Web caching

I need some help here with this CE-510 A box frankly I haven't worked on it.
My customer has asked for Web caching three sites eg. http://support.cisco.com and given me an IP address xx.xx.xx.xx.
Any document that someone could point out to would be great. If sample configurations are available it would be even better.
I am also attaching current config.
All users are accessing web through a proxy server.
-Hoogen
Thanx in advance

Similar Messages

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

Wccp web-cache -- can't get it working

I installed a Squid based caching appliance, by Stratacache. it supports GRE wccp redirect in transparent mode, I have it configured as wccpv2 using the Router's LAN ip address 10.250.1.2.
Every time I turn on the caching for a host (or the entire LAN) the internet breaks for whomever I turn wccp on. I have tried disabling CEF and have moved the cache to it's own router interface.
Topology of the Cisco 2801-SEC-K9 router, running 12.4(22)T advsecurity
FastE 0/0 (10.250.1.1) ---> connected directly to cache server
FastE0/1 (10.23.1.1) ---> Connected to internal LAN
MultiLink1 (12.x.x.98) ---> 4 T1 multilink to AT&T Internet Service
so here is my config,
ip wccp web-cache redirect-list 46 group-list 40 password webcache
ip wccp version 2
access-list 40 permit 10.250.1.2 (cache server)
access-list 46 permit 10.23.1.21 (test host for wccp)
interface fastethernet0/1
ip wccp web-cache redirect in
here is the output from the router
Roosevelt-2801(config)#do sh ip wccp web-cache view
    WCCP Routers Informed of:
        12.x.x.98
    WCCP Clients Visible:
        10.250.1.2
    WCCP Clients NOT Visible:
        -none-
Roosevelt-2801(config)#do sh ip wccp web-cache det
WCCP Client information:
        WCCP Client ID:          10.250.1.2
        Protocol Version:        2.0
        State:                   Usable
        Redirection:             GRE
        Packet Return:           GRE
        Assignment:              HASH
        Initial Hash Info:       00000000000000000000000000000000
                                 00000000000000000000000000000000
        Assigned Hash Info:      FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
                                 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
        Hash Allotment:          256 (100.00%)
        Packets s/w Redirected: 914
        Connect Time:            1d18h
        Bypassed Packets
          Process:               0
          CEF:                   0
          Errors:                0
Roosevelt-2801(config)#do sh ip wccp web
Global WCCP information:
    Router information:
        Router Identifier:                   12.x.x.98
        Protocol Version:                    2.0
    Service Identifier: web-cache
        Number of Service Group Clients:     1
        Number of Service Group Routers:     1
        Total Packets s/w Redirected:        7800
          Process:                           94
          CEF:                               7706
        Service mode:                        Open
        Service Access-list:                 -none-
        Total Packets Dropped Closed:        0
        Redirect Access-list:                46
        Total Packets Denied Redirect:       8195426
        Total Packets Unassigned:            0
        Group Access-list:                   40
        Total Messages Denied to Group:      14
        Total Authentication failures:       8
        Total Bypassed Packets Received:     0
So I can see the packets redirected, the cache never sees them, the router and cache can ping each other, the cache and LAN clients can ping each other - am I missing something?

so I found the problem... hopefully this helps somebody else in the future... the problem is the redirected packets were sourced from the router multilink1 interface IP address and the cache was expecting them from the router fa0/0 interface, so it dropped them.
also the cache has a "spoof client IP" option that was on, because we prefer to do this for netflow, but, I don't think client-IP-spoofing works with the standard web-cache wccp service. It was causing internet problems so I turned the spoofing off and it works fine...
hope this helps

Web Cache doesn't work with Oracle Enterprise Manager

In my Oracle 9i Application Server Release 2 since I have changed the administrator and invalidator password in the Web Cache Manager the Web Cache appears as unavailable in the Oracle Enterprise Manager, but it's working!! Any idea?

You have to modify the password manually in OEM's target.xml.

IE browser and Web Cache and SSL - Internet Explorer cannot display the web page

When using IE8, IE9, or IE10 with Web Cache and SSL certain pages which display a lot of data returns the error - "Internet Explorer cannot display the web page."
if we eliminate SSL but continue to use Web Cache, the error does *not* reproduce & If we eliminate Web Cache altogether the error again does *not* reproduce. The error is only reproducible when we use SSL with Web Cache and if we use IE and we access *large* pages. The error is not reproducible with Firefox or Chrome. This is a Web Tier 11.1.1.7 installation with WebLogic 10.3.6 & Red Hat Enterprise 5 Linux x86-64
Event_log shows below errors.
[2013-06-13T16:34:35-04:00] [webcache] [NOTIFICATION:1] [WXE-09002] [logging] [ecid: ] Generated by Oracle Web Cache on Thu Jun 13 16:34:35 2013 - Build 11.1.1.7.0 130113.0721
[2013-06-13T16:34:36-04:00] [webcache] [NOTIFICATION:1] [WXE-08513] [logging] [ecid: ] Cache server process ID 4469 is starting up.
[2013-06-13T16:34:36-04:00] [webcache] [NOTIFICATION:1] [WXE-09612] [main] [ecid: ] Oracle Web Cache 11g (11.1.1.6), Build 11.1.1.7.0 130113.0721
[2013-06-13T16:34:37-04:00] [webcache] [NOTIFICATION:1] [WXE-13002] [config] [ecid: ] Maximum allowed incoming connections are 1000
[2013-06-13T16:35:00-04:00] [webcache] [NOTIFICATION:1] [WXE-09441] [stats] [ecid: ] DMS enabled
[2013-06-13T16:35:28-04:00] [webcache] [NOTIFICATION:1] [WXE-12209] [cluster] [ecid: ] A 1 node cluster successfully initialized
[2013-06-13T16:35:29-04:00] [webcache] [NOTIFICATION:1] [WXE-09614] [main] [ecid: ] The following Oracle Web Cache internal files are pre-populated to the cache: [[
        /nssb-p.adm.fit.edu:7785/_oracle_http_server_webcache_static_.html
        /nssb-p.adm.fit.edu:4448/_oracle_http_server_webcache_static_.html
[2013-06-13T16:35:29-04:00] [webcache] [NOTIFICATION:1] [WXE-09614] [main] [ecid: ] [[
The following Oracle Web Cache internal files are pre-populated to the cache: [[
        /nssb-p.adm.fit.edu:7785/_oracle_http_server_webcache_checkserviceavailability_.html
        /nssb-p.adm.fit.edu:4448/_oracle_http_server_webcache_checkserviceavailability_.html
[2013-06-13T16:35:29-04:00] [webcache] [NOTIFICATION:1] [WXE-09608] [main] [ecid: ] The cache server process started successfully.
[2013-06-13T16:35:29-04:00] [webcache] [WARNING:1] [WXE-12104] [utl] [ecid: ] Oracle Web Cache process has page faulted
[2013-06-13T16:44:22-04:00] [webcache] [ERROR:32] [WXE-11904] [security] [ecid: ] SSL handshake fails SSL-29049
[2013-06-13T16:44:22-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: The record type is unknown.
[2013-06-13T16:44:22-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: Remote IP [163.118.22.16]:55145
[2013-06-13T16:44:22-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: Local IP 163.118.170.70:4448
[2013-06-13T16:44:22-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: SSL error during handshake (details: internal=The record type is unknown. system=Success)
[2013-06-13T16:44:27-04:00] [webcache] [ERROR:32] [WXE-11904] [security] [ecid: ] SSL handshake fails SSL-29049
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: The record type is unknown.
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: Remote IP [163.118.22.16]:55144
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: Local IP 163.118.170.70:4448
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: SSL error during handshake (details: internal=The record type is unknown. system=Success)
[2013-06-13T16:44:27-04:00] [webcache] [ERROR:32] [WXE-11904] [security] [ecid: ] SSL handshake fails SSL-29049
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: The record type is unknown.
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: Remote IP [163.118.22.16]:55148
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: Local IP 163.118.170.70:4448
[2013-06-13T16:44:27-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: SSL error during handshake (details: internal=The record type is unknown. system=Success)
[2013-06-13T16:44:35-04:00] [webcache] [ERROR:32] [WXE-11904] [security] [ecid: ] SSL handshake fails SSL-28864
[2013-06-13T16:44:35-04:00] [webcache] [ERROR:32] [WXE-11904] [security] [ecid: ] SSL handshake fails SSL-28864
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:44:47-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:45:18-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:45:18-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:45:22-04:00] [webcache] [ERROR:32] [WXE-11904] [security] [ecid: ] SSL handshake fails SSL-28864
[2013-06-13T16:45:22-04:00] [webcache] [ERROR:32] [WXE-11904] [security] [ecid: ] SSL handshake fails SSL-28864
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:45:38-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
[2013-06-13T16:45:41-04:00] [webcache] [WARNING:1] [WXE-11905] [security] [ecid: ] SSL additional information: This error occurred because the peer closed the connection.
[2013-06-13T16:45:41-04:00] [webcache] [WARNING:1] [WXE-11906] [security] [ecid: ] SSL details: success during initialization (details: internal=success system=Success)
Any help or suggestions are greatly appreciated
Tnx a lot,
Lokesh

Hello ,
Try Below Workarounds:
Workaround 1:
Open Central Admin
àApplication Management à
Configure Alternate access mapping-->Edit your web application zone and add your server name in Intranet zone. So default can be serverIP and intranet could be servername.
Workaround 2:
Might be there is some issue with DNS and try to check that WebApplication is pointing to correct IP or not.
Also try to access your Sharepoint site using ip Address .. If you still gets error Kindly share the logs ..
Best
Regards Kuldeep Verma
Please remember to click "Mark As Answer"
if a post solves your problem or "Vote As Helpful" if it was useful.

An error occurred while starting "Web Cache".

We have corrected the issue. There was something wrong with the files in the WebCache Folder.
Hello,
When starting Web Cache we get the following message:
An error occurred while starting "Web Cache".
WebCache : WebCache - failed to start a managed process after the maximum retry limit
WebCache : WebCacheAdmin - failed to start a managed process after the maximum retry limit
For more information, look at the logs using the related link below.
Related Link Error Logs
When we open the event_log in the \webcache\logs folder, there is nothing there. The process is not writing any type of message to the event_log.
We have tried changing port numbers without any success.
This process was working until a restart of the server yesterday. Now Web Cache and Portal are not showing active.
Thank you for any input on this matter.
Message was edited by:
user593854

Try to stop processes that might still occupy the port of the webcache and webcache admin.
Also check the logfiles in the opmn.
cu
Andreas

ADF application integrating with Oracle Web Cache

Hello,
I am trying to integrated my ADF 11g application with Oracle Web Cache. I used this link http://andrejusb.blogspot.com/2010/06/oracle-webtier-11g-configuration-for.html for it.
I am able to access my ADF application using webcache port 7785.
I created few caching rules in the Oracle Web Cache. And in the popular request section of the Oracle Web cache i see jpg,png and other image files cached.
But the issue is when the application access images like /testapp/test/images/abc.jpg?_adf.ctrl-state=5b0s7lzfo_29 . I created a caching rule with regular expression ^/testapp/test/images/[A-Za-z0-9_]*\.(gif|jpeg|png|jpg)\?_adf\.ctrl-state=[A-Za-z0-9_]*$.
But when i access the popular request in em i don't see the URL given above as cached. The caching reason it specifies as URL contains query string.
I am not sure if i need to do anything additional to cache these URL's as well.
Thanks!
Ram

Yes that works. But my question is how to cache the urls which has querystring. I was trying to give a regular expression to match the url so that the url which contains parameters like _afrLoop which changes with each HTTP request can also be cached.

Need help resolving Web Cache upgrading error

I successfully installed 10g AS on top of my 9i AS (9.0.3) on a different Oracle home. Then I proceeded to run the Upgrade Assistant (iasua.bat). Everything went well except the upgrade of Web Cache failed. I'm only installing/upgradeing the J2EE and Web Cache. Any help would be greatly appreciated.
I'm running on XP SP2.
the following are the lines in iasua.log related to the error:
2007/04/04 21:10:22.890 GMT NOTIFICATION:1 Framework: Starting to upgrade WebCache.
2007/04/04 21:10:23.515 GMT ERROR:1 WebCache: Invalid element 'MULTIVERSIONHEADERSRULE' in content of 'CACHEABILITYRULE', expected elements '[SELECTORS]'.
2007/04/04 21:10:23.515 GMT ERROR:1 WebCache: Unable to upgrade file C:\Oracle\ora9ias\webcache\webcache.xml
2007/04/04 21:10:23.515 GMT NOTIFICATION:1 Framework: Finished upgrading WebCache with status: Failure.

What that means is Silverlight can't find a required component.
When I clicked on the site, it loaded pretty slow but I got to see the login screen without error.
Either the expected dll is cached on my machine or you have an intermittent problem.
As I'm a some-time Silverlight developer I could well have necessary dll if they are standard components.
As an outside chance...
You could try clearing your cache in case it's a versioning issue.
Failing that, I suppose you could maybe install the Silverlight and blend sdk.
One thing you could easy try.
Does Silverlight work for you generally?
Follow the link on this page:
http://social.technet.microsoft.com/wiki/contents/articles/30387.silverlight-trouble-shooting-installs.aspx
If that errors then it's the install on your machine.
Hope that helps.
Recent Technet articles: Property List Editing;
Dynamic XAML

OCS 10.1.2.2. on Win2003ServerR2 - Web Cache status "unknown"

Hi, I am experiencing the following:
- When, in EM, I navigate to the Middle tier of my OCS installation, everything looks fine (all processes green and up, including Web Cache).
- If I click on the Web Cache link --> webcache page opens regularly --> web cache icon on top of the page is GREY, status reported as UNKNOWN.
- If from here I click on the "stats" tab, all the stats are reported UNKNOWN and the dropdown menu on top of the page is completely empty, and nothing is selectable.
- If I click on the "Administrative" tab, all the options (e.g. Sites, Origin Servers) are populated correctly.
- last: if I exit from EM and navigate on the webcache administrative page (on port 9400), everything looks fine, and I can successfully start/stop the webcache etc.
It used to work from EM too in the recent past, no changes have been made to the system and the logfiles look OK....... Any clues?
Thanks, Roberto

Hi Andreas,
yes, I tried to restart EM agent... in a matter of fact, I also tried a complete server reboot.
Regarding the XML files, I have been carefully checking targets.xml and webcache.xml and it seems they are allright.... In fact, webcache IS working (if I check it through the administrative tool on port 9400). The whole system runs smooth.......
There must be something strange just with EM configuration....
Can you please tell me a bit more about the various XML files related to EM and Webcache configuration? Maybe I'm missing something....
Thank you
Roberto

FRM-92101: Load Balancing Forms 10g with Web Cache

Hi,
IÂ´m having some problems with Oracle Forms and Webcache 10g and I was wondering if you
could help.
Machines: (Pentium IV 2.6 GHz; 2GB RAM; 80GB HD)
A. Red Hat Linux AS 2.1
Oracle AS 10g - Infrastructure Installation
B. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
C. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
I didnÂ´t apply any Patchsets of Oracle AS 10g. My current version is 9.0.4.0 .
Goal:
Use Oracle Webcache 10g on machine B for Load Balancing an Oracle Forms Application
on machines B and C.
Facts:
The Oracle AS 10g installation on the 3 machines was made without problems.
The Forms Applications are running without problems on both Forms servers in machine B and C.
Symptoms:
IÂ´m getting the following error when I try to acces the forms application through Webcache:
FRM-92101: There was a failure in the forms server during startup.
This could happen due to invalid configuration.
Please look in the web-server log file for details.
But, this error happens ONLY when BOTH OC4J_BI_Forms instances (machines B and C) are
running.
When just one of the OC4J_BI_Forms is running everything works fine.
Webcache Configuration:
IÂ´ve followed Metalink note 207668.1: Configuring Web Cache as a Load Balancer for Application Servers
step by step to make the configuration of the following components:
1. Configuration of the origin servers
2. Configuration of Site definitions
3. Configuration of Site to server mapping
After that, IÂ´ve follwed the Metalink note 229900.1: Integrating and using Web Cache with Forms 9i for Load Balancing
step by step to make the configuration of the following components:
4. Session Binding
Then I try to test the Load Balancing and I got the error FRM-92101 when both OC4J_BI_Forms
instance were running.
IÂ´ve searched Metalink and found note 268830.1: Webcache Won't Load Balance 2 Forms Instances.
Following the note instructions I did the following changes:
Added these lines at the end of HTTPD.conf (machine B):
CookieTracking On
CookieName myformscookie1
Added these lines at the end of HTTPD.conf (machine C):
CookieTracking On
CookieName myformscookie2
In Webcache configuration:
IÂ´ve Changed the default session binding from JSESSIONID to "ANY SET COOKIE" for the
site's session binding.
But even after these changes IÂ´m getting FRM-92101 error on the same conditions.
How can I solve this problem ?
Thank you in advance.
Marcus Santos.
([email protected])

Just ran into this problem last Tuesday, Nov.30 and applied the changes today.
My configuration is similar to yours: 9.0.4 web cache on machine A, 9.0.4 10gAS forms and reports standalone on machine B and C (not a cluster, no infra).
I appended the Cookie lines you mentioned in httpd.conf located in $ORACLE_HOME/Apache/Apache/conf in both machines B and C.
One important thing you may have missed. After changing httpd.conf in each 9iAS instance, you need to make the change known to dcmctl so issue:
dcmctl updateConfig -ct ohs
Then do the following for each 9iAS instance and it should be ready for webcache:
dcmctl stop
dcmctl start
Setup Any-set-Cookie in webcache instead of JSESSIONID and the whole thing should now work. You can run a form through machine A which will load balance to either machine B or C (which can both be up). Then, try shutting down 9iAS on machine B or C and run a form again. They now all work.
HTH,
Raffy

Cannot start Web Cache in Oracle 10g App Server

Hi,
Our Application runs on Oracle10g App Server,
When it tried to start WebCache using the command
opmnctl startproc ias-component=WebCache process-type=WebCache
it shows the error...
opmn id=oracle10g:6200
no enabled components for this request
When i tried to enable WebCache using Enable/Disable Component in Oracle 10g Enterprise manager - I can't see WebCache component it to enabe or disable it.
When i tried opmnctl status., it shows
------------------------------------------------+---------
ias-component | process-type | pid | status
------------------------------------------------+---------
HTTP_Server | HTTP_Server | 7276 | Alive
LogLoader | logloaderd | N/A | Down
dcm-daemon | dcm-daemon | N/A | Down
OC4J | home | 7684 | Alive
OC4J | rhs | N/A | Down
OC4J | instaremit | 5880 | Alive
OC4J | insta_test_apr_02 | 7100 | Alive
WebCache is not running, also as the WebCache is not listed in Oracle 10g Enterprise manager, i can' enable or disable it.
Plz Help me over this.,
Regards.,
Deepak.C

Hi.,
Thanks again !!!
Yes, My Oracle HTTP Server is listening on port 80.
I am not clear, may i know why should the ports be changed for the request to go through Web Cache ???
Can i assign port 80 for Web Cache and 7778 for HTTP Server ?
Also In Oracle Enterprise Manager, Web Cache is not available...
home, HTTP Server, management alll these are there...
Also for HTTP Server, it's not showing any metric info, 'Not Yet Available' is shown even though the HTTP Server is running, how can i get metric info about Oracle HTTP Server, i have also used dmstool -t ohs_server, its not working
It's showing... FLEXMON ERROR : detected invalid table name ohs_server
dmstool -l -t also does'nt lists ohs_server
Hellp me over this.....
Deepak.C

Web caching

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