Comments on: JSP Cache Issues in 11i and R12

By: Jeya

Jeya — Wed, 18 Jan 2012 08:56:16 +0000

I am facing a typical issue
I have developed a JSP and paste in OA_HTML top and executed found was working fine.
After some modification the JSP was pasted in OA_HTML top, but the changes was not got impact.
Then I have recompile the mentioned way ojspCompile.pl –compile -s ‘MyFavoriteJSP.jsp’ but no use,

anyone can help me.

Thanks
Jeyaseelan

By: Vasu Balla

Vasu Balla — Fri, 02 Dec 2011 20:12:43 +0000

you should not delete files under common_top/webapps/oacore/html.
these are the source jsp files that are required for apps to function. the jsp cache files will be under common_top/_pages.

So please restore html directory from backup or copy them from another identical instance. and then regenerate cache using ojspCompile.pl

By: RJ

RJ — Thu, 01 Dec 2011 21:19:20 +0000

Hi,

I get hte below:
But there no class files under _pages.
sun1597_applmgr_ERP12SAN$ perl ojspCompile.pl –compile –flush -p 2
logfile set: /u003/oracle/ERP12SAN/inst/apps/ERP12SAN_sun1597/logs/appl/rgf/ojsp/ojspc_error.log
starting…(compiling all)
using 10i internal ojsp ver: 10
synchronizing dependency file:
enumerating jsps…0
initializing compilation:
eliminating children…0 (-0)
No compilations needed.

I changed orion-web.xml also to recompile.
I also deleted everything under
/u003/oracle/TEST/apps/apps_st/comn/webapps/oacore/html.
Is this causing issue?
Any way to bring up the application.
Do help me.

Thanks,
RJ

By: Harris

Harris — Wed, 23 Nov 2011 16:05:13 +0000

Hi vasu,

Good article, very useful for jsp developers. I have scenario, where in am importing few oracle class residing under JAVA_TOP in a jsp file which is under $OA_HTML. When I compile this jsp file it will definitely through error as class files will not be accessible from OA_HTML. So am not compiling the jsp file in R12 instance, when I try to navigate to this jsp page in the instance servlet was getting auto created in _pages folder. somehow now its stopped creating the servlets and my changes in jsp files are not reflecting, infact am getting a blank page as it could not find the servlet. Any thoughts on this.

By: Sasi

Sasi — Fri, 14 Oct 2011 04:03:02 +0000

Hi Vasu, its a goodpost and very useful.

Regards,
Sasi

By: Jyotirmay Pathak

Jyotirmay Pathak — Thu, 02 Jun 2011 11:08:56 +0000

Hi Vasu,

Very nice explanation.

Regards
Jyotirmay Pathak

By: Prasanna Thiagarajan

Prasanna Thiagarajan — Wed, 10 Mar 2010 21:48:42 +0000

Here is application.log

10/03/10 16:26:01.694 html: chain failed
java.io.IOException: The Writer is closed
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.4.0) ].server.http.EvermindJSPWriter.print(EvermindJSPWriter.java:707)
at com.evermind[Oracle Containers for J2EE 10g (10.1.3.4.0) ].server.http.EvermindJSPWriter.write(EvermindJSPWriter.java:701)

By: Prasanna Thiagarajan

Prasanna Thiagarajan — Wed, 10 Mar 2010 19:21:35 +0000

Hi Vasu,
This is a great post.
I have a question regarding how jsp how its treated between 11i and R12.

We have a jsp which allowe us to open pdf files from file system, that works well in 11i instance.

R12 instance we are able to open the pdf file but the images in the pdf file are missing only text part is comming up.

can you please guide me how to debug this issue.

Thanks
-Prasanna

By: Vinod

Vinod — Wed, 10 Mar 2010 12:23:40 +0000

Hi Vasu,

Can you explain more about the jtf cache port and what is the expected status of this port (occupied/unocccupied) on each MT in a multi MT environment.

We often hit this error in my environment

____________
IAS Cache initialization failed. The Distributed Caching System failed to initialize on port: 10562. The list of hosts in the distributed caching system is: 140.85.99.163 . The port 10562 should be free on each host running the JVMs.
____________

When I check this port is sometimes occupied by OPP and other CM related processes. When I bring down CM and start the oacore, it comes up fine. But when I check the other MT, the jtf port might be occupied by some other process but still the oacore comes up fine.

So can you please detail what is expected out of this port and the other related information about it.

Thanks,
Vinod

By: John Piwowar

John Piwowar — Thu, 05 Mar 2009 02:13:46 +0000

Hi Vasu,

Great post, and a nice tip on adding the ‘recompile’ mode to the context file; I didn’t know about that. :-)

I’ve also found the -s argument to ojspCompile.pl to be useful. There have been situations where I knew I only needed to recompile one or two JSPs. ojspCompile.pl –compile -s ‘MyFavoriteJSP.jsp’ gets the job done in a few seconds, rather than 15-20 minutes to recompile all JSPs.

Regards,

John P.