS Web Cache
- Oracle Enterprise Manager
- New! v9.0.3 Linux , Solaris , HP-UX , HP Tru64
- NT/2000
Clicking at NT/2000 points me to 9ias90201_core.zip.
So where is the 903 distribution? Why is it Sun Solaris?!
Oracle9iAS Release 2 downloads for Sun SPARC Solaris
On this page you will find:
Oracle9iAS J2EE and Web Cache:
- v9.0.3
- v9.0.2.0.1
Oracle9iAS Enterprise Edition
Oracle9iAS Supplemental CD's
Other Utilities
Oracle9iAS J2EE and Web Cache Release 2 v9.0.3
9ias90201_core.zip - (340,044,344 bytes)
This is a lightweight version of Oracle9iAS v2. It consists of the following components:
-Oracle HTTP Server
-Oracle9iAS Web Cache
-Oracle9iAS Containers for J2EE (OC4J)

Hi Ken --
We are just about wrapped up with our Oracle9iAS Release 2 (9.0.3) version for Windows NT. As you've seen, we have released the 903 version for a number of Unix platforms (Solaris, HP-UX, HP-Tru64, Linux) already and the Windows platform will follow shortly.
For the moment, if you're running on Windows and want to use the J2EE 1.3 functionality, you can download the pure Java OC4J 903 distribution available from OTN. This is the same set of Java code that is the 9iAS distribution.
cheers
-steve-
http://otn.oracle.com/software/products/ias/devuse.html
gives option 4
NT - 324 MB
Oracle9iAS J2EE and Web Cache
- Oracle HTTP Server
- Oracle9iAS Containers for J2EE
- Oracle9iAS Web Cache
- Oracle Enterprise Manager
- New! v9.0.3 Linux , Solaris , HP-UX , HP Tru64
- NT/2000
Clicking at NT/2000 points me to 9ias90201_core.zip.
So where is the 903 distribution? Why is it Sun Solaris?!
Oracle9iAS Release 2 downloads for Sun SPARC Solaris
On this page you will find:
Oracle9iAS J2EE and Web Cache:
- v9.0.3
- v9.0.2.0.1
Oracle9iAS Enterprise Edition
Oracle9iAS Supplemental CD's
Other Utilities
Oracle9iAS J2EE and Web Cache Release 2 v9.0.3
9ias90201_core.zip - (340,044,344 bytes)
This is a lightweight version of Oracle9iAS v2. It consists of the following components:
-Oracle HTTP Server
-Oracle9iAS Web Cache
-Oracle9iAS Containers for J2EE (OC4J)

Httpd.conf requires Web Cache listening port to be defined - Why?

Can someone tell me why the httpd.conf file requires the Web Cache listening port in its configuration; Port=web_cache_port entry. I.e
## httpd.conf -- Apache HTTP server configuration file
Port 7777
Listen 7778
ServiceName http_server.company.com etc...
The reason behind my question is that I thought Web Cache was a stand alone application that just passed requests through to the http server.
This question arose when reading page 6-8 of Oracle9iAS Web Cache - Administration and Deployment Guide - Release 2 (9.0.2)

Thx. Now I know why entering petstore thru' webcache at port 80
http://blah/petstore/
returns
http://blah:7777/petstore/control/....
where 7777 is OHS listening port.
Changing PORT to 80 fixed my problem! i,e. back thru webcache
http://blah/petstore/control/....
BTW, I managed to killed webcache a couple of times in the last 2 days by changing ports configuration using the Web admin interface at port 4000 and each time I need to reinstall ias903 core on win2k server. How stable is this beast? The EM interface is also very sensitive to editing server.xml etc directly in advanced properties...
See below for info on PORT.
Cheers.
http://httpd.apache.org/docs/mod/core.html#port
http://httpd.apache.org/docs/mod/core.html#usecanonicalname
* The Port directive sets the SERVER_PORT environment variable (for CGI and SSI), and is used when the server must generate a URL that refers to itself (for example when creating an external redirect to itself). This behavior is modified by UseCanonicalName.
The primary behavior of Port should be considered to be similar to that of the ServerName directive. The ServerName and Port together specify what you consider to be the canonical address of the server. (See also UseCanonicalName.)

Omniportlet and web cache

I am setting up the omniportlet. I get the following message:
Web Cache Invalidation default config file not defined by oracle.http.configfile
REASON:
oracle.http.configfile system property is not defined when you start OC4J
Does anyone have a clue as to what this means? What is oracle.http.configfile and why won't my OC4J find it?
Any ideas greatly appreciated.

Thanks for your reply. It is in my mid-tier.
I tried to follow the document, and I am getting that my Webcache service hung on starting.
I am on NT, and I have three entries for webcache
1. WebCache
2. WebCacheAdmin
3. WebCacheMon
Before I starting messing with this, the WebCache and WebCacheAdmin would come up. I went into WebCache Admin and selected AutoRestart, which I believe is what is supposed to start WebCacheMon. Is this necessary? Is this what runs on port 4001 (Invalidator Port)?
The reason I ask is because in the notes for setting up the webcache sample provider it says the url to register the provider is
http://<cache_instance_name>:<cache_port>/jpdk/providers/webcache. This is different from what you normally see, which is http://<provider_hostname>:<port>/jpdk/providers/webcache.
I don't know what to use for cache_instance_name or cache_port. I thought that was the invalidator port of 4001, but I am not sure.
Thank you.

Web Cache - oracle.sysman.emSDK.util.jdk.EMException:...

Hi, I get this error when installing 9iAS J2EE and Web Cache:
2
Oracle9iAS Web Cache, 9.0.2.0.0
Copyright: Oracle Corporation, 1999-2002
Build CALYPSO_9.0.0_NT_020516
Cannot start OracleORA_9iAS_DES_2WebCacheAdmin
Cannot start OracleORA_9iAS_DES_2WebCache
and now I cannot start WebCache, when I try I get:
oracle.sysman.emSDK.util.jdk.EMException: Throwable: The attempt to start or stop Web Cache failed.
What I have to change, modify or what script should I run.
Thanx in advance
Joe

I suggest that you post this question in the OracleAS Portal Caching forum:
http://forums.oracle.com/forums/forum.jsp?forum=9

Oracle9iAS Web Cache Invalidation?

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